Hello everyone, I was hoping that some of the more experienced users of digital communication would be able to shed some light on the problem I am experiencing regarding loading up PSK 31 on 20 metres. I still have the problem with my computer, Digipan and an Icom 746 and I am unable to remove ALC when loading up.
It has become more severe and now affects 15 and 17 metres, and I have tried every way possible to tune up without having any ALC showing but it is just impossible. There is no problem at all in tuning up 10 and 12 metres and the RF control on the 746 adjusts the ALC as one would expect. I have transmitted on 15, 17 and 20 metres using SSB near the same frequencies, after the band had gone dead, and there is no problem in making adjustments for an SSB output of 30 and 100 watts with a clean audio and the appropiate amount of ALC Despite being told that the PC soundcard will be unable to differentiate between one frequency or another there seems to be no sensible answer to this problem. I can tune properly for a PSK transmission on every band with the exception of 15, 17 and 20 metres Could the soundcard have been damaged in some way ? Is there an adjustment that can be made on the soundcard ? Does anyone have any idea why this is happening ? Surely I cannot be the first to experience this seemingly unsolveable problem. Any ideas will be appreciated, Kind regards, Mel G0GQK Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
