While in the shack today, I will be FLARQing on 10137 plus 1000 HZ AF. Andy K3UK FN02hk
On Jan 5, 2008 4:02 AM, Rein Couperus <[EMAIL PROTECTED]> wrote: > Being so close to another net frequency is not going to work unless you > provide a proper filter. > > Using flarq efficiently you need to > * use a 500 Hz filter or better > * use a distance of 500 Hz. > > We have tried to put 2 pskmail servers on a 250 Hz distance but they > qrm'ed each other in such a way that is was not feasible. We had to > increase the distance to 500 Hz. > > To use a broad filter and let the DSP do the filtering is basically wrong. > The AGC will wipe out the flarq signal to the effect that all packets > are damaged and no transfer is possible. > > To take advantage of the small bandwidth of PSK63 you need to have a matched > (100 Hz) > filter. If you don't have that it makes more sense to increase the speed to > PSK250. > That has the added advantage of being less frequency-critical. > > Just some of the experience we gathered with pskmail... > > 73, > > Rein PA0R > > > > > > > > Pronet came on and I was unable to print anything for > > it, my beacon will be 10.137/1500hz, I have one single > > short file in the folder for tranfer. > > > > Russell > > > > -- > http://pa0r.blogspirit.com > > > Announce your digital presence via our Interactive Sked Page at > http://www.obriensweb.com/drsked/drsked.php > > > View the DRCC numbers database at > http://groups.yahoo.com/group/digitalradio/database > > Yahoo! Groups Links > > > > -- Andy K3UK www.obriensweb.com (QSL via N2RJ)
