Jason, Try the exciter / amp combo into a dummy load to rule out RF feedback. If the problem goes away then you have a direction to proceed, i.e. too much RF in the shack, improper grounding of the two rigs, maybe you need some ferrite beads over the coax between the exciter, and amplifier, etc. When operating into an antenna, does it still happen with the mic gain at minimum, or get worse when you pick up the microphone? Regards, Jim WD5JKO --- Original Message --- From: "Jason Login" <[EMAIL PROTECTED]> To: [email protected] Subject: [AMRadio] CE100 audio problem
> > > > > > > > > >--- Bob Login >--- [EMAIL PROTECTED] > >--- EarthLink: The #1 provider of the Real Internet. > > >Hi, >I have a CE100 that I'm trying to use as an exciter for > >a linear. On AM as it heats up it generates a rumbling > >sound (it self modulates..sounds like the background > >noise you hear on a windy day in an open mic). It > >works FB on CW. Checked all the tubes and cleaned the > >relay. Caps and resistors look good in the V1 the first audio. > >Anyone out there familiar with this rig or who has a suggestion? > >Thanks, Bob, AA8A > > > > > > >--- StripMime Report -- processed MIME parts --- >text/html (html body -- converted) >The reason this message is shown is because the post was in HTML >or had an attachment. Attachments are not allowed. To learn how >to post in Plain-Text go to: http://www.expita.com/nomime.html --- >_______________________________________________ >AMRadio mailing list >[email protected] >http://mailman.qth.net/mailman/listinfo/amradio
