I find the stock 2.8k sideband filter to be quite sufficient for AM talk or voice when used in the LSB or USB mode. The master oscilllator is so stable and with fine tuning one can get spot on the carrier freq. S/N ratio and adjacent channel selectivity are greatly improved. IMHO, would not get the 6k or 13k filters unless one intended to operate/transmit on AM or FM. If you want serious fidelity, go to digital HD or satellite radio through good speakers. Mike, AC5P
--- On Wed, 12/31/08, KM5Q <k...@mac.com> wrote: From: KM5Q <k...@mac.com> Subject: RE:[Elecraft] K3 as a SW receiver To: elecraft@mailman.qth.net Date: Wednesday, December 31, 2008, 1:13 AM 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 KM5Q K3 #764 _______________________________________________ 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
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