G'day, Aren't there still some issues re VFO management when wide range tuning. The band switching can go pear shaped.
Regards, Mike VP8NO ----- Original Message ----- From: "wayne burdick" <n...@elecraft.com> To: "KM5Q" <k...@mac.com> Cc: <elecraft@mailman.qth.net> Sent: Wednesday, December 31, 2008 6:16 AM Subject: [Elecraft] Re: K3 as a SW receiver | KM5Q wrote: | | > For AM SW listening be sure to get the "FM" filter (13 kHz). It gives | > you the width you need for the audio bandwidth you expect. The normal | > SSB filter (I have the 2.8) is too restricting for AM. | > | > However, I find that switching mode from AM to SSB reduces severe | > fading and distortion, much like AM synchronous detection does (fills | > in the missing carrier). It's a good technique, at least until synch | > detection is implemented in the firmware. | | Windy, | | Also note that our 6-kHz 8-pole filter is targeted specifically at AM | operation, and will provide better adjacent-channel QRM rejection than | the FM filter, if needed. A 6-kHz filter is also required for AM | transmit (enforced in firmware). This ensures excellent 2nd-I.F. image | rejection. | | 73, | Wayne | N6KR _______________________________________________ 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
