[RTTY] signal on 14.080?

Don ulformat at teleport.com
Mon May 31 12:36:26 EDT 2004


Jerry

14080 is a hangout for those of us that do Hellschreiber. You may have seen one of the Hellschreiber versions.
One of the modes (FeldHell) looks like a wispy vertical bar with horizontals sporadically through it. Obviously this isn't the one
you saw
More likely is the FM105 or FM245. These do look like narrowed rtty bars.  This mode is exceptional for long distance Hell.
(There are other variants but I've not tried them)
If you don't already have it, try MIXW as it has these modes (free download trial copy -- do a quick search of the web. Free version
fully functional after trial period but changing modes becomes very tedious -- registration is cheap)
Best regards
Don
AC7ZG


PS if you want to give it a try some time, let me know and I will setup a schedule. (Oregon qth)

-----Original Message-----
From: rtty-bounces at contesting.com [mailto:rtty-bounces at contesting.com]On
Behalf Of Jerry Pixton
Sent: Monday, May 31, 2004 8:01 AM
To: rtty at contesting.com
Subject: RE: [RTTY] signal on 14.080?


Scott, et al,

It is not MFSK16. I have a decoder for that which I sometimes use. You can
hear the shifting tones in MFSK16 and see the tones moving around on the
MMTTY display. I don't know what BPSK16 sounds like but one the MMTTY
display it looks to have only several tones but the baud rate is much
higher then rtty.

Interesting

Jerry,



At 08:44 AM 5/31/2004 -0400, Scott Keating wrote:
>It's MFSK. There are a few programs around dedicated to it and MixW that
>offers it among others like PSK, etc.  Occasionally you might hear THROB up
>there too, which has more of a warble to it.
>
>73 - Scott, N4GVA
>
>--
>-----Original Message-----
>From: rtty-bounces at contesting.com [mailto:rtty-bounces at contesting.com] On
>Behalf Of Jerry Pixton
>Sent: Monday, May 31, 2004 7:03 AM
>To: rtty at contesting.com
>Subject: [RTTY] signal on 14.080?
>
>Anyone,
>
>This old dog is trying to learn new tricks. What modulation are the
>signal(s) that generally are around 14.080?
>
>It sounds to me as if it where a rtty signal, that is I only hear several
>tones, the shift seems to be 170 hz but the baud rate is much higher. I
>have tried to decode it at other baud rates and I have tried ASCII codes
>but no print.
>
>It is not bursty like AMTOR, which often is on this frequency, although it
>does seem to have short transmissions - I just switch to a new decoder and
>it is gone for a while.
>
>Jerry, W6IHG
>------------------------------------------
>Dr. Jerry R. Pixton, PIXOS Designs LLC
>http://www.pixos.com/designs/RadioTuner/
>jpixton at shentel.net
>------------------------------------------
>
>
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------------------------------------------
Dr. Jerry R. Pixton, PIXOS Designs LLC
http://www.pixos.com/designs/RadioTuner/
jpixton at shentel.net
------------------------------------------


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