Dave KK7SS wrote: > > Just thought I'd ask, as there are two common ways to do it: > One is to shift the filter passband and the other is to adjust the LO > injection frequency. > > My IC7200 had the 'hiss' problem. Using IF shift would reduce it but would > also tend to muffle the audio. Didn't like that. :( >
But shifting the LO injection frequency would worsen the carrier suppression. I used to spend a lot of time fiddling with analog rigs trying to do the same thing. Got it sounding nice, then noticed that when I keyed the mic the output meter was showing a reading even though there was no modulation. :( I run my K3 in SSB with the filter centered on 1.4kHz and it sounds great to me. ----- Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://elecraft.365791.n2.nabble.com/KX3-LO-injection-tp6429871p6430256.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
