[CW] Weird CW signals

Donald Kemp nn8b.oh at gmail.com
Fri Jan 30 18:03:41 EST 2026


yea, that was what the digital signal looked like.

On Fri, Jan 30, 2026 at 5:59 PM John <johnk5mo at gmail.com> wrote:

> <iframe width="843" height="474"
> src="https://www.youtube.com/embed/d3j246g3Wpg" title="Russian Navy
> Wide FSK Intruder Reappears On 40m Band | Signal Phantom"
> frameborder="0" allow="accelerometer; autoplay; clipboard-write;
> encrypted-media; gyroscope; picture-in-picture; web-share"
> referrerpolicy="strict-origin-when-cross-origin"
> allowfullscreen></iframe>
>
> On Fri, Jan 30, 2026 at 5:57 PM John <johnk5mo at gmail.com> wrote:
> >
> > https://www.youtube.com/watch?v=d3j246g3Wpg
> >
> > On Fri, Jan 30, 2026 at 5:53 PM Donald Kemp <nn8b.oh at gmail.com> wrote:
> > >
> > > Not making any sense.
> > > Tried to let fldigi copy it but it was just garbage.
> > >
> > > Would spread spectrum look like that?
> > >
> > > On Fri, Jan 30, 2026 at 5:50 PM John <johnk5mo at gmail.com> wrote:
> > >>
> > >> That's the ones!
> > >>
> > >> They've been on and off 40M for some months now.   If you try and copy
> > >> what sounds like CW at times, you'll notice that it repeats.
> > >>
> > >> John K5MO
> > >>
> > >> On Fri, Jan 30, 2026 at 5:47 PM Donald Kemp <nn8b.oh at gmail.com>
> wrote:
> > >> >
> > >> > I amseeing them on
> > >> > 7041.50 kHz
> > >> > 7048.50 kHz  with a digital sig like ft8
> > >> > 7061.50 kHz  with a digital sig like ft8
> > >> > 7068.50 kHz
> > >> >
> > >> > On Fri, Jan 30, 2026 at 5:22 PM John <johnk5mo at gmail.com> wrote:
> > >> >>
> > >> >> This is some sort of very slow wide shift FSK .
> > >> >>
> > >> >> I've seen it reported elsewhere and heard it here too.
> > >> >>
> > >> >> John K5MO
> > >> >>
> > >> >> On Fri, Jan 30, 2026 at 5:07 PM D.J.J. Ring, Jr. <
> djringjr at gmail.com> wrote:
> > >> >> >
> > >> >> > People are reporting these strange CW signals across the 40m
> band.
> > >> >> >
> > >> >> > Weird CW signals
> > >> >> >
> > >> >> > Perhaps they are trying to emulate a mechanical key with no
> audio control (although a vertical wouldn’t sound like that)
> > >> >> >
> > >> >> > But what could be a purpose?
> > >> >> >
> > >> >> > Another weird thing is that those sigs are present on four
> frequencies simultaneously with S9+:
> > >> >> >
> > >> >> > 7041.50 kHz
> > >> >> > 7048.50 kHz
> > >> >> > 7063.00 kHz
> > >> >> > 7070.00 kHz
> > >> >> >
> > >> >> > Weird CW on 40m.
> > >> >> >
> > >> >> > Any thoughts on this?
> > >> >> >
> > >> >> > ______________________________________________________________
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> > >> >> > =30=
> > >> >> ______________________________________________________________
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> > >> >> =30=
> > >> >
> > >> >
> > >> >
> > >> > --
> > >> > 73,
> > >> > Don, NN8B
> > >> > "Meanwhile, with ever increasing power, the telegraph has become
> not only the master of commerce, but the tongue of mankind." - James D.
> Reid, 1886
> > >> > ______________________________________________________________
> > >> > CW mailing list
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> > >> >
> > >> > =30=
> > >> ______________________________________________________________
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> > >> =30=
> > >
> > >
> > >
> > > --
> > > 73,
> > > Don, NN8B
> > > "Meanwhile, with ever increasing power, the telegraph has become not
> only the master of commerce, but the tongue of mankind." - James D. Reid,
> 1886
> > > ______________________________________________________________
> > > CW mailing list
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> > > =30=
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> =30=



-- 
73,
Don, NN8B
"Meanwhile, with ever increasing power, the telegraph has become not only
the master of commerce, but the tongue of mankind." - James D. Reid, 1886
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