[ARC5] USAF usage of the A.R.C. R-22 BCB receiver

[releazer at earthlink.net]

Department of the Army Technical Manual TM11-525-25, Maintenance Instructions Radio Set ARC Type 12 dated April 1958 states the equipment is used for:

"Reception of ground -to-air communication and navigation signals in the frequency range of 190 to 550 kc using the R-11A receiver.  This frequency band includes CAA four course on all rnages, Navy rnages, Marine beacons, CAA, Air Force, and Navy low frequency tower communications, and the 500 kc distress frequency."

"Reception of ground-to-air signals in the frequency range of 520 to 1500 kc, using the R-10A receiver.  This frequency band includes commercial broadcast stations."

"Manual direction-finding facilities using a loop antenna and the the 190-550 kc (R-11A) or 520-1500 KC (R-10A) facilities described previously."

As to why the R-10A would be in a F-86L the best reason I can think of would be that since the F-86 also had an ARN-6, it would enable the pilot to listen to the ball game while still using the ARN-6 ADF to navigate with.

In the early-1990's a Brazilian 737 crashed in the Amazon jungle when the pilots misread the 27.0 degrees course on their flight plan as 270 degrees and ran out of gas while trying to use the ADF to find their destination but choosing the station on the basis of what had coverage of a major soccer game that was going on.  They could not get the VOR at the destination because they were over 400 miles off course. 

And here is a question:  What is the difference between the R-11A and the R-511, which I have?

Speaking of ADF I still have that ARC R-546 ADF set for $60, with antenna, indicator, and all connectors.

Wayne
WB5WSV