[Lowfer] Tonight's Target, 1750 M Watering Hole

[JD]

On Thu, January 12, 2017 8:13 am, Garry wrote:
> Interestingly, despite only sending about half the time, wspr15 messages
> can still decode so the forward error correction is impressive.

It certainly is! At the time I wrote my midnight report, I hadn't looked
at all the Argo captures yet.  When I checked more closely and saw the
ones that included the 0200 time slot, it became clear that it was not a
propagation anomaly; the QRSS transmission was indeed being interrupted,
but I had no idea that it was by the QRSS keyer.  Most fascinating.

>From the ALL_WSPR log, one can infer that it took quite a few iterations
to reassemble the payload:

170112 0200   7 -34 -0.6   0.185185  K3SIW EN51 0            0  3065    6

...but at least it had the header intact and was able to proceed. None of
the time slots without a header decoded, no matter how strong the signal.

More after I've had a chance to examine the rest of the night's results.

John