[Milsurplus] airborne radio activity

[Marty R's GI-stuff haunt]

Yo ARC5 Dave

Let me excerpt from

  US Army in WW2 - Sig. Corps, The Outcome, P. 501

  ...that by 1943 the old high frequency aircraft radio SCR-274 had yielded
     to the VHF SCR-522 which leaped up to the 100 to 156 megacycle
     range...

Hey on REPEATERS.  PLEASE note the twin SCR-522 set-up (later called 
ARC-10 ala WB5CAB) was a RELAY not a repeater.  You set your 522 to 
receive & transmit on ONE freq & the "over channel relay" would send & 
receive on another freq. 'way removed.  

Half duplex, one channel button for the circuit.

There's nothing about the ARC-10 in "the outcome" & the B24 driver might
have good stuff.  Only "Outcome" relay stuff is for the AN/TRC-1, etc.  
The Moto & Link cop radio shebang.

By the way your "radio horizon" stuff is well taken, well done.  It
flys in the face of my pal's saying "we were VHF to England (in 3/45)
all the way to Berlin."

Then there is that case for multiple relays BUT pal kept saying the 
"over channel (english) relay."

And too there's your "army airways" document absence of enroute VHF.  Can't
address that.

    - - - -

"Outcome" did lots more 522 stuff & especially interesting is how tanks
in 7/44 were so rigged - before there was an "official" VRC-1.  Here's
an excerpt

  The juggernaut (US lead tank) would radio a P47 & ask where the 
  rumpus was (there's an example of Kismet-Red & Bronco in touch) & 
  the ensuing engagement would proceed to much greater US advantage... 
  especially if a P47 had rocketed an enemy's track away.  

522s in Jeeps happened in '43 in North Africa.  

AAF loved "rolling their own." An example is procurement of scads of
Jefferson-Travis JT-350s for HF installs in radar-service small-trucks.

Field expedients!  Neat!!!

     - - - -

I gotta say I've chatted with chiefs who set up the Wilcox 750TL
6mc sets for army airways (W2NEG - the hump) & Delta (W4KMR).

Burma ckt. just dismantled in mid-'46.  Delta sacked theirs & went to 
ARC-1s & BC639/640s in '47.

W2NEG provided a neat insight & that was on the use of Collins 32RA sets 
MARS disgorged in the 50s.  They were back-up at army airways way stations.
32RA later named AN/FRT-7??  I know a guy who has one so-named.

     - - - - 

Too many thots... GUILTY