Radio Control System AN/ARW-19, AN/ARW-20, AN/ARW-21, AN/ARW-22

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Please let me know if you have a copy of AN16-30ARW19-3 "Navy Department Handbook of Maintenance and Instructions for Radio Transmitting Sets AN/ARW-19, AN/ARW-19X, AN/ARW-21, AN/ARW-21X and Radio Receiving Sets AN/ARW-20, AN/ARW-20X, AN/ARW-22, AN/ARW-22X", published under authority of the Secretary of the Air Force and the Chief of the Bureau of Aeronautics, approved December 1, 1948

This is evidently a WW2-era remote control system used for aircraft and missiles. Doolittle Radio Inc. (previously Doolittle & Falknor) of Chicago IL was the manufacturer. This company evidently made low-band  AM police radio equipment that was adapted for remote control use.

• The GORGON TV-guided missile used this system as it has the ARW-22 receiver installed. This was previously Navy type RAY-3 and is evidently equivalent to the Doolittle PR6N. Here is the GORGON page.
• The RAY receiver (Doolittle PR3N) spec sheet is shown below.
• RAY-5 (Doolittle PR7NA or AN/ARW-20) photos are shown below (thanks to a post here)
• The type GS transmitter is the CDF-52163 - 20w, A2 & A3,  23-28 Mc.
• The ARW-19 transmitter was previously known as Navy Type GS-5 and is similar to the Doolittle GWY-1.
  Photos are shown below (thanks to John W7KEZ).
• A GWY-2A transmitter is shown below (thanks to G3VKM posting here)
• Info from WA5CAB I think-
  From CO-NAVAER 08-5Q-227, September 1945:
  GS-2, -3, -4, -5.
  Supersonic radio control transmitting equipment,
  similar to each other except for frequency range
  and operating voltage.
  Used with RAY-2, -3, -4, -5 receivers.
  See AN/ARW-19, -20, -21.
• Here is a US Patent which uses the AN/ARW-19 transmitter, AN/ARW-22 receiver, and a "supersonic selector" as part of the system.
  Partial schematics of  these equipments are shown as Figures 11 and 12. This system uses the MD-27 modulator of the ARW-19 transmitter to create 10 supersonic tones (20kc - 120kc) which is used to modulate an ARC-1 transmitter. At the receiving end, the ARC-1 receiver feeds the AF section of an ARW-20 receiver to decode the 10 tones in its SE-10 selector section (which appears to be a separate box).

Doolittle GWY-1 transmitter	Doolittle GWY-1 transmitter	Doolittle GWY-2A transmitter	Doolittle GWY-2A transmitter
RAY (PR3N) receiver spec	RAY-5 (PR7NA) receiver	RAY-5 (PR7NA) receiver	--