[RFI] RTTY signal on 3595.5 kHz

[MICHAEL ST ANGELO]

I heard it about 0318 UTC. It sound like an AMTOR signal. Coud be an experimenter.


Can anyone decide it?


Mike N2MS

 

> On January 25, 2018 at 6:01 PM Don Moman VE6JY wrote:
> 
> 
>     checking a recording here... something similar was noted at 0558 Jan
>     16th.... very weak in Alberta. looks like two digital signals centered
>     around 3595.450 khz... at the beginning of each segment there was short
>     pair of tones 100 hz apart. and at the end each "channel" sent some tones.
>     the tones were about 300 hz apart.
> 
>     Another recording around the same time Jan 18 shows several digital signals
>     in the area but not on the same pair, and then some USB voice and then some
>     ALE soundings on 4596 - KE6IYC7 was decoded.
> 
>     I think this is a fairly active area for all sorts of experimental things.
> 
>     73 Don
>     VE6JY
> 
> 
> 
>     On Thu, Jan 25, 2018 at 2:36 PM, David Eckhardt
>     wrote:
> 
>         > > I do not hear it here in N. Colorado (Loveland area).
> > 
> >         Dave - WØLEV
> > 
> >         On Mon, Jan 22, 2018 at 5:38 PM, Kenneth G. Gordon <
> >         kgordon2006 at frontier.com mailto:kgordon2006 at frontier.com
> > 
> >             > > > wrote:
> > > 
> > >         > > 
> >             > > > I am, again, asking for help from members of this forum. Can anyone here
> > >             help me and a
> > >             friend, Joe WA7FWC, identify an RTTY signal which appears to be
> > >             continuously
> > >             transmitting on or near 3595.5 kHz?
> > > 
> > >             This signal is, apparently, on 24/7 and from my listening to it, appears
> > >             to be sending the
> > >             same series of characters over and over again.
> > > 
> > >             When I listened to it last night, I also heard someone on CW calling 1RN,
> > >             the first region net
> > >             of the NTS, so this RTTY signal is very close to the 1RN net frequency.
> > > 
> > >             I did not note the time last night, nor the call of the CW calling
> > >             station, but will try to do that
> > >             this evening. The signal level here in Idaho is "weak, readable". In
> > >             Oregon where Joe is, it
> > >             is often very loud.
> > > 
> > >             I and Joe have tried to decode this signal using FLDIGI, but so far our
> > >             efforts have
> > >             apparently failed....ALTHOUGH, I did copy for a bit what looked to me
> > > 
> > >         > > like
> > 
> >             > > > a series of 1's
> > >             and 0's at one time.
> > > 
> > >             It appears to be at least 75 wpm RTTY and the bandwidth appears to be
> > >             slightly wider than
> > >             170 Hz, according to FLDIGI.
> > > 
> > >             Joe and I have tried both USB and LSB and our results are still pretty
> > >             much nil.
> > > 
> > >             Can anyone help with this?
> > > 
> > >             We suspect it is either a governmental station, or a foreign station, but
> > >             don't know any more
> > >             than I have listed above. I also suspect (IF my copy of 1's and 0s' is
> > >             accurate) that it is
> > >             actually sending some sort of digital data.
> > > 
> > >             Has anyone else heard this station?
> > > 
> > >             Ken W7EKB
> > > 
> > > 
> > >             ---
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> > >         > > 
> >         --
> > 
> >         *Dave - WØLEV*
> >         *Just Let Darwin Work*
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