[FedCom] Re: 138.925

[Rankin, Robert L]

I heard similar-sounding telemetry in the 138-144 MHz. segment some years back and learned from a two-way installer that it was used to regulate hot water heaters in base housing at Ft. Leavenworth.  I have no idea what your signals are, but a lot of transmissions in this range can be pretty mundane!
 
Bob, WoNXN

________________________________

From: fedcom-bounces at mailman.qth.net on behalf of gfdubois at juno.com
Sent: Tue 10/7/2008 4:42 PM
To: fedcom at mailman.qth.net
Subject: [FedCom] Re: 138.925



Speaking of weird signals, I could use some help with one.

There has been a digital signal on 138.925 coming from the ANG base at
Portland International for decades now.
According to the IRAC database, it is a fixed station transmitting with
ten watts. I always assumed it had
something to do with a/c navigation, but I don't think so. For one, we
have gone through three different aircraft in the
last 30 years, and it's still there. And we have a TOD generator, on
397.0.
The "Special Notes" code is S361, which means "multiple transmitting
and/or receiving stations operating at fixed locations..."  But
everything the ANG owns is at Portland Arpt. (Or Klamath Falls, in
southern Oregon.) And the signal is always the same strength.

If you listen to it, it transmits at irregular intervals.
  http://mywebsite.mysite.com/files.html
(There's another one on 139.875 that's been there for the last ten years
or so. I have no idea what that one is either.)

Anyone have any ideas?
(Not guesses. Any AF vets in the group?)

Thanks.

George DuBois








_______________________________________________
FedCom mailing list
FedCom at mailman.qth.net
http://mailman.qth.net/mailman/listinfo/fedcom


-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/ms-tnef
Size: 4473 bytes
Desc: not available
Url : http://mailman.qth.net/pipermail/fedcom/attachments/20081007/1d66bfba/attachment.bin