[Milsurplus] SCR-522 "jurasic repeater"

[Marty R's GI-stuff haunt]

Seems the thread lives on in spite of itself.

My B17 radio op cum gunner pal Bill (not Bob) Johnson sed the B17 VHF
over-channel "obiters" (his term) carried 2 '522s running perhaps 40mcs
apart.  When one rec'd on, say, 107 mcs, it's audio'd be input to the 
other on, say, 147 mcs.

147 stn. wud come back on 147 & in-orbiter 1st 522 would xmt on it's
107 receive freq.

           ---conjecture lamp on----

An audio recognizing ckt. to key the other tx could have been done w. a
diode, triode, & plate-sensitive relay.  Super easy, direct, and ingenious.

BET 2 TX antennas were on tail, 2 rx antennas up near nose.  This for
i/o isolation.  cwBut donch gess nose antennas would clear ground when 
parked 'cause B17 tailwheel dino.  But they mighta dragged a little 
at rotation.

           ---conjecture lamp off----

This is lot diferent from today's 1-rx, 1-tx repeaters which are closely
spaced & have sharp band-pass filters (duplexers) isolating the i/o.

Someone wrote about a similar lash-ups w. ARC-1s some time ago here - 
actually was an "ARC-xx system" fm 50s.

Anyway there were usually at least 2 "orbiters" aloft.  With 4-chan.
remote-controlled VHF & the liasson "orbiters," the radio-op job was 
over.

Bill Johnson was on one of the last B17 missions in 3/45 & shot at
a Me163 goblin rocket plane - missed.  Gunner in his formation shot down
only ME262.  This was really at the end.

More great-to-me stories but I'll stop here

  Marty