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Graham,
yes it's certainly a good option to let SpecLab do
the audio conversion, and feed Opera or WSPR etc. through a
virtual audio cable (VAC). Within SpecLab you can either employ a digital
NCO and mixer, or use the frequency shifting option in the FFT filter
block. The latter is quite flexible: you may shift only a part of frequency
range, allowing you to stitch together subbands originating from different
parts of the spectrum, to the end of processing both in a
single Opera instance (eg. 10 Hz around Joe's 137.777 beside 90
Hz around the usual 137.545).
Best 73,
Markus (DF6NM)
Sent: Sunday, December 09, 2012 10:29 PM
Subject: Re: LF: Fw: LF 137 GOOD PROP
Ok Markus
Well 'we' can set up monitors , did
that for Joe on 136 (500 ? ) , a while back ,
but most of the stations are not manned ,
and with the time window , really need to post
the day before , difficult to monitor
8/32 on the same qrg as well , need
2 bfo's or do something clever with spec lab
to produce the second carrier qrg ?
Did Stefan decode via spec lab for some
time , changing the audio frequency ?
if the delay was constant , it should not be
a problem for ros/opera modes ?
G..
Sent: Sunday, December 09, 2012 3:57 PM
Subject: Re: LF: Fw: LF 137 GOOD PROP
Mal was on 136172.84 Hz, sending one round of
Op8 from 15:26 to 15:34. He then started Op32 at 15:38, which was
apparently aborted at 15:50.
73, Markus (DF6NM)
Sent: Sunday, December 09, 2012 4:47 PM
Subject: Re: LF: Fw: LF 137 GOOD PROP
Which speed Mal ?? ,
Most monitors will be un-manned , if you
can Tx in band , assured of wide
monitoring network
Let me know , what the times
will be and will post for monitors on
group
73 -G.
Sent: Sunday, December 09, 2012 3:37 PM
Subject: LF: Fw: LF 137 GOOD PROP
ps testing Opera as well on 136.173 RF not
dial
----- Original Message -----
Sent: Sunday, December 09, 2012 3:20 PM
Subject: LF 137 GOOD PROP
LF
Condx good to Moscow at present. G3KEV visible at 1514
utc. Qrs 20 probably ok for a CW qso later
de mal/g3kev
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