[pskmail] Re: observation
- From: "Rein Couperus" <rein@xxxxxxxxxxxx>
- To: pskmail@xxxxxxxxxxxxx
- Date: Sun, 9 Jan 2011 12:09:59 +0100 (CET)
Could it be that you use a narrow filter which is not centered correctly?
Rein
>Both my afc ranges were set to 20Hz but I was only the observer.
>But I will again state that the data part of the psk500R signal was
>shifted right with respect to it's own start and end guide tones unless
>I am misunderstanding the way those start and end tones behave.
>Roger
>
>On Sun, 2011-01-09 at 10:17 +0100, Rein Couperus wrote:
>> This the combined effect of AFC and RSID... If one of the stations is not
>> stable,
>> the qso starts to move up and down the band.
>> It is advisable to limit the AFC range to 20 Hz max. which is more than
>> enough for
>> keeping the decode during a few packets. RSID sends Mode and Frequency...
>>
>> Rein PA0R
>>
>> >On Sun, 2011-01-09 at 08:53 +0000, Roger G6CKR wrote:
>> >> time 08:37 UTC Sunday 9 Jan
>> >> frequency 10.147 MHz.
>> >> Watching the current traffic I noticed that the signal was off set to
>> >> the right of the PSK500R indicators and was becoming less readable.
>> >> I have a second machine which was monitoring 10.148 MHz from the same
>> >> receiver. I reset this machine to 10.147 and observed the same effect.
>> >> I then added 50 Hz to the fldigi pskmail setting and the second machine
>> >> resolved the signal better.
>> >> unfortunately I did not get the station call signs as I restarted
>> >> pskmail as well as fldigi and the second machine did not add any calls
>> >> to it's list.
>> >> I did start a recording towards the end and will check it later.
>> >> From what I could see there did seem to be quite a fer resends of waht
>> >> looked like maybe an echolink list as "in conference appeared a few
>> >> times
>> >> traffic finished by 08:50 when I thought to look.
>> >>
>> >> 73 Roger G6CKR
>> >
>> >Should have clarified the details of "offset".
>> >shifted to the right in the waterfall in respect to the guide tones
>> >right being the conventional higher in frequency.
>> >73 Roger
>> >
>> >
>> >
>> >
>> >
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