[Milsurplus] Wanted RT-159B/ URC-4 information, parts etc.

[email protected] [email protected]
Sun, 17 Mar 2002 19:54:29 EST


[email protected] writes:

<< 
 It looks like these transcievers were popular / plentiful and I wonder if
 there are some avaiable today - it would be nice to have a pair.

--I think if you're really interested, militaria shows, even some gun
shows with militaria, might turn some up. I have seen these frequently
at militaria auctions.

PS. I will check this myself, but I think using superregenerative receivers
 is verboten on some ham frequencies. I may be wrong.

Not really, but if you monitored a popular ham frequency for long periods,
nearby hams might wonder where the broad, rough signal was coming
from. Some superregens from history used an RF stage to eliminate 
this - not the URC-4, as it was not for everyday communications use -
and the superregen kits (FM broadcast, airband, and vhf-fm 150+ MHz )
seem to do it by loose coupling to the antenna. I don't think, in your
use, you will have any problem.

I have been thinking also of retuning one, like to 6 meters, 49 MHz, or
even 10 meters.  Maybe with the new  FRS walkie talkie frequencies 
opened up in the 150 MHz area, that would be the best bet. You could
not talk to the FRS handie talkies ( FM ), but it would be the easiest 
frequency to hit. Anyway you go, xtals are going to be the major 
expense and hassle.
Interesting that one side of the dipole ( a really neat antenna, BTW )
is grounded. I don't quite get that. Probably it would be easy to
unground & work both poles as a conventional dipole.
Hue Miller
 
 
 
 
 
 
 73 Vaclav AA7EJ
 
 PS. I will check this myself, but I think using superregenerative receivers
 is verboten on some ham frequencies. I may be wrong.
  >>