Graham
I have been monitoring your Opera and WSPR sigs since 1800. Wellbrook Loop +
SDR-IQ with VAC to the dual decoders. The Loop was positioned with
North/South nulls until 23:05 (you are 13 deg E of N from here). As there
was no copy of your Opera from 20:14 I turned the loop at 23:05 and I am now
copying your Opera again with QSB.
I am now QRT. Thanks for the tests very interesting.
73 Terry
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Graham
Sent: 12 February 2012 20:58
To: [email protected]
Subject: Re: LF: Dual Beacon test wspr & OP4 -now-
Having a problem stopping the decodes , now have 25 dB atten in the
Tx drive path, power meter is not moving more than the needle width
... still showing with PA0A ,
--------------------------------------------------
From: "James Moritz" <[email protected]>
Sent: Sunday, February 12, 2012 8:28 PM
To: <[email protected]>
Subject: Re: LF: Dual Beacon test wspr & OP4 -now-
> Dear Graham, LF Group,
>
> Both signals decoding 100% last time I looked. Bear in mind that QSB is
> causing 20dB or more of variation within a single transmission period at
> the moment, making each transmission different to every other, so you will
> want to "average" the results over several transmissions at any particular
> level.
>
> Cheers, Jim Moritz
> 73 de M0BMU
>
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