[Milsurplus] How I Use an LM

[howard holden]

I've used both a BC-221 and my LM in the ARRL frequency measuring tests, and twice hit under 50 cps off the mark. It's not real easy, but it is a testament to how well things were done back then. Still use my LM to keep the BC-348 and HRO on the mark.

Howie WB2AWQ 
  ----- Original Message ----- 
  From: Rob Flory<mailto:farmer.rob.flory at gmail.com> 
  To: milsurplus<mailto:milsurplus at mailman.qth.net> 
  Sent: Monday, October 17, 2011 1:04 PM
  Subject: [Milsurplus] How I Use an LM


  I find it to be an essential accessory to CW operations with my TBX, when
  trying to work people with modern, selective receivers.  Not so much a
  problem when working other old military radios, but if you call someone
  using a modern radio with a 500 cycle CW filter, you have to be right on
  frequency.

  The TBX receiver pulls like mad when exposed to the transmitter's strong
  signal, so netting the TX to the RX within 500 cycles is near impossible.

  However,you can beat the LM to the station you want to work, then tune the
  transmitter while listening to the beat in the LM headphone, and bang, you
  are dead on.

  You don't need the book to do this.  I have, however, noted the settings for
  OMRN and a few other nets on my LM so I can pre-tune to the nets.

  I have also mentioned before how I used the LM as a BFO in an ARC-1, just by
  coupling it loosely to the IF side of the mixer.  This allowed me to hear CW
  beacons on the ARC-1.

  RF

  K
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