Bill, The 5 kHz width indicated for AM is the *audio* bandwidth, not the IF. The IF bandwidth must be more than 2 times the audio bandwidth for an AM signal - so your 12 kHz filter is good.
Remember that the 6 kHz filter must be used for AM transmit. AFAIK, most broadcast stations limit their transmitted audio to 5 kHz, so you are not likely to obtain much better fidelity than the K3 DSP currently allows. 73, Don W3FPR Bill Maddock wrote: > Guys, > > Just got done assembling my second K3 and this one has a 13 Khz > filter where #1 had 6 Khz - I like to do shortwave listening - thought > the wider filter would give better fidelity, but DSP only goes > 5Khz wide is there a mode for this? I assumed with the 13khz roofer > it would be opened up to 10 khz or more? > > Thanks and 73, > > Bill N4ZI K3 #1059 & K3 #2914 > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
