[Milsurplus] Coastwatchers nix BC-474 BC-654
Hue Miller
kargo_cult at msn.com
Sat Oct 30 00:37:35 EDT 2010
While i'm feeling ornery, i think i'll push on farther.
I don't think any BC-474 or BC-654 were issued for Philippine
guerrilla operations, those later war networks established
by Allied HQ and supplied by submarine and airdrop.
Reason - can you guess?
The frequency range cuts off too low. This does not allow
frequency flexibility for a variety of working distances. The
VFO non-crystal transmitter is a non-starter in clandestine
operation. You cannot waste time in netting or call-up
procedures. You want to come up on the air on the right
frequency NOW. Even tho your friendly opponent has learned
to listen on that frequency too, in hopes of DFing you and
dropping in on you to kill you.
Book "You're No Good To Me Dead" describes one radio
supplied as a "low powered Army field set powered by a
handcranked generator". He mentions that unless the
generator is cranked at a constant speed, the receiver
drifted all over. I think that unidentified set is the TRC-10.
#1, the frequency range, which is 3 - 15 MHz. #2, the
transmitter is crystal controlled, #3 the receiver does
not have a voltage regulator, and uses 6 volt tubes, so
it is powered off the same HV supply as the transmitter-
and subject to varying voltages.
BTW, author also describes working KFS San Francisco
with his 3BZ "Coastwatcher" radio at 12 watts; KFS
relayed message both to another Philippine NCS station
as well as to Australia HQ. He could not work Australia
by the 3BZ, but he could work California! -Hue
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