[Boatanchors] All boatanchors defeated. What was it?

[B Farrell]

Sounds like a pile-up calling DX, but you couldn't copy the DX because no
path/propagation between you and the DX.

On Sunday, October 15, 2017, McDonald, J Douglas <jdmcdona at illinois.edu>
wrote:

> I'm a listener only on my boatanchors.
>
> Tonight all of them were totally defeated. Up until right now, 755 PM CDT,
> there was
> some something going on on 40 meters, between roughy 7020 and 7025 kHz CW.
> I abruptly stopped.
>
> A smaller version continues on 7010-7013.
>
> Every few seconds a dense cluster of CW signals appeared, sending call
> signs,
> then stopping all dead. They were typically 100 Hz apart, not on a grid,
> so some
> were as close as 25 Hz.
>
> Even the R390a with at 100 hZ and the audio filter could nowhere near
> separate them .. and my ear barely could even with that help.
>
> My Airspy at 40 hZ bandwidth and 1000 order filter could do the job,
> barely.
> At 40 Hz ringing got fairly bothersome at the high speed.
> These had to be computer generated signals because of the time clustering.
>
> Some sort of contest?
>
> A new fad?
>
> Doug McDonald
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