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Stefan,
five watts to a good antenna has been known to work
wonders ;-)
Actually virtual audio cable
could possibly be the culprit. The newer version 4.xx can resample between
different samplerates (12000 from wsjtx to 48000 for Speclab?), and may apply
some smart interpolation which tries to keep the buffers at more or
less constant length. This could indeed create some nondeterministic jitter,
perturbing the MFSK demodulation. I have so far only used the older VAC 3 here,
but this only works with identical samplerate and format at input and
output.
Best 73,
Markus (DF6NM)
Sent: Monday, October 29, 2012 12:21 AM
Subject: Re: LF: no decodes, help needed
Wolf,
I am audible on LF with 5W TX power? That
is 240 km (ish). Really?
73, Stefan
Am 28.10.2012 20:18, schrieb
wolf_dl4yhf:
>
> Am 28.10.2012 20:08, schrieb Steinar
Aanesland:
>> Wolf, The freq is still 136.000 + 1430Hz ?
> Yes,
WSJT-X reports 1430 Hz with the HF radio tuned to 136.000 kHz in
>
USB.
>
> Transmitting every 2nd 2-minute interval.
>
>
But I didn't get a decoded callsign for some time now. Sync points
>
between 0 and 3.
> Signal still audible here in JO42 .
>
> 73,
Wolf .
>
>> LA5VNA Steinar
>> loc:JO59jq
>> Mal
and spam filtering: STRONG
>> www.opera.no
>>
>>
>
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