[Lowfer] SIW WSPR15

[Michael Sapp]

Garry: Well, I left the wspr15 running overnite on the morning of the 13th 
and did not have any sunrise enhancement. It seems that SIW is unreadable 
until the night time skywave goes away. The first decode was earlier today 
than on the 13th. Now mid winter may be different under very cold and quiet 
conditions as that is usually when I get a good QRSS capture on WM at night 
which seems to be seven to 10dB down from SIW. But most of the time the 
daylight propagation for SIW seems better here.

Who knows, perhaps utility grid transmission line or railroad track 
conductors enhance the path from Pitt to Chicago ~:)

It was good to see WSPRnet accept the SIW data this morning...

73 Mike wa3tts


----- Original Message ----- 
From: "Garry" <k3siw at sbcglobal.net>
To: "lowfer list" <lowfer at mailman.qth.net>
Sent: Thursday, September 15, 2016 4:44 PM
Subject: Re: [Lowfer] SIW WSPR15


> Mike, thanks for the nice report on lowfer SIW. Sorry the schedule is not 
> what was originally intended. Seems to be shifted a day and if that's the 
> case that's okay, will keep it like that. The SNRs are impressive for a 
> 437 mile path in daylight. I've noticed a repeatable signal boost for 
> WH2XND on 75 kHz around local sunrise. Wonder if the same happens at 185 
> kHz.
>
> 73, Garry, K3SIW, EN52ta, Elgin, IL
>
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