The aircraft listed in this document do not have any rhyme or reason. They are listed here because some data about their radio or electronics fit became available.
ATR-11 radio installation aboard an Avro Anson aircraft.  This radio was built by RCA in Montreal. (Photo reference RE2151-16)


This the radio operator's station in a B-26 Marauder bomber. This particular exhibit, as seen in the National Air and Space Museum in Washington DC, has been re-created in a fuselage section of an aircraft called "Flack Bait" (Photo by Jerry Proc)
Flak Bait served with the 449th Bombardment Squadron, 322nd Bombardment Group, Eighth and Ninth Air Forces. It flew from bases in England and, after D-Day (on which it flew two missions), from bases in France and Belgium. In 21 months, Flak Bait acquired more than 1,000 holes, had its hydraulic system shot out twice and its electrical system once, returned twice on one engine, and came back once with an engine on fire. By war's end, it had flown 202 bombing missions, more than any other American bomber over Europe. (Photo by Jerry Proc).
Canadian Forces photo
Canso is the Canadian designator for the flying boat while Catalina is the US designator.
HF Radio: 2 x AT-6 receivers ; 2 x AT-7 transmitters. 1.5 to 20 MHz (plus 375 and 500 KHz) for the transmitter and 140 to 400 KHz plus 480 KHz to 21 MHz for the receiver.
Search Radar: ASV
Other: SCR-578 (Gibson Girl emergency radio)
Navigation: MN-31A ADF
/Catalina radio 1941.jpg
Canso radio oops position circa 1941 (Photo #HC11782.A)
Canso radio operators position in 1943. The receiver in the photo is the AR-6, built by Canadian Marconi, RCA and Northern Electric.  Directly below the receiver is a control box for the Bendix TA-2 transmitter.Some RCAF Canso/Catalina aircraft carried the AT-12 transmitter, possibly three of them in a single rack, instead of the TA-2. (Photo RE36-4) 
/Canso prototype installation 1953.jpg
Canso protoype installation photo for the radio operator was taken April 14, 1943. In front-center is a BC221 frequency meter with a BC-348 receiver below it and to the left. (Photo #7095)
/Canso transmitter (3).jpg
Canso transmitter, circa 1953. The empty space on the right bottom side of the rack strongly suggests that a second TA-2 transmitter could be mounted in this rack.  (Photo RE36-6) 
CC-129 DAKOTA (DC-3/C-47) RCAF 1959
Canadian Forces photo

Vintage: 1959
HF radio: SCR-287 consisting of BC-348 and BC-395. ARC-8 consisting of BC-348 and ART-13
VHF radio: SCR522, AT/ICA67, ARC-502
Radar: AN/ANP-1 (SCR-718)

Radio Compass (ADF): AN/ARN-6
Marker Beacon: MN53B
Omni Direction  Finding: SARAH. (AN/ARR-8 airborne search receiver for SAR, 70-300 MHz)
Loran 'A' : AN/APN-4


Vintage: 1959 estimated.
HF Radio: ARC-8 consisting of BC-348 and ART-13
VHF radio: Dual ICA67 or ARC-502
UHF radio: ARC-552
Radio Altimeter: SCR718


Radio Compass (ADF) : AN/ARN-6
Marker Beacon: Bendix MN53B
ILS: AN/ARN-5 or Bendix VOR/ILS
Other: BC-453B LF range receiver.

April 28, 1950 - An  airborne radioteletype bay aboard  Dakota #988.  This aircraft was  was part of a communications squadron which could conceivably lead to the aircraft being used as a platform to test out airborne RTTY. The date accompanying the photo would of course indicate it was based in Sea Islamd BC at the time. At the left side top, is a Model 15 teletype machine with an FSC107 frequency shift converter below it.  The receiver for this is likely in the rack on the right side. There is also a Bendix AT-12 transmitter in the right hand rack, It is the item nearest the camera  The radio operatorís compartment is immediately in front of the bulkhead on the port side, Download  image to enlarge.   (NAC photo  RE5198)

S/ 988 History:
Delivered to USAAF 25Apr 1945.  Transferred to  RCAF as S/N 988 on 01 May 1945.
Transferred to  168 HT (Heavy Transport ) Sqn RCAF May1945. 
Transferred to 121 KU Squadron, RCAF Sea Island, April 1946
 Reserialled as 12961 Jun70.and subsequently owned by four different commercial entities.

September 2008: This CH-113 is part of the collection of the Canadian Air Force Museum, Trenton Ontario. (Photo by Jerry Proc)
The avionics configuration (circa 1996-97) for the CH-113/CH-113A helicopter fleet is as follows:

Communications Installation:
 -- AN/ARC-505 HF/SSB radio
 -- AN/ARC-513 VHF/FM transceiver
 -- AN/ARC-511 VHF/AM radio
 -- AN/ARC-164 UHF/AM radio

Intercom Installation:
 -- A81-2 intercom

Emergency Beacon Installation:
 -- AN/URT-505 ELT (emergency locator transmitter)
 -- AN/URT-506 CPI (crash position indicator)
 -- DK-100 UAB (underwater acoustic beacon)

Special Installation:
 -- AN/UIH-503 loudhailer

Navigation Installation:
 -- AN/APN-509 radar altimeter
 -- AN/ARN-89A ADF (Automatic Direction Finder)
 -- AN/ARN-504 TACAN (Tactical Air navigation)
 -- AN/ARN-509 Omega (System now defunct)
 -- AN/ARN-126 VOR/ILS  (VHF omnidirectional ranging)
 -- AN/APS-505 weather radar
 -- AN/ARN-515 Loran C Long-range navigation.
 -- BR15-DF-88 VHF/VHF-FM/UHF direction finder (DF)

Compass Navigation Installation:
 -- J4 compass

Radar Identification Installation:
 -- AN/APX-77 IFF (identity, friend or foe)

Provided by Jeff Rankin-Lowe

graf_zeppelin_radio_room_der_funk_raum_s.jpg This is the radio room of the Graf Zeppelin. Click to enlarge. (Photo credit unknown at this time) 

lz126_wireless office_a.jpg
Wireless office of the German dirigible LZ126. From the book " Z.R. III - LZ 126 to America". The LZ126 was built in Friedrichshafen in 1924 for the U.S. Navy as part of reparations for WWI and was subsequently renamed the ZR-3 "Los Angeles". It was flown across the Atlantic from Germany to Lakehurst, New Jersey in October 1924.


The Lancastrian was a Lancaster bomber converted for civil use. It's main job was to carry  passengers trans-Atlantic and was the first Canadian aircraft to carry a flying radio officer. The a/c in the photo is  Lancastrian CF-CMW of Trans Canada Airlines as seen in  August, 1946. The major external  modifications were the extended nose section and the closing up of the bombay.  (Public Archives Canada PA-61649 via Spud Roscoe)
William Lucas is operating the radio equipment aboard a Trans Canada Airlines Lancastrian aircraft in  September, 1945. (Air Canada photo X20365. Submitted by Spud Roscoe VE1BC)


Lockheed Hudson. It  was developed from the Lockheed Super Electra airliner. ( Library of Congress photo) 
Hudson_1943 NACa.jpg
Radio operator's station in the Lockheed Hudson.  Download image to enlarge.  The table surface is at the right. (NAC photo)

Item #1 - Bendix MT-36 antenna tuning unit for the TA-2 transmitter.
Item #2 - Bendix MT-34 remote control for the TA-2 transmitter.
Item #3 - Bendix RA-1 receiver
Irem #4 - Bendix TA-2 transmitter. 
Frequency range: 2.9 - 17.0 MHz ; 300 - 600 KHz when used with the MT-36
Power: 100 watts
Modes: CW and AM
Frequency control: 8 crystal control  and autotuned channels. 

Hudson_1943 NAC.2a.jpg
Directly behind the pilot is the Radio operator's table in the Hudson. Download image to enlarge.  Note the position of the flameproof key on the table surface.  (NAC photo)

Item 5 might be the Interphone Amplifier. 
Item #6 is the azimuth indicator for the Direction Finder 


During WWII, the RCAF flew 1,200 B-24Js. (Canadian Forces photo)

HF radio: Command SCR-274N.  Liason SCR-287 consisting of BC-348 Rx and BC-375 Tx
VHF Radio for Command:  SCR-522
Search Radar: ASV10 (10 cm)
IFF: SCR-695
Radio Altimeter: AN/APN-1

Radio Compass (ADF): SCR-269G
Autopilot: C1(M-H) or A5

Sonobuoy System AN/CRT-1 sonobuoys with AN/ARR-3 sonobuoy receiver


HF radio: Command SCR-274N. Liason SCR-287 consisting of a BC-348 Rx and BC-375 Tx
VHF radio: Command SCR-522
Emergency radio: SCR-578 (Gibson Girl)
Interphone: BC-347
Search Radar: SCR-517 (ASG) 10 cm
IFF: SCR-595
Radio Altimeter: AN/APN-1

Radio Compass (ADF) SCR-269G
Marker Beacon Receiver: RC-43
Direction Finding: AN/APN-2 ( SCR-729)
LORAN: AN/APN-4 ( possibly AN/APN-9 in later versions of the aircraft)


AN/CRT-1 Sonobuoys
AN/ARR-3 Sonobuoy receiver

loop_antenna_Northern Electric 1944 NAC (1).jpg
Loop antenna production line at Northern Electric, 1941. (NAC photo) 
Hudson--Canso--Battle--amp--Anson--30-June-1943--LAC-MIKAN-No--3589727 (2).jpg
(L-R) Lockheed Hudson, Cansso, Fairey Battle (hidden) and Avro Anson aircraft on June 30, 1943. (NAC photo) 

Contributors and Credits

1) Spud Roscoe <spudroscoe(at)>
2) Jeff Rankin-Lowe <siriusproductions(at)>
3) Andre Guibert  <aguibert(at)>
4) Tom Brent
5) DC3 S/N 988 history

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Nov 28/19