[Milsurplus] Alexanderson alternator on Xmas eve

[James M. Walker]

I am currently using a Rycom 1307A/GR as the "Buffalo Grabber" receiver
for the ARRL 500 KC experiment. Evenings starting at 15:00 EDT.

It will be on to copy SAQ, I think I'll hear it as I also hear the BIG 
Chinese
station, at 68 Khz.

Jim
WB2FCN/WD2XSH-22

----- Original Message ----- 
From: "Mike Morrow" <kk5f at earthlink.net>
To: <milsurplus at mailman.qth.net>
Sent: Sunday, December 09, 2007 7:26 PM
Subject: RE: [Milsurplus] Alexanderson alternator on Xmas eve


> Mike wrote:
>
>>For the receiver, I believe I am just going to use one of
>>my relatively modern solid state Rycom selective voltmeters.
>
> There's another name from the past.  Submarines of my era often had a 
> commercial model Rycom selective voltmeter installed...not in the radio 
> room, but in sonar as a acoustic receiver.   I'll bet it will make a 
> pretty good VLF receiver.
>
> FWIW, our underwater telephone system, used for voice communications via 
> sound to surface ship escort, actually used an upper sideband modulated 
> acoustic signal whose "carrier" would be in the VLF range, had it been 
> radio and not sound.
>
> Mike / KK5F