NAVTEX RECEIVER - Furuno

NAVTEX RECEIVER 

NX-700A/B

Your Local Agent/Dealer 

9-52 Ashihara-cho, 

Nishinomiya 662-8580, JAPAN 

Telephone : 0798-65-2111 

Fax : 

0798-65-4200 

( HIMA 

All rights reserved. 

Pub. No. OME-56490 

) NX-700 

Printed in Japan 

FIRST EDITION :MAY. 

2005 

B 

: JUN. 24, 2005 

*00015280401* 

*00015280401* 

* 0 0 0 1 5 2 8 0 4 0 1 * 

*OME56490B00* 

*OME56490B00* 

* O M E 5 6 4 9 0 B 0 0 *

IMPORTANT NOTICE 

• No part of this manual may be copied or reproduced without written permission. 

• If this manual is lost or worn, contact your dealer about replacement. 

• The contents of this manual and equipment specifications are subject to change without 

notice. 

• The example screens (or illustrations) shown in this manual may not match the screens 

you see on your display. The screen you see depends on your system configuration and 

equipment settings. 

• This manual is intended for use by native speakers of English. 

• FURUNO will assume no responsibility for the damage caused by improper use or 

modification of the equipment or claims of loss of profit by a third party. 

• Please carefully read and follow the operation and maintenance procedures set forth in 

this manual. 

• Store this manual in a convenient place for further reference. 

i

SAFETY INSTRUCTIONS 

Safety information for the Operator 

WARNING 

ELECTRICAL SHOCK HAZARD 

Do not open the equipment. 

Only qualified personnel 

should work inside the 

equipment. 

Do not disassemble or modify the 

equipment. 

CAUTION 

A warning label is attached to the equipment. 

Do not remove the label. If the 

label is missing or damaged, contact 

a FURUNO agent or dealer about 

replacement. 

WARNING 

To avoid electrical shock, do not 

remove cover. No user-serviceable 

parts inside. 

Name: Warning Label (1) 

Type: 86-003-1011-1 

Code No.: 100-236-231 

Fire, electrical shock or serious injury can 

result. 

Immediately turn off the power at the 

switchboard if the equipment is emitting 

smoke or fire. 

Continued use of the equipment can cause 

fire or electrical shock. Contact a FURUNO 

agent for service. 

Keep heater away from equipment. 

A heater can melt the equipment's power 

cord, which can cause fire or electrical 

shock. 

Use the proper fuse. 

Fuse rating is shown on the equipment. 

Use of a wrong fuse can result in damage 

to the equipment. 

ii

Safety information for the Installer 

ELECTRICAL 

SHOCK 

HAZARD 

WARNING 

Do not open the equipment 

unless totally familiar with 

electrical circuits and 

service manual. 

Only qualified personnel 

should work inside the 

equipment. 

Turn off the power at the mains switchboard 

before beginning the installation. 

Fire, electrical shock or serious injury can 

result if the power is left on or is applied 

while the equipment is being installed. 

Observe the following compass safe 

distances to prevent deviation of a 

magnetic compass. 

Display unit 

CAUTION 

NX-700A 

NX-700B 

Receiver unit NX-7001 

Standard Steering 

1.45 m 0.95 m 

0.30 m 0.30 m 

1.15 m 0.75 m 

Attach securely protective 

earth to the ship's body. 

The protective earth is required 

to the power supply to prevent 

electrical shock. 

iii

FORWORD 

Congratulations on your choice of the FURUNO NX-700A/B NAVTEX Receiver. 

We are confident that you will enjoy many years of operation with this fine piece 

of equipment. 

For over 50 years, Furuno Electric Company has enjoyed an enviable reputation 

for quality and reliability throughout the world. Our extensive global network of 

agents and dealers furthers this dedication to excellence. 

The NX-700A/B is just one of the many Furuno developments in the field of 

marine radio communication. 

NX-700A: Display unit w/printer 

NX-700B: Display unit w/o printer 

This NX-700A/B provides cost-effective price, high sensitivity and simple 

operation in one compact and light-weight unit. In addition to its fundamental 

function of receiving NAVTEX broadcasts, this unit can also function as nav data 

display when connected to navigation equipment. 

This unit is designed and constructed to ensure the user many years of 

trouble-free operation. To obtain full performance from the equipment, however, 

you should carefully read and follow the recommended procedures for 

installation, operation and maintenance. No machine can perform its intended 

functions unless it is installed and maintained properly. 

Thank you for considering and purchasing FURUNO equipment. 

iv

Features 

NAVTEX (Navigational Telex) is a world wide coastal telex broadcasting system. 

Coastal NAVTEX broadcasting stations with specific ID’s transmit Navigational 

warnings. Meteorological warnings, Search and Rescue (SAR) information and 

other navigational information for NAVTEX receiver-equipped vessels sailing in 

coastal waters. 

The FURUNO NX-700 NAVTEX receiver receives NAVTEX messages and 

automatically displays them together with station ID and message category 

information. 

If ship’s position data is fed from navigation equipment, the NX-700 

automatically decides in which NAVAREA the vessel is navigating, and selects 

stations. (NAVAREAs are geographical zones defined by the international 

Maritime Organization.) 

-Meets the following standards and regulations 

MSC.148 (77) IMO A.694 (17) 

IEC 61097-6 Ed.2 CDV (2005-02) 

IEC 60945 Ed. 3 and 4 

IEC 61162-1 and 2 

EN 300 065V 1.1.3 

EN 301 011V 1.1.1 (1998-09) 

ITU-R M 540-2 

ITU-R M 625-3 

-Receives 518 kHz and another (490 or 4209.5 kHz) at the same time 

-5” LCD display 

-Prints out the message selected 

-Bright 76 x 100 mm, monochrome LCD, 240 x 320 dots with adjustable contrast 

and brilliance 

-Low power consumption 

-Displays the NAV data (date, own ship’s position, speed and course) or distance 

(distance between own ship’s position and information mentioned in the 

message) at the bottom of screen 

v

TABLE OF CONTENTS 

EQUIPMENT LISTS ........................................................................................... viii 

SYSTEM CONFIGURATIONS .............................................................................. x 

1. PRINCIPLE OF NAVTEX SYSTEM ............................................................... 1-1 

1.1 How NAVTEX Works................................................................................................. 1-1 

1.2 NAVTEX System Operation....................................................................................... 1-1 

1.3 Message Format ....................................................................................................... 1-2 

1.4 NAVTEX Station Map ................................................................................................ 1-3 

1.5 NAVTEX Station List.................................................................................................. 1-4 

2. OPERATION................................................................................................... 2-1 

2.1 Operating Controls .................................................................................................... 2-1 

2.2 Turn the Unit On/Off .................................................................................................. 2-1 

2.3 Adjusting LCD Dimmer.............................................................................................. 2-2 

2.4 Confirming the New Message.................................................................................... 2-3 

2.5 Sample Messages..................................................................................................... 2-4 

2.6 Choosing the Receive Mode ..................................................................................... 2-5 

2.7 Choosing the Local Frequency.................................................................................. 2-6 

2.8 Editing the Setting for Station and Message .............................................................. 2-6 

2.9 Switchings the Frequency to Display......................................................................... 2-8 

2.10 Alarm Messages........................................................................................................ 2-8 

2.11 Processing Messages ............................................................................................... 2-9 

2.12 Printing Messages................................................................................................... 2-10 

2.13 Editing the NAVTEX Station List .............................................................................. 2-12 

2.14 Icons ....................................................................................................................... 2-15 

2.15 Messages List ......................................................................................................... 2-16 

2.16 Other Functions....................................................................................................... 2-17 

3. MAINTENANCE & TROUBLESHOOTING ................................................... 3-1 

3.1 Maintenance.............................................................................................................. 3-1 

3.2 Replacement of Fuse, Battery, LCD and Thermal Paper ........................................... 3-2 

3.3 Troubleshooting......................................................................................................... 3-4 

3.4 Diagnostics................................................................................................................ 3-5 

3.5 Restoring All Default Settings .................................................................................... 3-6 

4. INSTALLATION.............................................................................................. 4-1 

4.1 Display Unit............................................................................................................... 4-1 

4.2 Receiver Unit............................................................................................................. 4-3 

4.3 Antenna Unit ............................................................................................................. 4-4 

4.4 Printer (NX-700B only) .............................................................................................. 4-5 

4.5 Wiring........................................................................................................................ 4-5 

4.6 Setting of Printer...................................................................................................... 4-10 

4.7 Digital Interfacing......................................................................................................4-11 

vi

MENU TREE.................................................................................................... AP-1 

SPECIFICATIONS........................................................................................... SP-1 

PACKING LISTS ............................................................................................... A-1 

OUTLINE DRAWINGS ...................................................................................... D-1 

INTERCONNECTION DIAGRAM.......................................................................S-1 

vii

EQUIPMENT LISTS 

Standard Supply 

Name Type Code No. Qty Remarks 

Display Unit 

NX-700A - w/printer 

1 

NX-700B - 

w/o printer 

Receiver Unit NX-7001 - 1 

Antenna Unit NX-7H - 1 

CP08-01810 000-040-180 10 m cable, CP08-01811* 

CP08-01820 000-040-210 20 m cable, CP08-01811* 

CP08-01870 000-040-350 1 30 m cable, CP08-01811* 

CP08-01880 000-040-362 40 m cable, CP08-01811* 

CP08-01890 000-040-363 

50 m cable, CP08-01811* 

Installation 

DSUB25P cable, between 

CP08-01860 000-040-349 1 

Materials 

Display and Receiver Units 

CP08-01863* 004-514-530 1 

For Antenna Unit w/o antenna 

cable 

CP08-01864* 004-514-540 

For Antenna Unit w/ antenna 

cable. 

CP08-01861* 004-514-350 1 For Display Unit 

Spare Parts SP08-02101* 004-514-370 1 Fuse for Receiver Unit* 

Accessories FP08-00800* 000-040-396 1 For NX-700A 

*: See the back of this manual. 

viii

Optional Supply 


Thermal Paper TP058-30CL 000-154-047 1 set For NX-700A 

Flush Mount Kit 

OP08-19 004-514-810 1 For NX-700A 

OP08-20 004-514-820 1 For NX-700B 

AC-DC Power PR-240-CE 000-053-373 1 

000-041-174 1 10 m, w/connector 

000-041-175 1 20 m, w/connector 

OP04-2 

000-041-176 1 30 m, w/connector 

000-041-177 1 40 m, w/connector 

Extension Cable 

000-041-178 1 50 m, w/connector 

005-948-250 1 10 m 

005-948-260 1 20 m 

OP08-12 

005-948-270 1 30 m 

005-948-280 1 40 m 

005-948-290 1 50 m 

000-563-048 1 30 m 

Coaxial Cable RG-10/U-Y 

000-126-000 1 40 m 

000-126-001 1 50 m 

000-152-698 1 3 m 

Cable Assy 

DSUB25P-DSUB25P 

000-152-699 1 5 m 

000-152-700 1 10 m 

000-152-701 1 15 m 

Right Angle Mounting 

For antenna unit NX-7H 

No.13-QA330 000-803-239 1 

Base 

L-Angle Mounting No.13-QA310 000-803-240 

Base 

1 

Handrail Mounting No.13-RC5160 000-806-114 

Base 

1 

Mast Mounting Kit CP20-01111 004-365-780 1 

Display Unit 

NX-700A - 

NX-700B - 

1 

ix

SYSTEM CONFIGURATIONS 

DISPLAY UNIT 

NX-700B 

DISPLAY UNIT 

NX-700A 

ANTENNA UNIT 

NX-7H 

or 

Max. 15 m 

RECEIVER UNIT 

NX-7001 

Max. 100 m 

External Alarm 

Rectifier 

PR-240-CE 

Power supply 

100-115/ 

200-230 VAC. 

1 , 50/60 Hz 

Power supply 

12-24 VDC 

Printer (NX-700B only) 

INS 

(Integrated Navigation System) 

or 

Navigator 

: Standard 

: Option 

: User supply 

Environmental Category 

Antenna unit 

Display unit 

Receiver unit 

To be installed in an exposed area 

To be installed in a protected area 

x

1. PRINCIPLE OF NAVTEX SYSTEM 

1.1 How NAVTEX Works 

NAVTEX is an acronym meaning Navigational Telex, and as its name shows, it is 

a kind of narrow band radio teletype system for sending (by frequency shift 

keying) text messages expressed in a 7-unit code. The difference is that a 

NAVTEX transmitter transmits nine control characters (header code) ahead of 

the main message, so that the receiver can identify the station, message type 

and serial number automatically. 

1.2 NAVTEX System Operation 

For navigation purposes, the world is divided into 16 areas as shown in the 

figure below. Each Navtex station has an identification code, from “A” to “Z”. The 

frequency assigned to Navtex are 518 kHz and another (490 or 4209.5 kHz), 

and many stations exist in the same service coverage. 

If the stations were to transmit without any rule, the system would collapse due 

to mutual interference. To avoid this problem, the following rules apply. 

• The transmission schedule is determined so that two or more stations having 

a common service area may not overlap in time. 

• Each station transmits with minimum required power to cover its service area 

(200 to 400 nautical miles nominal). 

1-1


1.3 Message Format 

For automatic identification of messages, each message starts with nine control 

characters, called “Header codes”. 

The first five characters are always “ZCZC_“ and common to all messages. This 

part is used for message synchronization. The latter four characters are 

designed as B1, B2, B3 and B4 indicate origin, category and serial number of 

the message. 

Character B1 is the identification letter of the Navtex station “A” thru “Z”. 

Character B2 indicates the type of message. “A” thru “Z”, as listed below. 

Character B3 and B4 indicate the serial number of the message. The serial 

numbers are counted up from “01” to “99”, and starts from “01” again. Number 

“00” is specially reserved for important emergency messages. 

The end of each message is indicated by “NNNN” (four successive N’s). 

General message format is summarized below. 

Header code 

ZCZC B1 B2 B3 B4 main message NNNN 

Start code 

(sync) 

Main message 

Serial number 

"00": Emergency message 

"01" - "99": Normal message 

Termination code 

Type of message 

"A" - "Z" 

(See the list below.) 

Station ID 

"A" - "Z" 

[Type of message (category)] 

A: Navigational warning I: Spare 

B: Meteorological warning J: SATNAV message 

C: Ice report K: Other electronic navigational aid 

system message 

D: Search and rescue information/pirate 

attack warnings 

E: Meteorological forecast 

F: Pilot message 

L: Navigational warning (addition to 

“A”) 

V to Y Special services allocation by the 

NAVTEX Co-ordinating Panel 

G: AIS 

H: LORAN message Z: QRU (no message on hand) 

1-2


1.4 NAVTEX Station Map 

1-3


1.5 NAVTEX Station List 

NAV 

area 

Country Station Latitude Longitude 

Freq. 

(kHz) 

Area 

(nm) 

Station 

ID 

Broadcast schedule (UTC) 

I Belgium Oostende 51 11 N 02 48 E 518 55 T 0310, 0710, 1110, 1510, 1910, 2310 

Estonia Tallinn 59 30 N 24 30 E 518 250 U 0320, 0720, 1120, 1520, 1920, 2320 

Iceland Reykjavik Radio 64 05 N 21 51 W 

518 550 R 0250, 0650, 1050, 1450, 1850, 2250 

490 550 R 0318, 0718, 1118, 1518, 1918, 2318 

Ireland Valentia 51 27 N 09 49 W 518 400 W 0340, 0740, 1140, 1540, 1940, 2340 

Malin Head 55 22 N 07 21 W 518 400 Q 0240, 0640, 1040, 1440, 1840, 2240 

France Niton 50 35 N 01 18 W 518 270 K 0140, 0540, 0940, 1340, 1740, 2140 

Netherlands Den Helder 52 06 N 04 15 E 518 110 P 0230, 0630, 1030, 1430, 1830, 2230 

Norway Bodo Radio 67 16 N 14 23 E 518 450 B 0010, 0410, 0810, 1210, 1610, 2010 

Rogaland Radio 58 48 N 05 34 E 518 450 L 0150, 0550, 0950, 1350, 1750, 2150 

Vardoe Radio 70 22 N 31 06 E 518 450 V 0330, 0730, 1130, 1530, 1930, 2330 

Svalbard 78 04 N 13 38 E 518 450 A 0000, 0400, 0800, 1200, 1600, 2000 

Orlandet 63 40 N 09 33 E 518 450 N 0210, 0610, 1010, 1410, 1810, 2210 

Sweden Bjuroklubb 64 28 N 21 36 E 518 300 H 0110, 0510, 0910, 1310, 1710, 2110 

Gislovshammar 55 29 N 14 19 E 518 300 J 0130, 0530, 0930, 1330, 1730, 2130 

Grimeton 57 06 N 12 23 E 518 300 D 0030, 0430, 0830, 1230, 1630, 2030 

United 

Kingdom 

Cullercoats 55 02 N 01 26 W 

Portpatrick 54 51 N 05 07 W 

Niton 50 35 N 01 18 W 

518 270 G 0100, 0500, 0900, 1300, 1700, 2100 

490 270 U 0320, 0720, 1120, 1520, 1920, 2320 

518 270 O 0220, 0620, 1020, 1420, 1820, 2220 

490 270 C 0020, 0420, 0820, 1220, 1620, 2020 

518 270 E 0040, 0440, 0840, 1240, 1640, 2040 

490 270 I 0120, 0520, 0920, 1320, 1720, 2120 

Oostende 51 11 N 02 48 E 518 150 M 0200, 0600, 1000, 1400, 1800, 2200 

II France Cross Corsen 48 28 N 05 03 W 

518 300 A 0000, 0400, 0800, 1200, 1600, 2000 

490 300 E 0040, 0440, 0840, 1240, 1640, 2040 

Niton 50 35 N 01 18 W 490 270 T 0310, 0710, 1110, 1510, 1910, 2310 

Portugal Horta 38 32 N 28 38 W 518 640 F 0050, 0450, 0850, 1250, 1650, 2050 

Monsanto 38 44 N 09 11 W 

518 530 R 0250, 0650, 1050, 1450, 1850, 2250 

490 530 G 0100, 0500, 0900, 1300, 1700, 2100 

Spain Coruna 43 21 N 08 27 W 518 400 D 0030, 0430, 0830, 1230, 1630, 2030 

Tarifa 36 01 N 05 34 W 518 400 G 0100, 0500, 0900, 1300, 1700, 2100 

Las Palmas 28 10 N 15 25 W 518 400 I 0120, 0520, 0920, 1320, 1720, 2120 

(Continued on next page) 

1-4


 

NAV 

area 


Freq. 

(kHz) 

Area 

(nm) 

Station 

ID 


III Bulgaria Varna 43 04 N 27 46 E 518 350 J 0130, 0530, 0930, 1330, 1730, 2130 

Croatia Split radio 43 30 N 16 29 E 518 85 Q 0240, 0640, 1040, 1440, 1840, 2240 

Cyprus Cypradio 35 03 N 33 17 E 518 200 M 0200, 0600, 1000, 1400, 1800, 2200 

Egypt Alexandria 31 12 N 29 52 E 518 350 N 0210, 0610, 1010, 1410, 1810, 2210 

Serapeum 30 28 N 32 22 E 4209.5 400 X 0750, 1150 

France Toulon 43 06 N 05 59 E 

518 250 W 0340, 0740, 1340, 1540, 1940, 2340 

490 250 S 0300, 0700, 1100, 1500, 1900, 2300 

Greece Iraklion 35 20 N 25 07 E 518 280 H 0110, 0510, 0910, 1310, 1710, 2110 

Kerkyra 39 37 N 19 55 E 518 280 K 0140, 0540, 0940, 1340, 1740, 2140 

Limnos 39 52 N 25 04 E 518 280 L 0150, 0550, 0950, 1350, 1750, 2150 

Israel Haifa 32 49 N 35 00 E 518 200 P 0020, 0420, 0820, 1220, 1620, 2020 

Italy Roma 41 48 N 12 31 E 518 320 R 0250, 0650, 1050, 1450, 1850, 2250 

Augusta 37 14 N 15 14 E 518 320 V 0330, 0730, 1130, 1530, 1930, 2330 

Cagliari 39 14 N 09 14 E 518 320 T 0310, 0710, 1110, 1510, 1910, 2310 

Trieste 45 41 N 13 46 E 518 320 U 0320, 0720, 1120, 1520, 1920, 2320 

Malta Malta 35 49 N 14 32 E 518 400 O 0220, 0620, 1020, 1420, 1820, 2220 

Russian 

Federation 

Novorossiysk 44 42 N 37 44 E 518 300 A 0300, 0700, 1100, 1500, 1900, 2300 

Spain Cabo de la Nao 38 43 N 00 09 E 518 300 X 0350, 0750, 1150, 1550, 1950, 2350 

Turkey Istanbul 41 04 N 28 57 E 518 300 D 0030, 0430, 0830, 1230, 1630, 2030 

Samsun 41 17 N 36 20 E 518 300 E 0040, 0440, 0840, 1240, 1640, 2040 

Antalya 36 53 N 30 42 E 518 300 F 0050, 0450, 0850, 1250, 1650, 2050 

Izmir 38 22 N 26 36 E 518 300 I 0120, 0520, 0920, 1320, 1720, 2120 

Ukraine Mariupol 47 06 N 37 33 E 518 280 B 0100, 0500, 0900, 1300, 1700, 2100 

Odessa 46 29 N 30 44 E 518 280 C 0230, 0630, 1030, 1430, 1830, 2230 

IV 

Bermuda 

(UK) 

Bermuda 32 23 N 64 41 W 518 280 B 0010, 0410, 0810, 1210, 1610, 2010 

Canada Riviere-au-Renard 50 11 N 66 07 W 518 300 

C 

D 

0020, 0420, 0820, 1220, 1620, 2020 

0035, 0435, 0835, 1235, 1635, 2035 

Wiarton 44 20 N 81 10 W 518 300 H 0110, 0510, 0910, 1310, 1710, 2110 

St. Johns 47 30 N 52 40 W 518 300 O 0220, 0620, 1020, 1420, 1820, 2220 

Thunder Bay 48 25 N 89 20 W 518 300 P 0230, 0630, 1030, 1430, 1830, 2230 

Sydney, NS 46 10 N 60 00 W 518 300 

Yarmouth 43 45 N 66 10 W 518 300 

 

Q 

J 

U 

V 

0240, 0640, 1040, 1440, 1840, 2240 

0255, 0655, 1055, 1455, 1855, 2255 

0320, 0720, 1120, 1520, 1920, 2320 

0335, 0735, 1135, 1535, 1935, 2335 


1-5


 

NAV 

area 


Freq. 

(kHz) 

Area 

(nm) 

Station 

ID 


IV Canada Labrador 53 42 N 57 01 W 518 300 X 0350, 0750, 1150, 1550, 1950, 2350 

Iqaluit, NU 63 43 N 68 33 W 

518 300 T 0310, 0710, 1110, 1510, 1910, 2310 

490 300 S 0300, 0700, 1100, 1500, 1900, 2300 

United States Miami 25 37 N 80 23 W 518 240 A 0000, 0400, 0800, 1200, 1600, 2000 

Boston 41 43 N 70 30 W 518 200 F 0445, 0845, 1245, 1645, 2045, 0045 

New Orleans 29 53 N 89 57 W 518 200 G 0300, 0700, 1100, 1500, 1900, 2300 

Portsmouth 36 43 N 76 00 W 518 280 N 0130, 0530, 0930, 1330, 1730, 2130 

Isabella 18 28 N 67 04 W 518 200 R 0200, 0600, 1000, 1400, 1800, 2200 

Savannah, GA 32 08 N 81 42 W 518 200 E 0040, 0440, 0840, 1240, 1640, 2040 

Netherlands 

Antilles 

Curacao 12 10 N 68 52 W 518 400 H 0110, 0510, 0910, 1310, 1710, 2110 

V 

NIL 

VI Argentina Ushaia 54 48 S 68 18 W 518 280 M 0200, 0600, 1000, 1400, 1800, 2200 

Rio Gallegos 51 37 S 65 03 W 518 280 N 0210, 0610, 1010, 1410, 1810, 2210 

Comodoro 

Rivadavia 

45 51 S 67 25 W 518 280 O 0220, 0620, 1020, 1420, 1820, 2220 

Bahia Blanca 38 43 S 62 06 W 518 280 P 0230, 0630, 1030, 1430, 1830, 2230 

Mar del Plata 38 03 S 57 32 W 518 280 Q 0240, 0640, 1040, 1440, 1840, 2240 

Buenos Aires 34 36 S 58 22 W 518 560 R 0250, 0650, 1050, 1450, 1850, 2250 

Uruguay La Paloma 34 40 S 54 09 W 

518 280 F 0050, 0450, 0850, 1250, 1650, 2050 

490 280 A 0000, 0400, 0800, 1200, 1600, 2000 

VII Namibia Walvis Bay 23 03 S 14 37 E 518 378 B 0010, 0410, 0810, 1210, 1610, 2010 

South Africa Cape Town 33 40 S 18 43 E 518 500 C 0020, 0420, 0820, 1220, 1620, 2020 

Port Elizabeth 34 02 S 25 33 E 518 500 I 0120, 0520, 0920, 1320, 1720, 2120 

Durban 30 00 S 31 30 E 518 500 O 0220, 0620, 1020, 1420, 1820, 2220 

VIII India Mumbay 19 05 N 72 50 E 518 250 G 0100, 0500, 0900, 1300, 1700, 2100 

Madras 13 08 N 80 10 E 518 400 P 0230, 0630, 1030, 1430, 1830, 2230 

Mauritius Mauritius Radio 20 10 S 57 28 E 518 400 C 0020, 0420, 0820, 1220, 1620, 2020 

IX Bahrain Hamala 26 09 N 50 28 E 518 300 B 0010, 0410, 0810, 1210, 1610, 2010 

Egypt Serapeum 30 28 N 32 22 E 

518 200 X 0350, 0750, 1150, 1550, 1950, 2350 

4209.5 200 X 0750, 1150 

Kosseir 26 06 N 34 17 E 518 400 V 0330, 0730, 1130, 1530, 1930, 2330 

Iran Bushehr 28 59 N 50 50 E 518 300 A 0000, 0400, 0800, 1200, 1600, 2000 

Bandar Abbas 27 07 N 56 04 E 518 300 F 0050, 0450, 0850, 1250, 1650, 2050 


1-6


NAV 

area 


Freq. 

(kHz) 

Area 

(nm) 

Station 

ID 


IX Saudi Arabia Jeddah 21 23 N 39 10 E 518 390 H 0705, 1305, 1905 

Oman Muscat 23 36 N 58 30 E 518 270 M 0200, 0600, 1000, 1400, 1800, 2200 

Pakistan Karachi 24 51 N 67 03 E 518 400 P 0230, 0630, 1030, 1430, 1830, 2230 

X 

NIL 

XI China Sanya 18 14 N 109 30 E 518 250 M 0200, 0600, 1000, 1400, 2200 

Guangzhou 23 08 N 113 32 E 518 250 N 0210, 0610, 1010, 1410, 2210 

Fuzhou 26 01 N 119 18 E 518 250 O 0220, 0620, 1020, 1420, 2220 

Shanghai 31 08 N 121 33 E 518 250 Q 0240, 0640, 1040, 1440, 2240 

Dalian 38 52 N 121 31 E 518 250 R 0250, 0650, 1050, 1450, 2250 

Indonesia Jayapura 02 31 S 140 43 E 518 300 A 0000, 0400, 0800, 1200, 1600, 2000 

Ambon 03 42 S 128 12 E 518 300 B 0010, 0410, 0810, 1210, 1610, 2010 

Makassar 05 06 S 119 26 E 518 300 D 0030, 0430, 0830, 1230, 1830, 2030 

Jakarta 06 06 S 106 54 E 518 300 E 0040, 0440, 0840, 1240, 1640, 2040 

Japan Otaru 43 19 N 140 27 E 518 400 J 0130, 0530, 0930, 1330, 1730, 2130 

Kushiro 42 57 N 144 36 E 518 400 K 0140, 0540, 0940, 1340, 1740, 2140 

Yokohama 35 14 N 139 55 E 518 400 I 0120, 0520, 0920, 1320, 1720, 2120 

Moji 34 01 N 130 56 E 518 400 H 0110, 0510, 0910, 1310, 1710, 2110 

Naha 26 05 N 127 40 E 518 400 G 0100, 0500, 0900, 1300, 1700, 2100 

Korea, 

Republic of 

Chukpyong 37 03 N 129 26 E 

Pyongsan 35 36 N 126 29 E 

518 200 V 0330, 0730, 1130, 1530, 1930, 2330 

490 200 J 0130, 0530, 0930, 1330, 1730, 2130 

518 200 W 0340, 0740, 1340, 1540, 1940, 2340 

490 200 K 0140, 0540, 0940, 1340, 1740, 2140 

Malaysia Penang 05 26 N 100 24 E 518 350 U 0320, 0720, 1120, 1520, 1920, 2320 

Miri 04 28 N 114 01 E 518 350 T 0310, 0710, 1110, 1510, 1910, 2310 

Sandakan 05 54 N 118 00 E 518 350 S 0300, 0700, 1100, 1500, 1900, 2300 

Singapore Singapore 01 25 N 103 52 E 518 400 C 

0020-0030, 0420-0430, 0820-0830, 

1220-1230, 1620-1630, 2020-2030 

Thailand Bangkok Radio 13 43 N 100 34 E 518 200 F 0050, 0450, 0850, 1250 

United States Guam 13 29 N 144 50 E 518 100 V 0100, 0500, 0900, 1300, 1700, 2100 


1-7


 

NAV 

area 


Freq. 

(kHz) 

Area 

(nm) 

Station 

ID 


XI Vietnam Ho Chi Minh City 10 47 N 106 40 E 518 400 X 0350, 0750, 1150, 1550, 1950, 2350 

Haiphong 20 44 N 106 44 E 

490 400 W 0340, 1540 

4209.5 400 W 0230, 0630, 1030, 1430, 1830, 2230 

Danang 16 05 N 108 13 E 518 400 K 0140, 0540, 0940, 1340, 1740, 2140 

Taiwan Kaohsiung 22 29 N 120 25 E 518 216 P 0230, 0630, 1030, 1430, 1830, 2230 

Associate 

Member of IMO 

Hong Kong 22 13 N 114 15 E 518 400 L 0150, 0550, 0950, 1350, 1750, 2150 

XII Canada Prince Rupert 54 20 N 130 20 W 518 300 D 0030, 0430, 0830, 1230, 1630, 2030 

Tofino 48 55 N 125 35 W 518 300 H 0110, 0510, 0910, 1310, 1710, 2110 

United States San Francisco 37 55 N 122 44 W 518 350 C 0400, 0800, 1200, 1600, 2000, 2400 

Kodiak 57 46 N 152 34 W 518 200 J 0300, 0700, 1100, 1500, 1900, 2300 

Honolulu 21 22 N 158 09 W 518 350 O 0040, 0440, 0840, 1240, 1640, 2040 

Cambria 35 31 N 121 03 W 518 350 Q 0445, 0845, 1245, 1645, 2045, 0045 

Astoria 46 10 N 123 49 W 518 216 W 0130, 0530, 0930, 1330, 1730, 2130 

XIII 

Russian 

Federation 

Kholmsk 47 02 N 142 03 E 518 300 B 0010, 0410, 0810, 1210, 1610, 2010 

Murmansk 68 46 N 32 58 E 518 300 C 0020, 0420, 0820, 1220, 1620, 2020 

Arkhangelsk 64 51 N 40 17 E 518 300 F 0050, 0450, 0850, 1250, 1650, 2050 

Astrakhan 45 47 N 47 33 E 518 250 W 0340, 0740, 1140, 1540, 1940, 2340 

XIV 

NIL 

XV Chile Antofagasta 23 40 S 70 25 W 518 300 

A 

H 

0400, 1200, 2000 

0000, 0800, 1600 

Valparaiso 32 48 S 71 29 W 518 300 

B 

I 

0410, 1210, 2010 

0010, 0810, 1610 

Talcahuano 36 42 S 73 06 W 518 300 

C 

J 

0420, 1220, 2020 

0020, 0820, 1620 

Puerto Montt 41 30 S 72 58 W 518 300 

D 

K 

0430, 1230, 2030 

0030, 0830, 1630 

Punta Arenas 53 09 S 70 58 W 518 300 

E 

L 

0440, 1240, 2040 

0040, 0840, 1640 

Isla de Pascua 27 09 S 109 25 W 518 300 

F 

G 

0450, 1250, 2050 

0050, 0850, 1650 

XVI Peru Paita 05 05 S 81 07 W 518 200 S 0300, 0700, 1100, 1500, 1900, 2300 

Callao 12 03 S 77 09 W 518 200 U 0320, 0720, 1120, 1520, 1920, 2320 

Mollendo 17 01 S 72 01 W 518 200 W 0340, 0740, 1140, 1540, 1940, 2340 

Note: The list shows the stations listed at Longwave Navtex Broadcasts (Oct. 2004). 

1-8

2. OPERATION 

2.1 Operating Controls 

Registers items on menus. 

Cursor pad 

-Shifts the cursor and display. 

-Selects items on menus. 

ENT 

MENU 

ESC 

Opens menu/Returns to the previous display. 

DIM 

LIST 

PRINT 

Opens the LIST options. 

Opens the PRINT options. 

Turns the power on/off. 

Adjusts the panel and LCD dimmer. 

+: Raises the setting. 

- : Decreases the setting. 

2.2 Turning the Unit On/Off 

Display unit, front view 

Press the key to turn the unit on. A beep sounds and the equipment shows 

the start up display, where the ROM and RAM are checked for proper operation 

and the program no. is displayed. The results of the check are shown as OK or 

NG (No Good). 

When the results are OK, the list display is shown after five seconds after 

completion of the check, with frequency last used before turning the power off. 

DUAL CHANNEL NAVTEX 

NX-700 

FURUNO ELECTRIC CO., LTD. 

ROM : OK RAM : OK 

Program No. 0850193-XX 

XX: Program version No. 

2-1

2. OPERATION 

At the default setting, the equipment functions as below; 

When the results of the check are OK, ALL MESSAGE display for 518 kHz 

appears. This screen shows all messages received in 518 kHz. 

You can switch 518 kHz (International message) and 490 kHz (local message) to 

display. The NX-700A is preset to print all received message out. 

All message display (518 kHz) 

Note 1: To display all received messages in 490 kHz, press ◄ or ►. 

Note 2: To cancel the printing all received messages out, see page 2-11. 

To turn the power off, press the 

key again. 

Note: If NG appears for any test, try to press any key to go to the next stage. 

The equipment, however, may not be operated properly. Contact your 

dealer if the problem persists. 

2.3 Adjusting LCD Dimmer 

You can adjust LCD and panel dimmer with the + DIM – key. The adjustment 

range is 0 (dark) to 9 (bright). 

+: Raises the dimmer. 

-: Decreases the dimmer. 

2-2

2. OPERATION 

2.4 Confirming the New Message 

When you receive a new message, do one of the following depending on 

message received. 

SAR (Search and Rescue) message 

1. When an SAR message is received, the audible alert sounds and details for 

the SAR message appear. 

Icon for SAR message 

2. Press any key other than key to silence the alarm. 

Other messages 

1. When a message other than an SAR message is received, the display shows 

one of the following windows. 

Received new int'l msg. 

Received new local msg. 

Display new msg ? 

Yes No 

International message 

Display new msg ? 

Yes No 

Local message 

2. If you want to read the message immediately, press ◄ to choose “Yes” and 

then press the ENT key to display the message 

To read the message later, choose “No”, and then press the ENT key to 

close the window. 

2-3

2. OPERATION 

2.5 Sample Messages 

Press ▲ or ▼ on the cursor pad to choose a message, and then press the ENT 

key to show the detailed information for that message. The message list and 

detailed message displays can be switched by pressing the ENT key. 

Category of messages 

(paragraph 2.11) 

New 

Frequency (paragraph 2.9) 

Status icon (paragraph 2.14) 

No. of saved messages 

Receiving 

date 

Station ID, type of message, 

serial No. (two digits, paragraph 1.3) 

Error rate 

ENT key 

Old 

Operation guide 

Message icon (paragraph 2.14) 

Message list 

Detailed message 

Note 1: The operation guide at the bottom of screen shows the functions of the 

keys available for use with the current screen. 

Note 2: The character size can be changed. For detail, see page 2-18. 

Key Display mode Function 

▲▼ 

List 

Scrolls the list. 

Detailed Scrolls the message. 

◄► 

List 

Switches the international and local lists. 

Detailed Shows the newer (◄) or older (►) message. 

MENU 

List 

Detailed 

Shows the main menu. 

ENT 

List 

Shows the detailed message selected. 

Detailed Shows the message list. 

LIST 

List 

Detailed 

Shows the list options. 

PRINT 

List 

Detailed 

Shows the print options. 

2-4

2.6 Choosing the Receive Mode 

2. OPERATION 

The NAVTEX menu allows you to select what station to receive, automatically, 

manually. The Auto mode requires navigation data, and stations are 

automatically selected according to the distance between own ship and NAVTEX 

stations. If navigation data is not input, all stations are selected. The manual 

mode lets you freely stations to receive. The INS mode allows you to set the 

station, message and local channel from the external equipment (ex. Integrated 

Navigation System, using NMK sentence) connected. 

1. Press the MENU/ESC key to show the main menu. 

Menu 

NAVTEX 

System 

Display 

Service 

Main menu 

2. Press ▲ or ▼ to choose NAVTEX. 

3. Press the ENT key or ► to open the NAVTEX menu. 


Receive Mode Manual 

Local Channel 490kHz 

Auto Print All 

Rcv Station & Msg 

User Select Station & Msg 

NAVTEX menu 

4. Press ▲ or ▼ to choose Receive Mode, and then press the ENT key or ► to 

show the receive mode options. 

INS 

Auto 

Manual 

Receive mode options 

5. Press ▲ or ▼ to choose INS, Auto or Manual as appropriate, and then press 

the ENT key. 

6. Press the MENU/ESC key several times to close the menu. 

2-5

2. OPERATION 

2.7 Choosing the Local Frequency 

You can choose 490 kHz or 4209.5 kHz as the local frequency. This function is 

only available for the Auto and Manual modes. (See paragraph 2.6.) 


2. Press ▲ or ▼ to choose NAVTEX, and then press the ENT key or ►. 

3. Press ▲ or ▼ to choose Local Channel, and then press the ENT key or ► to 

show the local channel options. 

490kHz 

4209.5kHz 

Local channel options 

4. Press ▲ or ▼ to choose the frequency 490 kHz or 4209.5 kHz, and then 

press the ENT key. 


2.8 Editing the Settings for Station and Message 

Stations and messages for receiving/displaying on each station (message) can 

be edited as below. 


Station 

You can receive messages by station when Manual is chosen as the Receive 

Mode on the NAVTEX menu. 

Message 

You can choose the messages to receive when Manual or Auto is chosen as the 

Receive Mode on the NAVTEX menu. Note that A/B/D/L cannot be rejected. 


Station 

Choose the station to display on User Selected Messages, which is shown when 

the LIST key is pressed. 

Message 

Choose the type of message to display on User Selected Messages, which is 

shown when the LIST key is pressed. 

Note 1: For messages, the alarm message is displayed always. 

Note 2: When User Select is chosen as the Auto Print on NAVTEX menu, only 

the messages chosen here are printed. (See paragraph 2-11.) 


2. Press ▲ or ▼ to choose NAVTEX, and then press the ENT key. 

2-6

2. OPERATION 

3. Press ▲ or ▼ to choose “Rcv Station & Msg” or “User Select Station & Msg”. 

4. Press the ENT key to open the appropriate editing window. (Below is the Rcv 

Station & Msg editing window.) 

Recieve mode 

Internaitional frequency 

Station 

Message 

Local frequency* 

Changeable item 

Rcv Station & Msg [Auto] 

[518] 

Station 

ABCDEFGHIJKLMNOPQRSTUVWXYZ 

Message 


[490] 

Station 


Message 


[ ][ ] MOVE 

[ENT] EDIT 

[MENU] RETURN TO MENU 

*: Local channel selected at Paragraph 2.7. 

Edit window (ex. Rcv Station & Msg) 

5. Press ▲ or ▼ to choose the item to edit, and then press the ENT key to 

show the alphabet selection window. 


Cursor 

6. Press ◄ or ► to choose the alphabet desired, and then press ▲ or ▼ to 

choose to receive or not. 

The alphabet you have chosen not to receive is marked with “-“ (hyphen). 

7. Press the ENT key 

8. Repeat steps 5 through 7 to complete. 

9. Press the MENU/ESC key to close the window. 

2-7

2. OPERATION 

2.9 Switching the Frequency to Display 

With showing the message list, you can switch the frequency to 518 kHz or 490 

(or 4209.5) kHz by pressing ◄ or ► key. 

Press 

518 490 (4209) 

2.10 Alarm Messages 

Switching the frequency to display 

The sequence of events when an alarm message is received is as shown below. 

When receiving SAR (Search and Rescue) message: 

The audible alarm beep sounds, and the SAR message is shown. Note that All 

Messages list appears if other list option is chosen when the ENT key is pressed. 

(See paragraph 2.11.) 

When receiving WARNING message (A/B/L): 

When the Warn Msg Alm on System menu is set to On, the audible alarm 

sounds and the message for receiving appears. 

Silencing audible alarm 

Press any key (except 

key). 

2-8

2. OPERATION 

2.11 Processing Messages 

Choosing messages to display 

You can choose which category of messages to display: All, Alarm, User 

Selected and Good messages. 

1. With the message list or detailed message shown, press the LIST key to 

show the list options. 

All Messages 

Alarm Messages 

User Messages 

Good Messages 

Lock Message 

List options 

2. Press ▲ or ▼ to choose the item. 

All Messages: Shows all messages received. 

Alarm Messages: Shows only SAR/WARNING messages. 

User Selected Messages: Shows messages arranged at User Select Station & 

Msg on NAVTEX menu. 

Good Messages: Shows messages whose error rate is less than 4%. 

3. Press the ENT key to close the window. 

The list chosen at step 2 appears. 

Note: When the following messages appear, set the List window to All Messages 

to show. 

Urgent message: 

“Message not chosen for display received; it is a int’l (or local) 00 message. 

Choose “All Message” (LIST menu) to display.” 

Normal message: 

Int’l (or local) message not chosen for display received. Choose “All 

Message” (LIST menu) to display.” 

2-9

2. OPERATION 

Protecting message from deleting 

Messages are automatically deleted from the memory under the following 

conditions. 

-66 hours passed from the moment when received. 

-Older than No. 200 

To prevent a message from being deleted, do the follows; 

1. Choose the message at the list display. 

2. Press the LIST key to show the list options. 

All Messages 


User Messages 

Good Messages 

Lock Message 

List options 

3. Choose Lock Message from the list window. 

The protect icon ( ) appears next to the message selected. 

Note 1: To unlock a message, choose it and then select Unlock Message in the 

list window. (The protect icon disappears.) 

Note 2: When you unlock a message which was received 66 hours ago or a 

message that is older than No. 200, it will be deleted promptly when 

unlocked. 

Note 3: Maximum each 50 messages for International and local (or 25% of each 

memory) can be protected. 

2.12 Printing Messages 

Received messages can be printed automatically or manually, from the built-in 

printer (NX-700A) or external printer (NX-700B). 

Printing all messages displayed 

All messages chosen on paragraph 2.11 can be printed out. 

1. Press the PRINT key with showing all messages. 

Print 

Cancel Print 

Print options 

2. Press ▲ or ▼ to choose “Print”. 

3. Press the ENT key to print. 

2-10 

Note: When a message is received while printing some messages, the new one 

cannot be printed.

2. OPERATION 

Printing each message 

1. Press ▲ or ▼ to choose the desired message from the list. 

2. Press the ENT key to show the detailed information. 

3. Press the PRINT key. 

4. Press ▲or ▼ to choose “Print” from the window. 

5. Press the ENT key to print. 

Printing messages automatically 

When receiving a message, it can be printed out immediately. 

1. Press the MENU/ESC key to open the main menu. 

2. Press ▲ or ▼ to choose NAVTEX, and then press the ENT key to show the 

NAVTEX menu. 

3. Press ▲ or ▼ to choose Auto Print, and then press the ENT key to open the 

auto print options. 

Off 

All 

User Select 

Auto print options 

4. Press ▲ or ▼ to choose All, User Select or Off as appropriate. 

All: Prints all messages when receiving. 

User Select: Prints only the specified messages at User Select Station & Msg 

on the NAVTEX menu when receving. 

Off: All messages are not printed automatically. 

5. Press the ENT key. 

6. Pres the MENU/ESC key several times to close the menu. 

Canceling printing 

When a menu is displayed, you cannot cancel the printing. 

1. Press the PRINT key while showing the messages to open the print window. 

2. Press ▼ to choose “Cancel Print” and then press the ENT key. 

2-11

2. OPERATION 

2.13 Editing the NAVTEX Station List 

Maximum 300 NAVTEX stations can be registered into the memory. 

Note: To cancel editing of a NAVTEX station, press the MENU/ESC key. The 

message “Exit without saving?” appears. Choose “Yes”, and then press 

ENT key. 

Adding NAVTEX station 

You may add a NAVTEX station to the NAVTEX station list as follows: 


2. Press ▲ or ▼ to choose Service, and then press the ENT key. 

Service 

INS Input Speed 

INS Output Speed 

Print Header 

Edit Station List 

Default Setting 

Test 

Rcv Monitor 

4800bps 

4800bps 

On 

Service menu 

3. Press ▲ or ▼ to choose Edit Station List, and then press the ENT key. 

Frequency 

NAV Area 

Station name 

518kHz 

NavArea 01 

[ New ] 

Oostende T, - , - 

Tallinn U, - , - 

Reykjavik Radio R, - , - 

Valentia W,- , - 

Malin Head Q, - , - 

Niton K, - , - 

Den Helder P, - , - 

Bodo Radio B, - , - 

Rogaland Radio L, - , - 

Vardoe Radio V, - , - 

Svalbard A, - , - 

[ ][ ] CHANGE NAVAREA 

[LIST] CHANGE FREQ 

[ENT] EDIT [MENU] RETURN TO MENU 

Edit station list display 

4. Confirm that New is chosen, and then press the ENT key to show the 

addition window appears. 

2-12

2. OPERATION 

NAV Area 

Station Name 

Latitude 

Longitude 

Station ID 

Sertvice Area 

NavArea 1 

Station 

Latitude 0 00'N 

Longitude 0 00'E 

518kHz ID1: - ID2: - ID3: - 

490kHz ID1: - ID2: - ID3: - 

4209.5kHz ID1: - ID2: - ID3: - 

Range 400nm 

Save data ? 

New addition window 

5. Confirm that NavArea is chosen, and then press the ENT key to show the 

area No. window. 

6. Press ▲ or ▼ to choose a Nav area No. (1 to 16, and EXT), and then press 

the ENT key. 

For NAV area No., see paragraph 1.4. EXT is reserved for future use. 

7. Confirm that Station is chosen, and then press ENT key. 

8. Enter a station name (Max. 18 characters), and then press the ENT key. 

a) Press ▲ or ▼ to choose a character. Each press of ▲ shows A -> … -> Z -> 

a -> … -> z -> 0 -> … -> 9 -> _ -> - -> space in that sequence. 

b) Press ► to move the cursor to next digit. 

c) Repeat steps a) and b) to complete the station name. 

9. Confirm that Latitude is chosen, and then press the ENT key. 

10. Enter the latitude for station, and then press the ENT key. 

Use ▲ or ▼ to switch to North and South. 

11. Confirm that Longitude is chosen, and then press the ENT key. 

12. Enter the longitude for station, and then pres the ENT key. 

Use ▲ or ▼ to switch to East and West. 

13. Choose 518kHz, 490kHz or 4209.5kHz, and then press the ENT key. 

14. Enter the station ID (A to Z), and then press the ENT key. 

For multiple stations, fill in ID2 and ID3. 

15. Confirm that Range is chosen, and then press the ENT key. 

16. Enter the service area (1 to 999 nm), and then press the ENT key. 

17. Confirm that Save data? is chosen, and then press the ENT key. 

The message “Save new station?” appears. 

18. Press ◄ to choose “Yes”, and then press ENT key to close the new addition 

window disappears. 

Note: If the station ID was not entered at step 14, the message “Enter ID 

data.” appears. Press any key, and then enter the station ID. 

19. To enter another NAVTEX station, repeat steps 4 through 18. 


2-13

2. OPERATION 

Editing NAVTEX station 

Existing NAVTEX station may be edited as follows: 




4. Press ◄ or ► to choose the NAV area to be changed (01 to 16, EXT). 

5. Press the LIST key to choose the frequency to be changed (518kHz, 490kHz 

or 4209.5kHz). 

6. Press ▲ or ▼ to choose the station, and then press the ENT key. 

Edit 

Delete 

7. Press ▲ to choose “Edit”, and then press ENT key to show the edit window 

appears. 

NAV Area 

Station Name 

Latitude 

Longitude 

Station ID 

Service Area 

Oostende 

NavArea 1 

Station Oostende 

Latitude 51 11'N 

Longitude 2 48'E 

518kHz ID1: T ID2: - ID3: - 

490kHz ID1: - ID2: - ID3: - 

4209.5kHz ID1: A ID2: - ID3: - 

Range 55nm 

Save data ? 

Edit window (Ex. NAVTEX station Oostende) 

8. Edit data as appropriate. 

9. Confirm that Save station? is chosen, and then press the ENT key. 

10. Press ◄ to choose “YES”, and then press the ENT key to erase the edit 

window. 


Deleting NAVTEX stations 

You may delete unnecessary NAVTEX stations as follows: 




4. Press ◄ or ► to choose the NAV area to be deleted. (01 to 16, EXT). 

5. Press the LIST key to choose the frequency to be deleted (518kHz, 490kHz 

or 4209.5kHz). 

6. Press ▲ or ▼ to choose the station name to be deleted, and then press ENT 

key. 

The item window appears. 

2-14

2. OPERATION 

2.14 Icons 

Edit 

Delete 

7. Press ▲ or ▼ to choose Delete, and then press the ENT key. 

The message “Delete station?” appears. 

8. Press ◄ to choose “Yes”, and then press the ENT key to close the edit 

window. 


The NX-700 shows various icons to denote equipment status, and these are as 

shown in the table below. 

Icon Status Meaning 

Status icon (shown at the tip of display) 

L1 

L2 

I 

L1 

L2 

X 

Blinking 

Blinking 

Blinking 

Blinking 

Blinking 

Blinking 

Lighting 

Lighting 

Shows that an International frequency (518 kHz) 

message has not been read. 

Shows that a Local frequency message has not 

been read. 

L1: 490 kHz, L2: 4209.5 kHz 

Appears while receiving a message. 

I: International frequency (518 kHz) 

L1: 490 kHz 

L2: 4209.5 kHz 

Displayed when the voltage of the internal battery is 

low. The message “Battery error” also appears on 

the display. 

Print error (no paper, not connected to the printer, 

etc.). The message “Printer error” also appears on 

the display. 

P 

R Lighting While printing. 

Message icon (shown next to messages) 

NEW 

Lighting 

Displayed when message is displayed for the first 

time. 

(This icon disappeared after showing the detail or 24 

hours has passed.) 

SAR Lighting Displayed when message type D (SAR) is displayed. 

!! 

Lighting 

Lighting 

Appears when message type A, B or L (Warning) is 

displayed. 

Protected message 

2-15

2. OPERATION 

2.15 Messages List 

In addition to the message “Received new local (int’l) msg.” the following 

message-related messages may appear on the display. 

Message Meaning Remedy 

New message received. Appears when the oldest 

Oldest message deleted to message is deleted to 

free up memory. 

make space for the latest 

Press any key. 

one. 

Same message with lower 

error rate received. 

Currently displayed 

message will be deleted. 

Term of validity expired. 

Currently displayed 

message will be deleted. 

Message not chosen for 

display received; it is a int’l 

00 message. Choose “All 

Message”(LIST menu) to 

display. 

Message not chosen for 

display received; it is a 

local 00 message. Choose 

“All Message”(LIST menu) 

to display. 

Int’l message not chosen 

for display received. 

Choose “All 


display. 

Local message not chosen 

for display received. 

Choose “All 


display. 

Appears when two 

messages have the 

same ID are received 

and the latter’s error rate 

is lower than the former. 

Appears when 66 hours 

has passed after 

receiving the currently 

displayed message. 

Appears when receiving 

an international message 

not specified for display 

(00) at the SELECT 

MESSAGES display. 


a local message not 

specified for display (00) 

at the SELECT 



an international message 

not specified for display 

(Normal) at the SELECT 



a local message not 

specified for display 

(Normal) at the SELECT 




Press any key, and then 

choose All Message in 

the List window. 

2-16

2.16 Other Functions 

2. OPERATION 

This paragraph describes the various options which allow you to set up your unit 

to suit your needs. 

NAVTEX menu 

Item Description Setting 

Receive Chooses the receiving mode. (See INS, Auto, Manual 

Mode paragraph 2.6.) 

Local Chooses the local channel. 

490kHz, 4209.5kHz 

Channel 

Auto Print Chooses the message to print 

Off, All, User Select 

automatically. (See paragraph 2.12.) 

Rcv Station & Receives messages in the category. 

Msg 

- 

User Select 

Station & 

Msg 

Sets the station and type of message to 

be shown on the SELECT MESSAGES 

display. 

- 

System menu 


Warn Msg Alm 

Turns the audible alarm on/off when receiving a On, Off 

Warning message (A, B, and L). 

Signal Monitor 

Turns the audible alarm for monitoring of Rx 

signal on/off. 

Off: Disables monitoring. 

Off, Int’l, Local 

Int’l: Monitors international frequency. 

Local: Monitors local frequency. 

Key Beep Turns key beep on/off. On, Off 

If a GPS receiver feeds nav data to the NAVTEX, 

Time Offset 

you may use local time instead of UTC time. -13:30 to 

Enter the time difference between local time and +13:30 

UTC time. 

Units 

Chooses units of measurement (distance and 

ship speed) to be shown on the User Display. 

Printer Sets the printer type. (See paragraph 4.6.) 

nm, kt, 

km, km/h, 

mi, mi/h 

None, 

NX-700A, 

Upright, 

Inverted 

2-17

2. OPERATION 

Display menu 


Selects the speed of scrolling by pressing ▲ or ▼. 

Slow: Scrolls by one line. 

Scrolling 

Fast: Scrolls by half of screen. 

Slow, Fast, 

Skips to $$: 

Skip to $$ 

Scrolls line by line in list display; Skips to $$ position in detailed 

display. 

Font Size Selects the size of characters. 

Small, 

Medium, 

Large 

Time Display Selects the time format. 24 hour, 

12 hour 

Selects the date format. 

MMM DD YYY, 

Date Display 

Selects the type of data as user display to be shown at the 

bottom of the display. 

Nav Data 

DD MMM YYYY, 

YYYY MMM DD 

User Display 

Date 

Own ship's 

position 

Ship's speed 

MAY 07 2005 00:00:18 

12 34. 001 ' N 

123 45. 001 ' E 

SOG 1. 6 kt COG 56. 9 

[ ][ ] SCROLL [ ][ ] CHANGE FREQ 

[MENU] MENU [ENT] SHOW MESSAGE 

[LIST] LIST MENU [PRINT] PRINT MENU 

Course 

Off, 

Nav Data, 

Distance 

Distance 

Distance between the positions shown in the message and 

own ship's when receiving. 

Speed 

Display 

DISTANCE 23.4nm 

[ ][ ] SCROLL [ ][ ] CHANGE FREQ 

[MENU] MENU [ENT] SHOW MESSAGE 

[LIST] LIST MENU [PRINT] PRINT MENU 

Selects the speed format to be displayed. 

SOG: Speed Over Ground 

STW: Speed Through Water 

SOG, STW 

Contrast Sets the display contrast. 0 to 9 

2-18

2. OPERATION 

Service menu 


4800, 

INS 

9600, 

Selects the data transmission speed at which to input data 

Input 

19200, 

from INS. 

Speed 

38400 

bps 

INS 

Output 

Speed 

Print 

Header 

Edit 

Station 

List 

Default 

Settings 

Selects the data transmission speed to output data to the INS. 

Turns the header (Own ship’s position, date, frequency, error 

rate and distance information when receiving a message) for 

printing on/off. 

Receiving date 

Own ship's poisition 

when receiving 

518kHz Error Rate: 0.0% 

Received MAY 07 2005 01:12:53 

Position 34 28'N 134 03'E 

Distance 23.4nm 

ZCZC AA10 

Header 

4800, 

9600, 

19200, 

38400 

bps 

On, Off 

Distance between the positions shown in the messasge 

and own ship's when receiving. 

Edits/deletes stations. (See paragraph 2.13.) - 

Restores all default settings. (See paragraph 3.5.) 

Test Starts the diagnostic test. (See paragraph 3.4.) - 

Shows the status for International and Local receiving. 

International 

message 

- 

Rcv 

Monitor 

Local message - 

2-19

2. OPERATION 

This page is intentionally left be blank. 

2-20

3. MAINTENANCE & 

TROUBLESHOOTING 

This chapter provides information necessary for keeping your unit in good 

working order and remedying simple problems. 

3.1 Maintenance 

WARNING 

Do not open the equipment. 

Hazardous voltage which can 

cause electrical shock exists 

inside the equipment. Only 

qualified personnel should 

work inside the equipment. 

Regular maintenance is important for optimum performance. A maintenance 

program should be established and should at least include the items shown in 

the table below. 

Maintenance program 

Item Check point Remedy 

Display unit connectors Check for tight connection. Tighten loosened connectors. 

LCD 

Ground terminal 

The LCD will, in time, 

accumulate a coating of dust 

which tends to dim the picture. 

Wipe LCD lightly with soft 

cloth to remove dust. 

Check for tight connection and 

corrosion. 

Wipe the LCD carefully to 

prevent scratching, using 

tissue paper and an LCD 

cleaner. To remove dirt or salt 

deposits, use an LCD cleaner, 

wiping slowly with tissue 

paper so as to dissolve the dirt 

or salt. Change paper 

frequently so the salt or dirt 

will not scratch the LCD. Do 

not use solvents such as 

thinner, acetone or benzene 

for cleaning. 

Clean or replace ground wire 

as necessary. 

3-1

3. MAINTENANCE & TROUBLESHOOTING 

3.2 Replacement of Fuse, Battery and Thermal 

Paper 

Fuse 

The fuse inside the receiver unit protects the equipment from overcurrent or 

reverse polarity. If the fuse blows, contact your dealer about replacement. 

Name Type Code No. 

Fuse FGMB 2A 125V 000-103-165 

Use the proper fuse. 

WARNING 

Use of a wrong fuse can result in damage 

to the equipment or cause fire. 

Battery 

A battery is installed inside the display unit, and it preserves data when the 

power is turned off. The life of the battery is about 5-10 years, and its voltage is 

checked when the power is turned on. When its voltage is low, the BATTERY 

( ) icon appears on the display to alert you. When this happens, contact your 

dealer to request replacement of the battery. 

Note: When the battery is dead, all default settings are restored. 


BATT CR2450-F2ST2L 000-144-941 

LCD Display 

WARNING 

Ensure battery polarity is correct. 

Wrong polarity may cause the batteries to 

explode. 

The life of the LCD is approx. 20,000 hour. When the LCD has expired, the 

brilliance cannot be raised. 

3-2


Thermal paper (NX-700A only) 

When the thermal paper runs out completely, the message “Printer error” (center 

of screen) and the X icon (at the right-hand top corner) appear. Replace the 

paper as follows. 


Thermal paper TP058-30CL 000-154-047 

1. Turn off the power. 

2. Press the button shown below to open the paper holder cover. 

Eject button 

3. Peel the tape from the end of new paper. 

Tape 

4. Set the new paper in the paper container in the direction shown below. 

Paper holder 

New paper 

Paper holder cover 

5. Pull the end of the paper by 2 to 3 cm (as shown above), and then close the 

cover. 

3-3


3.3 Troubleshooting 

This section provides simple troubleshooting procedures which the user can 

follow to restore normal operation. If you cannot restore normal operation do not 

attempt to check inside the unit. Any trouble should be referred to a qualified 

technician. 

If . . . then . . . 

-ask serviceman to replace the blown 

fuse. 

you cannot turn on the power 

-check battery for proper voltage 

output. 

the equipment receives unwanted confirm that “Manual” is chosen at 

messages. 

Receive Mode on the NAVTEX menu. 

check equipment by the diagnostic 

test. 

check the broadcasting schedule. 

NAVTEX signal cannot be received. check that the D-sub connector is 

firmly fastened. 

check that the antenna cable is firmly 

fastened. 

paper does not advance. (NX-700A only) load paper correctly. 

paper feeds but no recording. (NX-700A check if correct thermal paper is being 

only) 

used. 

paper has darkened. (NX-700A only) 

the recording is not proper for the external 

printer. (NX-700B only) 

keep the paper in a well-ventilated and 

cool place. 

check the setting of Printer on the 

System menu. 

check the printer cable. 

check that the power of printer is 

turned on and status is 

“SELET/READY”. 

check that the printer is available. 

check that paper is set properly. 

3-4

3.4 Diagnostics 


The memory test checks ROM, RAM, data port, battery, keyboard and LCD for 

proper operation and displays program version numbers. 

1. Press the MENU/ESC key to open the main menu. 

2. Press ▼ to choose Service, and then press the ENT key. 

3. Press ▲ or ▼ to choose Test, and then press the ENT key. 

The message “Start test?” appears. 

4. Press ◄ to choose “Yes”, and then press the ENT key. 

Memory Test 

Program No : 0850193-01.* 

Boot : 0850192-01.* 

ROM : OK 

SRAM : OK 

DRAM : OK 

CPU RAM : OK 

EEPROM : OK 

Battery : OK (3.2V) 

Hit any key. 

*: Program version no. 

Memory test 

For any NG (No Good), contact your dealer. 

5. When the message “Hit any key.” appears at the bottom of screen, press any 

key (except key) to show the key test screen. 

Key Test 

If there is no operation for 

10 s, the screen changes. 

Key test 

6. Press each key (except key) one by one. 

A key is functioning properly if its on-screen location fills in black when the key is 

pressed. 

7. After all keys have been tested or no key is pressed after 10 seconds, the 

equipment starts the LCD test by showing the white and black display (level 

0 to 9). 

3-5


8. When the message “Hit any key” appears on the screen, press any key 

(except key) to show the Rx test screen. 

The alarm for receiving monitor sounds while the Rx test is being conducted. 

Also the test message is printed when the item other than “None” at Printer on 

System menu. 

Rx test 

9. When the message “Hit any key.” appears on the screen, press any key 

(except key) or wait for one minute with no operation to finish. 


3.5 Restoring all Default Settings 

This operation restores all default settings. The following two settings, however, 

are not disturbed. 

-Received messages 

-NAVTEX stations list (See paragraph 2.13.) 


2. Press ▼ to choose Service, and then press the ENT key. 

3. Press ▲ or ▼ to choose Default Setting, and then press ENT key. 

The message “Restore default settings?” appears. 

4. Press ◄ to choose “Yes”, and then press the ENT key. 

The Service menu appears. 


3-6

4. INSTALLATION 

4.1 Display Unit 

The display unit can be installed on a tabletop, on the overhead, or in a panel. 

Refer to the outline drawings at the back of this manual for installation 

instructions. When selecting a mounting location, keep in mind the following 

points. 

• Locate the unit away from exhaust pipes and vents. 

• Locate it of direct sunlight, (or in a suitable, ventilated enclosure) to prevent 

heat which can build up inside the cabinet. 

• The mounting location should be well ventilated. 

• Mount the unit where shock and vibration are minimal. 

• Allow sufficient maintenance space at the sides and rear of the unit and leave 

sufficient slack in cables, to facilitate maintenance and servicing. 

• Compass safe distances are: 

NX-700A (Standard: 1.45 m, Steering: 0.95 m) 

NX-700B (Standard: 0.30 m, Steering: 0.30 m) 

Tabletop, overhead mounting 

1. Fix the hanger by using four self-tapping screws (5x20). 

2. Screw knob bolts in display unit, set it to the hanger, and tighten the knob 

bolts. 

Note: For the overhead mounting, reinforce the mounting location for the weight 

of the display unit (NX-700A: 3.3 kg, NX-700B: 0.7 kg) and secure the 

hanger, with bolts, nuts and washers (local supply). 

NX-700A 

NX-700B 

4-1


Flush mounting 

The display unit can be installed flush mounted in a console or panel by using 

the optional flush mount kit. 

. 

(For NX-700A) 

Type: OP08-19 Code No.: 004-514-810 


Mounting metal 08-023-1019 100-326-960 1 

Self-tapping screw 5X20 000-802-081 6 

Hex. bolt M8x15 000-862-144 2 

Spring washer M8 000-864-262 2 

1. Cut out a hole with dimensions as shown below in the mounting location. 

284+0.5 

168+0.5 

30+1 

7 

156+1 

275+1 

7 

4 

Fixing hole 

2. Attach the fixing metal to the display unit with two hex. bolts (M8x15, 

supplied with optional kit) and spring washers (supplied with optional kit). 

3. Fasten six self-tapping screws to fix the display unit to the mounting location. 

(For NX-700B) 

Type: OP08-20 Code No.: 004-514-820 


Mounting metal 08-023-2011 100-327-010 1 

Self-tapping screw 5x20 000-802-081 4 

Pan head screw M4x12 000-802-130 4 

1. Cut out a hole with dimensions as shown below in the mounting location. 

155+0.5 

156+1 

144+1 

155+0.5 

4 

Fixing hole 

2. Attach the fixing metal to the display unit with four pan head screws (M4X12, 

supplied with the optional kit). 

3. Fasten four self-tapping screws (supplied with the optional kit) to fix the 

display unit to the mounting location. 

4-2


4.2 Receiver Unit 

General mounting considerations 

• The mounting location should be well ventilated and dry. 

• The unit can be mounted on bulkhead or the desk. 

• Secure the maintenance space shown in drawing at the back of this manual 

for ease of maintenance and service. 

• Compass safe distances are: 

Standard: 1.15 m, Steering: 0.75 m 

Mounting Method 

Fasten the receiver unit with four self-tapping screws (5x20, supplied as 

installation material). For bulkhead mounting, do the follows. 

1. Tighten lower self-tapping screws so there is 5 mm clearance between 

bottom of screw head and bulkhead. 

2. Hook the receiver unit on the lower screws. 

3. Tighten upper screws followed by the lower screws. 

Fixing hole 2- 6 

210+1 

205+1 

8 

6 

210+1 

Notch 

4-3


4.3 Antenna Unit 

Mounting considerations 

Install the antenna unit referring to the antenna installation diagram at the back 

of this manual. When selecting a mounting location for the antenna unit, keep in 

mind the following points: 

• Do not shorten the antenna cable. 

• The NX-700 contains a very sensitive receiver. To avoid mutual interface with 

other radio equipment, do not install this unit near an SSB/VHF/CB 

radiotelephone. 

Coat here with silicone sealant to 

prevent breakage of the cable by 

vibration. 

Wrap the vinyl sheet to prevent 

the breakage of the cable, and 

then fix the hose clamp. 

4-4


4.4 Printer (NX-700B only) 

Prepare the printer by locally as shown below for the NX-700B. 

-8 bit parallel Centronics interface, or serial RS-232C 

-Serial printer 

-Baud Rate: 9600 bps 

-Character length: 8 bit 

-Parity: No 

-Flow control: Xon/Xoff 

-32 characters/line or more 

4.5 Wiring 

Display unit 

NX-700A or B 

Antenna ubit 

NX-7H 

Ground wire 

IV-1.25sq (Local supply) 

Antenna cable 

04S4168 10/20/30/40/50m 

DSUB25P-DSUB25P cable 

(3m) 

Ground wire 

IV-1.25sq (Local supply) 

Power cable 

DPYC-2.5 

(Local supply) 

12-24VDC 

Receiver unit 

NX-7001 

-INS or Navigator 

-Printer (for NX-700B only) 

-Alarm 

4-5


Receiver unit 

All cables are gathered to the receiver unit. Connect cables at inside of the 

receiver unit as shown below. 

RCV Board 

08P3227 

TB401 TB402 

(+) (-) 

J401 

J402 

1 2 3 4 5 6 

J403 

1 2 3 4 5 6 7 8 

DPYC-2.5 

(to ship's battery) 

TTYCS-1Q 

(to Navigator 

or INS) 

DPYC-1.5 

(to External alarm) 

Antenna cable 

(to Antenna unit) 

Printer cable 

(to Printer, NX-700B only) 

DSUB25P-DSUB25P-3M cable 

(to Display unit) 

Receiver unit, inside view 

Use the following JIS cable (Japan Industrial Standard) or equivalent to connect 

power source, INS and external alarm appropriately. 

DPYC-2.5 

Armor 

DPYC-1.5 

Armor 

TTYCS-1Q (Four core twisted) 

Sheath 

Sheath 

Armor 

Sheath 

φ = 12.5 mm 

Conductor 

2 

S = 2.5 mm 

φ = 2.01 mm 

φ = 11.7 mm 

Conductor 

2 

S = 1.5 mm 

φ = 1.56 mm 

Shield 

φ = 11.3 mm 

Conductor 

2 

S = 0.75 mm 

φ = 1.11 mm 

For printer, use the cable supplied with the printer. 

4-6


Fabricate these cables as below to connect to the receiver unit. 

DPYC-1.5 (For external alarm) 

Vinyl sheath 

5 mm 

25 mm 

100 mm 

Soldering 

Vinyl wire 

Scrape the paint off the cable 

where the cable contacts the cable clamp. 

TTYCS-1Q (For Navigator or INS) 

Shield 

25 mm 

100 mm 

5 mm 

Soldering 

Vinyl sheath 



DPYC-2.5 (For ship’s battery) 

Vinyl wire 

5 mm 

25 mm 

100 mm 

Crimp-on lug 

(M4, local supply) 

Vinyl sheath 



How to use J402 and 403 connector 

1. Insert the terminal opener (attached in the receiver unit) into the connector. 

2. Insert a wire in terminal while pressing and holding the terminal opener. 

3. Release the terminal opener. Pull wire to confirm that it is connected firmly. 

Terminal opener 

Wire 

4-7


Antenna cable 

Be sure to leave some slack in the cable for future service and maintenance. 

For RG-10/UY cable 

When using the coaxial cable, type RG-10/UY (or equivalent), attach the 

FM-MP-7 connector (supplied as installation material) as below. 

1. Remove the sheath by 30 mm. 

2. Bare 23 mm of the center conductor. Trim braided shield by 5 mm and tin. 

3. Slide coupling ring onto cable. 

4. Screw the plug assembly on the cable. 

5. Solder plug assembly to braided shield through solder holes. Solder contact 

sleeve to conductor. 

6. Screw coupling ring into plug assembly. 

Sheath 

30 mm 

5 mm 2 mm 

Plug assembly 

Contact sleeve 

Solder here. 

Braided shield 

Conductor 

Insulator 

Coupling ring 

Solder both 

sides of hole. 

Cut conductor here. 

4-8


Extending antenna cable length 

When connecting two cables for extension, use optional extension cable kit 

OP-04-2. 

Code No.: 000-041-174 (10 m), 000-041-175 (20 m), 000-041-176 (30 m), 

000-041-177 (40 m), 000-041-178 (50 m) 


005-948-320 10 m w/connectors 


Cable assy 04S4168 

005-948-340 1 30 m w/connectors 


005-948-360 

50 m w/connectors 

Connector FMA-1 000-152-964-10 1 

Insulating tape U tape 0.5x19x5M 000-800-985 1 

OP04-2 

To Receiver unit 

Grounding 

FMA-1 connector 

The ground wire (local supply) should be 1.25 sq or larger. The ground wire 

should be as short as possible. 

4-9


4.6 Setting of Printer 

After the connection completely, the setting of printer should be done for 

NX-700B as shown below. (For NX-700A, use the default setting as is.) 

1. Press the key to turn the power on. 

2. Press the MENU key to show the main menu. 

Menu 


System 

Display 

Service 

3. Press ▼ to choose System, and then press the ENT key or ► to activate the 

System menu. 

System 

Warn Msg Alm Off 

Signal Monitor Off 

Key Beep Off 

Time Offset +00:00 

Units 

nm, kt 

Printer NX-700A 

4. Press ▼ to choose Printer, and then press the ENT key or ► to show the 

item window. 

None 

NX-700A 

Upright 

Inverted 

5. Press ▲ or ▼ to choose the appropriate setting, and then press the ENT 

key. 

None: When no printer is connected. 

NX-700A: For NX-700A only. 

Upright: When NX-700B is connected to an upright-type printer which ejects 

paper in bottom to top direction. 

Inverted: When NX-700B is connected to a bulkhead mount printer which ejects 

paper in top to bottom direction. 

6. Press the MENU key several times to close the menu. 

4-10

4.7 Digital Interfacing 


This equipment can receive navigation data in IEC 61162-1 Ed2/2 format. 

Priority 

TIMEDATE 

L/L 

SOG 

STW 

COG 

ZDA 

GNS > GGA > RMC > GLL 

VTG > VBW > RMC 

VHW > VBW 

VTG > RMC 

Input data sentence description 

GGA: GPS position fixing condition 

$--GGA,hhmmss.ss,llll.lll,a,yyyyy.yyy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh 

| | | | | | | | | | | | | | | 

| | | | | | | | | | | | | | +-- 11 

| | | | | | | | | | | | | +---- 10 

| | | | | | | | | | | | +--------- 9 

| | | | | | | | | | +---+------------ 8 

| | | | | | | | +---+------------------ 7 

| | | | | | | +------------------------- 6 

| | | | | | +---------------------------- 5 

| | | | | +------------------------------- 4 

| | | +----+--------------------------------- 3 

| +---+--------------------------------------------- 2 

+------------------------------------------------------------- 1 

1. UTC of position 

2. Latitude, N/S 

3. Longitude, E/W 

4. GPS quality indicator (see note) 

5. Number of satellite in use,00-12, may be different from the number in view 

6. Horizontal dilution of precision 

7. Antenna altitude above/below mean sealevel, m 

8. Geoidal separation, m 

9. Age of differential GPS data 

10. Differential reference station ID, 0000-1023 

11. Checksum 

NOTE 

0 = fix not available or invalid 

1 = GPS SPS mode, fix valid 

2 = differential GPS, SPS mode, fix valid 

3 = GPS PPS mode, fix valid 

4 = Real Time Kinetic. Satellite system used in RTK mode with fixed integers 

5 = Float RTK. Satellite system used in RTK mode with floating fingers 

6 = Estimated (dead reckoning) mode 

7 = Manual input mode 

8 = Simulator mode 

The GPS quality indicator shall not be a null field. 

4-11


GLL: Latitude and longitude 

$--GLL,llll.lll,a,yyyyy.yyy,a,hhmmss.ss,A,a*hh 

| | | | | | | | 

| | | | | | | +------- 6 

| | | | | | +--------- 5 

| | | | | +----------- 4 

| | | | +---------------- 3 

| | +------+----------------------- 2 

+---+----------------------------------- 1 




4. Status: A=data valid, V=data invalid 

5. Mode indicator (see note) 

6. Checksum 

NOTE Positioning system Mode indicator: 

A = Autonomous 

D = Differential 

E = Estimated (dead reckoning) 

M = Manual input 

S = Simulator 

N = Data not valid 

The Mode indicator field supplements the Status field. The Status field shall be 

set to V=invalid for all values of Operating Mode except for A=Autonomous and 

D=Differential. The positioning system Mode indicator and Status field shall not 

be null fields. 

4-12


RMC: Recommend Minimum Specific GNSS Data 

$--RMC,hhmmss.ss,A,llll.lll,a,yyyyy.yyy,a,x.x,x.x,xxxxxx,x.x,a,a*hh 

| | | | | | | | | | | | | 

| | | | | | | | | | | | +--- 10 

| | | | | | | | | | | +----- 9 

| | | | | | | | | +--+------- 8 

| | | | | | | | +--------------- 7 

| | | | | | | +--------------------- 6 

| | | | | | +------------------------- 5 

| | | | +---+---------------------------- 4 

| | +---+---------------------------------------- 3 

| +--------------------------------------------------- 2 

+---------------------------------------------------------- 1 

1. UTC of position fix 

2. Status: A=data valid, V=navigation receiver warning 



5. Speed over ground, knots 

6. Course over ground, degrees true 

7. Date: dd/mm/yy 

8. Magnetic variation, degrees E/W 


10. Checksum 






S = Simulator 


The Mode indicator field supplements the Status field. The Status field 

shall be set to V=invalid for all values of Operating Mode except for 

A=Autonomous and D=Differential. The positioning system Mode indicator 

and Status field shall not be null fields. 

4-13


ZDA: Time and date 

$--ZDA,hhmmss.ss,xx,xx,xxxx,xx,xx*hh 

| | | | | | | 

| | | | | | +--------- 7 

| | | | | +----------- 6 

| | | | +-------------- 5 

| | | +------------------ 4 

| | +---------------------- 3 

| +------------------------- 2 

+--------------------------------- 1 

1. UTC 

2. Day, 01 to 31(UTC) 

3. Month, 01 to 12(UTC) 

4. Year(UTC) 

5. Local zone hours, 00h to +-13h 

6. Local zone minutes, 00 to +59 

as local hours 

7. Checksum 

4-14


NRQ: Request NAVTEX messages 

Command to request specific NAVTEX message(s) to be sent to IBS port. Messages may be 

sent in any order. Each message sent from the IBS port shall be preceded by the NRX sentence. 

$-NRQ,x,h,h*hh 

Note 1: the transmitter coverage area mask is defined as a 32 bit mask 0xFF.FF.FF.FF where 

the least significant bit represents transmitter coverage area ’A’, the next bit is ’B’ and so on up 

to bit 25 which is ’Z’. Bits 31-26 shall be set to ’0’. To select a transmitter coverage area its 

corresponding bit shall be set to ’1’; to deselect a transmitter coverage area its corresponding 

bit shall be set to ’0’. 

Note 2: the message type mask is defined as a 32 bit mask 0xFF.FF.FF.FF where the least 

significant bit represents message type ’A’, the next bit is ’B’ and so on up to bit 25 which is ’Z’. 

Bits 31-26 shall be set to ’0’. To select a message type its corresponding bit shall be set to ’1’; 

to deselect a message type its corresponding bit shall be set to ’0’. 

NMK: Set NAVTEX mask 

Command to set B1.B2 mask for specific NAVTEX message(s) to be stored in internal message 

memory & echoed to the IBS port. 

$-NMK,x,h,h*hh 

Note 1: the transmitter coverage area mask is defined as a 32 bit mask 0xFF.FF.FF.FF where 

the least significant bit represents transmitter coverage area ’A’, the next bit is ’B’ and so on up 

to bit 25 which is ’Z’. Bits 31-26 shall be set to ’0’. To select a transmitter coverage area its 

corresponding bit shall be set to ’1’; to deselect a transmitter coverage area its corresponding 

bit shall be set to ’0’. 

Note 2: the message type mask is defined as a 32 bit mask 0xFF.FF.FF.FF where the least 

significant bit represents message type ’A’, the next bit is ’B’ and so on up to bit 25 which is ’Z’. 

Bits 31-26 shall be set to ’0’. To select a message type its corresponding bit shall be set to ’1’; 

to deselect a message type its corresponding bit shall be set to ’0’. 

Example usage: 

&NVNMK,518,00001E1F,00000023*42 

4-15


ACK: Acknowledge 

$--ACK,xxx*hh 

| | 

| + ------------------------2 

+-----------------------------1 

1. Local alarm number(identifier) 

2. Checksum 

GNS: 

$--GNS,hhmmss.ss,llll.lll,a,yyyyy.yyy,a,c--c,xx,x.x,x.x,x.x,x.x,x.x*hh 

| | | | | | | | | | | | | 

| | | | | | | | | | | | +--- 11 

| | | | | | | | | | | +------ 10 

| | | | | | | | | | +---------- 9 

| | | | | | | | | +-------------- 8 

| | | | | | | | +------------------ 7 

| | | | | | | +---------------------- 6 

| | | | | | +------------------------- 5 

| | | | | +------------------------------ 4 

| | | +-----+--------------------------------- 3 

| +-----+--------------------------------------------- 2 

+------------------------------------------------------------- 1 




4. Mode indicator 

5. Total number of satllite in use,00-99 

6. HDOP 

7. Antenna altitude, metres, re:mean-sea-level (geoid) 

8. Geoidal separation 

9. Age of differential data 

10. Differential reference station ID 

11. Checksum 

4-16


VHW: Water speed and heading 

$--VHW,x.x,T,x.x,M,x.x,N,x.x,K*hh 

| | | | | | | | | 

| | | | | | | | +--------- 5 

| | | | | | +--+----------- 4 

| | | | +--+----------------- 3 

| | +---+----------------------- 2 

+---+----------------------------- 1 

1. Heading, degrees true 

2. Heading, degrees magnetic 

3. Speed, knots 

4. Speed, km/h 

5. Checksum 

VTG: Course over ground and ground speed 

$--VTG,x.x,T,x.x,M,x.x,N,x.x,K,a*hh 

| | | | | | | | | | 

| | | | | | | | | +------- 6 

| | | | | | | | +--------- 5 

| | | | | | +--+----------- 4 

| | | | +--+----------------- 3 

| | +--+----------------------- 2 

+--+----------------------------- 1 

1. Course over ground, degrees true 

2. Course over ground, degrees magnetic 

3. Speed over ground, knots 

4. Speed over ground, km/h 


6. Checksum 






S = Simulator 


The positioning system Mode indicator field shall not be a null field. 

4-17


VBW: Dual ground/water speed 

$--VBW,x.x,x.x,A,x.x,x.x,A,x.x,A,x.x,A*hh 

| | | | | | | | | | | 

| | | | | | | | | | +--- 11 

| | | | | | | | | +----- 10 

| | | | | | | | +-------- 9 

| | | | | | | +----------- 8 

| | | | | | +-------------- 7 

| | | | | +----------------- 6 

| | | | +-------------------- 5 

| | | +------------------------ 4 

| | +--------------------------- 3 

| +------------------------------ 2 

+---------------------------------- 1 

1. Longitudial water speed, knots 

2. Transverse water speed, knots 

3. Status: water speed, A=data valid V=data invalid 

4. Longitudial ground speed, knots 

5. Transverse ground speed, knots 

6. Status: ground speed, A=data valid V=data invalid 

7. Stern transverse water speed, knots 

8. Status: stern water speed, A=data valid V=data invalid 

9. Stern transverse ground speed, knots 

10. Status: stern ground speed, A=data valid V=data invalid 

11. Checksum 

4-18


Output data description 

NRX: New NAVTEX received message 

New NAVTEX message to follow in ASCII format 

$NXNRX,xxxx,x,x,x,xx,xx,xxxx,hhmmss,x.x,n--n*hh 

encapsulated message 

error rate % (xx.x) 

UTC of receipt of message 

year 

month (1-12) 

day (0-31) 

freq ('490', '518' or '4209') 

number of lines in message (1 to 999) 

line number (1 to 999) 

message identifier (B1B2B3B4) 

The first NRX sentence transmitted for a particular NAVTEX message shall contain valid data 

for all fields. For subsequent NRX sentences encapsulating a NAVTEX message, all fields apart 

from 'message identifier', 'line number' and 'encapsulated message' are optional. If UTC time or 

date are not known then the fields are NULL. 

Example usage: 

$NXNRX,TA21,1,4,518,10,01,2005,102000,2.2,291600 UTC JAN =*hh 

$NXNRX,TA21,2,4,,,,,,,OOSTENDERADIO - INFO 37/04 =*hh 

$NXNRX,TA21,3,4,,,,,,,WESTHINDER ANCHORAGE, ANCHOR LOST IN*hh 

$NXNRX,TA21,4,4,,,,,,,POSITION 51-24.94N 002-40.02E.+*hh 

Example usage when no UTC is available to the equipment: 

$NXNRX,TA21,1,4,518,,,,,2.2, TEST MESSAGE*hh 

Where the NAVTEX message contains reserved characters as defined in IEC 61162-1, then 

these shall be handled by using ASCII 'escape code' : 

c) Reserved character ASCII escape code 

d) ^0D 

e) ^0A 

f) $ ^24 

g) * ^2A 

h) , ^2C 

i) ! ^21 

j) \ ^5C 

k) ^ ^5E 

l) ~ ^7E 

4-19


ALR: Set alarms 

$NXALR,hhmmss.ss,xxx,A,A,c--c*hh 

| | | | | | 

| | | | | +----------------- 6 

| | | | +----------------- 5 

| | | +-------------------- 4 

| | +---------------------- 3 

| +------------------------- 2 

+--------------------------------- 1 

1. Time of alarm condition change, UTC 

2. Local alarm number(identifier) 

3. Alarm condition(A=threshold exceeded, V=not exceeded) 

4. Alarm's acknowledge state, A=acknowledged V=unacknowledged 

5. Alarm's description text 

6. Checksum 

Serial Interface 

4-20

MENU TREE 

MENU/ESC Key 


Receive Mode (INS, Auto, Manual) 

Local Channel (490kHz, 4209.5kHz) 

Auto Print (Off, All, User Select) 



System 

Display 

Warn Msg Alm (Off, On) 

Signal Monitor (Off, Int’l, Local) 

Key Beep (Off, On) 

Time Offset (-13:30 to +13:30, 0:00) 

Units (nm, kt, km, km/h, mi, mi/h) 

Printer (None*, NX-700A, Upright, Inverted) *: Default seting for NX-700B. 

Scrolling (Slow, Fast, Skip To $$) 

Font Size (Small, Medium, Large) 

Time Display (24hour, 12hour) 

Date Display (MMM DD YYYY, DD MMM YYYY, YYYY MMM DD) 

User Display (Off, Nav Data, Distance) 

Speed Display (SOG, STW) 

Contrast (0 to 9, 5) 

Service 

INS Input Speed (4800, 9600, 19200, 38400bps) 

INS Output Speed (4800, 9600, 19200, 38400bps) 

Print Header (Off, On) 

Edit Station List 

Default Setting 

Test 

Rcv Monitor 

LIST key 

All Messages 


User Selected Messages 

Good Messages 

Lock Message 

PRINT key 

Print 

Cancel Print 

AP-1

FURUNO 

SPECIFICATIONS OF NAVTEX RECEIVER 

NX-700A/B 

NX-700A/B 

1 NAVTEX RECEIVER 

1.1 Receiving frequency 518 kHz and 490 kHz (or 4209.5 kHz), receive both frequencies 

simultaneously 

1.2 Mode of reception F1B 

1.3 Sensitivity 2 µV e.m.f. (50 ohms), 4% error rate or less 

1.4 Input protection Withstands 30 Vrms for 15 minutes or more (w/ pre-amp unit) 

1.5 Spurious emission 1nW or less 

1.6 Message category A: Navigation warning 

B: Meteorological warning 

C: Ice report 

D: Search and rescue information/ pirate attack warnings 

E: Meteorological forecast 

F: Pilot message 

G: AIS 

H: Loran message 

I: Spare 

J: SATNAV messages 

K: Other electronic navigational aid and system message 

L: Navigational warning (addition to “A”) 

V to Y: Special services allocation by the NAVTEX Co-ordinating 

Panel 

Z: QRU (no message on hand) 

2 DISPLAY UNIT 

2.1 Display system 5-inch, 76 (W) x 100 (H) mm, monochrome LCD, 240 x 320 dots 

2.2 Display modes Message selection mode 

Message display mode 

2.3 Message storage 200 messages x 2 channels 

(100,000 characters x 2 channels) 

3 PRINTER SECTION (FOR NX-700A ONLY) 

3.1 Printing system Line thermal head printing system 

3.2 Printing paper Thermal paper (58 mm x 30 m) 

3.3 Printing width 48 mm 

3.4 Character format 24 x 12 dot 

3.5 Dot pitch 8 dots/ mm 

3.6 Number of characters 32 characters/line 

3.7 Print speed Approx. 20 mm/sec. 

SP - 1 

E5649S01B-M

FURUNO 

NX-700A/B 

4 ANTENNA UNIT 

4.1 Antenna type NX-7H: H-field antenna 

4.2 Output impedance 50 ohms 

4.3 Power supply +7 V to +9 V (thru co-ax cable) 

5 INTERFACE 

5.1 Input data IEC61162-1, -2 

GGA, GLL, RMC, ZDA, NRQ, NMK, ACK, GNS, VHW, VTG, VBW 

Output data 

NRX, ALR 

5.2 Alarm PHOTO MOS Contact closure signal (max. 0.5 A, 50 V) for SAR 

alert 

6 POWER SUPPLY 

6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 

7 ENVIRONMENTAL CONDITION 

7.1 Ambient temperature 

Antenna unit 

-25°C to +70°C 

Receiver / Display unit -15°C to +55°C 

7.2 Relative humidity 95% at 40°C (without dew condensation) 

7.3 Waterproofing 

Antenna unit 

IP66 

Receiver / Display unit IP20 (NX-700B: IP25 for front panel) 

7.4 Vibration - 2Hz to 5 Hz and up to 13.2 Hz with a deviation of ±1 mm ±10% 

(7 m/s2 maximum acceleration at 13.2 Hz); 

- above 13.2 Hz and up to 100 Hz with a constant maximum 

acceleration of 7 m/s 2 . 

8 COATING COLOR 

8.1 Display unit N3.0 

8.2 Receiver unit N3.0 

8.3 Antenna unit N9.5 

SP - 2 

E5649S01B-M

FURUNO 

NX-700A/B 





5 INTERFACE 



Output data 

NRX, ALR 


alert 


6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 



Antenna unit 

-25°C to +70°C 




Antenna unit 

IP66 










SP - 2 

E5649S01B-M

FURUNO 

NX-700A/B 





5 INTERFACE 



Output data 

NRX, ALR 


alert 


6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 



Antenna unit 

-25°C to +70°C 




Antenna unit 

IP66 










SP - 2 

E5649S01B-M

FURUNO 

NX-700A/B 





5 INTERFACE 



Output data 

NRX, ALR 


alert 


6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 



Antenna unit 

-25°C to +70°C 




Antenna unit 

IP66 










SP - 2 

E5649S01B-M

FURUNO 

NX-700A/B 





5 INTERFACE 



Output data 

NRX, ALR 


alert 


6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 



Antenna unit 

-25°C to +70°C 




Antenna unit 

IP66 










SP - 2 

E5649S01B-M

FURUNO 

NX-700A/B 





5 INTERFACE 



Output data 

NRX, ALR 


alert 


6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 



Antenna unit 

-25°C to +70°C 




Antenna unit 

IP66 










SP - 2 

E5649S01B-M

FURUNO 

NX-700A/B 





5 INTERFACE 



Output data 

NRX, ALR 


alert 


6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 



Antenna unit 

-25°C to +70°C 




Antenna unit 

IP66 










SP - 2 

E5649S01B-M

FURUNO 

NX-700A/B 





5 INTERFACE 



Output data 

NRX, ALR 


alert 


6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 



Antenna unit 

-25°C to +70°C 




Antenna unit 

IP66 










SP - 2 

E5649S01B-M

FURUNO 

NX-700A/B 





5 INTERFACE 



Output data 

NRX, ALR 


alert 


6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 



Antenna unit 

-25°C to +70°C 




Antenna unit 

IP66 










SP - 2 

E5649S01B-M

FURUNO 

NX-700A/B 





5 INTERFACE 



Output data 

NRX, ALR 


alert 


6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 



Antenna unit 

-25°C to +70°C 




Antenna unit 

IP66 










SP - 2 

E5649S01B-M

FURUNO 

NX-700A/B 





5 INTERFACE 



Output data 

NRX, ALR 


alert 


6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 



Antenna unit 

-25°C to +70°C 




Antenna unit 

IP66 










SP - 2 

E5649S01B-M

FURUNO 

NX-700A/B 





5 INTERFACE 



Output data 

NRX, ALR 


alert 


6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 



Antenna unit 

-25°C to +70°C 




Antenna unit 

IP66 










SP - 2 

E5649S01B-M

FURUNO 

NX-700A/B 





5 INTERFACE 



Output data 

NRX, ALR 


alert 


6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 



Antenna unit 

-25°C to +70°C 




Antenna unit 

IP66 










SP - 2 

E5649S01B-M

FURUNO 

NX-700A/B 





5 INTERFACE 



Output data 

NRX, ALR 


alert 


6.1 NX-700A 12-24VDC: 1.5-0.8A 

6.1 NX-700B 12-24VDC: 0.7-0.4A 



Antenna unit 

-25°C to +70°C 




Antenna unit 

IP66 










SP - 2 

E5649S01B-M

INDEX 

A 

Alarm message.............................................2-9 

C 

Contrast...................................................... 2-18 

D 

Date............................................................ 2-21 

Default Settings ............................................3-6 

Diagnostics ...................................................3-5 

F 

Font Size .................................................... 2-18 

Frequency.....................................................2-8 

I 

Icons........................................................... 2-15 

Input Speed ................................................ 2-19 

Editing.....................................................2-14 

O 

Output Speed..............................................2-19 

P 

Power ...........................................................2-1 

Printer Setting.............................................4-10 

Printing .......................................................2-10 

all messages...........................................2-10 

canceling ................................................ 2-11 

each messages....................................... 2-11 

Print header ................................................2-19 

Protecting ...................................................2-10 

R 

Rcv Monitor.................................................2-19 

Receive Mode...............................................2-5 

Replacement.................................................3-2 

K 

Keys .............................................................2-1 

Key Beep.................................................... 2-17 

S 

Scrolling......................................................2-18 

Speed Display.............................................2-18 

L 

LCD dimmer .................................................2-2 

M 

Maintenance .................................................3-1 

Menu Tree ................................................. AP-1 

Message 

Sample .....................................................2-4 

Format......................................................1-2 

List.......................................................... 2-16 

New ..........................................................2-3 

Processing................................................2-9 

T 

Time Display ...............................................2-18 

Time Offset .................................................2-17 

Troubleshooting ............................................3-4 

U 

Units ...........................................................2-17 

N 

NAVTEX .......................................................1-1 

NAVTEX Station Map....................................1-3 

NAVTEX Station List .....................................1-4 

Adding .................................................... 2-12 

Deleting .................................................. 2-14 

IN-1

NAVTEX RECEIVER - Furuno

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