[Skimmertalk] [RBN-OPS] Phantom decoders on 15m.

[Björn Ekelund]

I don't see the same with my RP-16, Pete. When the CW sections on
15-12-10-6m are
quiet (which is most of the time here in SM) I get between 0 and 3 decoders
per band.

The exception is the 192kHz receiver covering the beacon band on 10m since
I sometimes
have an noisy, 10kHz wide harmonic from some neighbors electronics and that
kicks up a good
dozen decoders.

Have you tried listening to the RP with e.g. HPSDR to make sure there is no
intermod on 15m?

73,

Björn SM7IUN

Den lör 29 juni 2019 kl 21:23 skrev Pete Smith <n4zr at comcast.net>:

> I have my test setup ready now, so that I can compare any two antennas or
> any two Skimsrv SDRs in real time.  In the process, I've found something
> that puzzles me.  My RP-16 consistently shows 10-20 decoders active on 15
> meters on Skimsrv, while my QS1R, fed from the same antenna and preamp,
> shows zero.  Needless to say, I can't hear any CW signals on that band.
> Previously I've noticed that nearby thunderstorm activity can generate
> phantom decoders in 160-40, but this happens whatever the weather.
>
> Has anyone else noticed this?  Since only the Red Pitaya displays these
> decoders, I'm wondering if it might be something inherent in that receiver
> or the firmware.
>
> --
>
> 73, Pete N4ZR
> Check out the Reverse Beacon Network
> at <http://reversebeacon.net> <http://reversebeacon.net>, now
> spotting RTTY activity worldwide.
> For spots, please use your favorite
> "retail" DX cluster.
>
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