Due to lack of information on the AN/SSC-501 communications system, only the F-5073 RF interference filter will be showcased here.  It is presumed that the F-5073 was built for the RCN as suggested by the JETDS prefix:

S=Surface, water craft, S= Special, C=Communiftions

Endeavour was purchased for scrap by the Ballinger Yard, owned by Moody & Sons of Jacksonville, Florida and wrecked around 2012. According to Kirk Nielsen of 3rd Devil Salvage, this filter was removed from CFAV Endeavour 171 before she was scrapped.  Originally commissioned on March 9, 1965, Endeavour was a Canadian anti-submarine research vessel that was based  mainly in Esquimalt.

The filter itself appears to be four filters in a common enclosure with each filter covering the range of 2 to 32 MHz.   The numbers identified on the orange Dymotape are frequencies. Internally there is a programming panel whose purpose is not known at this time.

Hermes Electronics, the original manufacturer of the F-5073 , was acquired by Ultra Electronics Maritime Systems.  If anyone can provide any further information on the F-5073 filter or the AN/SSC-501 communications system, please contact: jerry.proc@sympatico.ca
 

F-5073 filter. Click on image to enlarge.

All photos in this table provided by Robert Simmons KS4CA.

 
 

Internal views of the F-5073 filter plus its rear panel . Download any image in this table to enlarge.. .

All photos in this table provided by Kirk Nielsen. .

Can anyone confirm if any of the equipment featured in this table was fitted aboard CFAS Endeavour? If so, please contact :jerry.proc@sympatico.ca
Click on image to enlarge. All photos in this table by Kirk Nielsen.	MODEL/ DESCRIPTION
	Sealand Model 66 radiotelephone. 100 channel, FM, marine band radio
	Collins/Rockwell 2050 receiver is a double-conversion superheterodyne solid-state receiver made between 1984-91. Manufactured in Canada for military customers, the HF-2050 is the first production receiver to use digital signal processing. It covers 14 KHz to 30 MHz.
	Harris RF-230S HF SSB transceiver. It operates  in the 1.6 to 30 MHz range with a power output of 125 watts  PEP.
	Plantronics MD 5062/UGC modem
	Harris 2305-07 Control and Distribution Panel.
	Harris Remote Control Units    C5427/SRC512.
	Click to enlarge. Can anyone identify items 1,2,3, and 4 in this photo? If so, contact: jerry.proc@sympatico.ca

Endeavour was fitted with the Mitel SX-20 Telephone Exchange in 1987.  This is the cover sheet for the Technical Acceptance Trail. Click on image to enlarge. The SX-20 was made by Mitel and marketed by many companies as the SX-20, except BT (Bell Telephone or British telephone?)  who called it the Kinsman. The Kinsman was withdrawn from BT's portfolio in 1988. The SX-20 has a maximum configuration of 12 exchange lines and 72 extensions.   (Image provided by Kirk Nielsen)

Endeavour telephone directory. (Provided by Robert Simmons)

 

Endeavour as she appeared prior to her scrapping. Paid off in 1999, she was sold  in 2001 to private interests and converted to a yacht. Her destiny with the cutter's torch in Jacksonville, Florida  was around 2012.  Click on image to enlarge. (Photo by Kirk Nielsen)

 

Back to Miscellaneous Systems Document

Credits and Contributors:

1) Bob Simmons [ks4ca@bellsouth.net]
2)  Kirk Nielsen    [info(at)thirddevil.com]
3) http://www.forposterityssake.ca/Navy/CNAV_ENDEAVOUR.htm
4) 2050 info  http://www.w8zr.net/vintage/receivers/hf2050.htm
5) SX-20 https://www.britishtelephones.com/sx20.htm
 

Feb 206/21