[pskmail] Re: observation
- From: Roger G6CKR <radio@xxxxxxxxxxxxxxx>
- To: pskmail@xxxxxxxxxxxxx
- Date: Sun, 09 Jan 2011 10:29:18 +0000
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
> >
> >
> >
> >
> >
>
Other related posts:
