When you say you have no problem with "loading and tuning correctly", exactly what process are you following? Do you have an antenna that is resonant on all these frequencies? Are you using an autotuner between the 746 and the antenna? It sounds like perhaps you have a problem causing a high SWR on 20m which is causing your ALC to run up as the rig "folds-back" the output as a protection measure.
tim ab0wr On Saturday 11 February 2006 11:23, Mel wrote: > I'm hoping someone in the group can help me with this little problem. > For months I have been using Digipan on 20 metres with an Icom 746, > and quite suddenly two days ago, I couldn't tune up properly with out > masses of ALC showing. > > I use Quickmix to retain the soundcard settings, and the connection > to the computer is via ACC1. There is no problem in loading and > tuning correctly and transmitting on 10, 12, 17,40 and 80 metres. > When I adjust the RF power on the 746 it doesn't matter whether I > move the adjustment clockwise, or anti-clockwise, the ALC will not > reduce. I always tune up using the correct method and have never > transmitted with any ALC showing. > > Can anyone suggest what the problem is ? Is the soundcard damaged > and now unable to be used on 20 metres ? > > > 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 > > > 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/
