Sounds like a digital signal. Could it be one of those new d-star rigs that
some one has activated the autodial feature on the dtmf pad too? The DTMF
sounds like it is coming from an autodial feature. My HT has this feature and
so does my mobile rig.
Jaime-KA3NXN
----- Original Message ----
From: Scott Overstreet <[EMAIL PROTECTED]>
To: Repeater-Builder@yahoogroups.com
Cc: Scott Overstreet <[EMAIL PROTECTED]>; Dave Platt <[EMAIL PROTECTED]>
Sent: Tuesday, December 12, 2006 2:10:08 PM
Subject: [Repeater-Builder] Mystery Signal
Hello All
An interfering mystery signal has suddenly appeared
on the input (144.670 mhz.) of our repeater. Using a five kc. wide FM
detector---The signal is approximately one second in duration---- opens with
100 hz. PL (which continues throughout) and then three DTMF "zeros" follow
in rapid succession and then possibly a short period of some sort of data. The
signal repeats exactly two times an hour and the source is off in between
transmissions. This goes on continuously without interruption or apparent
change. Our area is between urban and big city and the signal is strong enough
to be heard over a wide area using only an HT.
A wave file of the mystery signal is
at:
http://www.radagast .org/~dplatt/ hamradio/ Signal_3. wav
using an FM detector with wide open
squelch.
We are obviously very interested in identifing this
signal and its origin----
What is it ?
Thanks--
Scott, N6NXI
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