I'm seeing 4.1Khz max audio frequency on AM with my 6Khz roofing filter. Perhaps Lyle is working a little magic?
73, Barry N1EU On Sat, Jan 31, 2009 at 2:00 AM, Joe Subich, W4TV <li...@subich.com> wrote: > > >> I'd love an excuse to spring for a 13Khz roofing filter ;-) > > The 13 KHz roofing filter with 4.2 KHz maximum audio frequency > sounds quite good now but I'm looking forward to a bit more > high end when Lyle gets it done. 6 KHz would be a very good > match to the 13 KHz filter but I'd be happy with 5.5 KHz. > > 73, > > ... Joe, W4TV > > > > >> -----Original Message----- >> From: elecraft-boun...@mailman.qth.net >> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Barry N1EU >> Sent: Friday, January 30, 2009 5:44 PM >> To: wayne burdick >> Cc: elecraft@mailman.qth.net >> Subject: Re: [Elecraft] FM and AM Bandwidth >> >> >> On Fri, Jan 30, 2009 at 9:45 PM, wayne burdick >> <n...@elecraft.com> wrote: >> > >> > On Jan 30, 2009, at 1:11 PM, Barry N1EU wrote: >> > >> >> Lyle Johnson wrote: >> >>> >> >>> In the case of AM, we will be increasing the upper audio >> frequency >> >>> response. >> >>> >> >> This is good news Lyle. I've been starting to enjoy what >> a great SWL >> >> radio the K3 is and a little more bandwidth will make it even >> >> greater! >> > >> > Meanwhile, try using SSB to copy AM signals. This uses the same >> > crystal filter (6 kHz) but allows for around 4 kHz of AF bandwidth. >> >> Thanks Wayne. Yes, I do that sometimes! I also sometimes >> listen with K3/LP-PAN/Winrad because the 5.5Khz AF and sync >> detector combo make for real listening pleasure. >> >> I'd love an excuse to spring for a 13Khz roofing filter ;-) >> >> 73, >> Barry N1EU > > > > _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
