It is WSPR. Make sure you clock is sync.
It would be USB on 1836 + 1khz +/- their audio. The cycle is just less
than 2 minutes. That would move it up to 1838 at the top end.
Mike va3mw
On Mon, Oct 3, 2016 at 4:24 PM, Rik van Riel <riel@surriel.com> wrote:
> On Mon, 2016-10-03 at 15:06 -0500, K4SAV wrote:
> > I asked this question on QRZ and never got a good answer. I am sure
> > many on this reflector know the answer to this question.
> >
> > What is the stuff on 1838 kHz that sounds like a continuous carrier
> > with
> > no modulation. Looking at it on the band scope I can see some
> > modulation
> > (I think) but it is very small and it is not discernible by ear. The
> > signal has a regular transmission length (maybe 1 minute, I didn't
> > time
> > it). I know what PSK31 and JT65 sounds like but that is not what I
> > am
> > hearing.
>
> You are hearing JT9.
>
> The WSJTX software can decode both JT65 and JT9 at
> the same time, if you select JT9+JT65 as the mode.
>
> 73 de AB1KW
> --
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