Hi Bjorn, The 6 kHz filter "is" required for AM Transmit. The FM filter will not work.
The FM filter will work on RX, but will not be as good with image rejection as the 6 kHz filter. I would suggest starting with just the 6 kHz filter. Then if you feel like you want/need the FM filter for AM receive, go for it. 73 Greg AB7R -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Björn Mohr Sent: Sunday, February 17, 2008 3:17 AM To: [email protected] Subject: [Elecraft] K3 AM vs FM filter Hi gang, As I understand it the FM filter would be best for AM BC with its wider bandwidth. Not perfect, but certainly better than the "AM filter" that I guess is aimed towards voice AM communications. Has anyone tested the FM filter for AM broadcast reception? If so, what is your comments and advice? Is it suitable for this purpose, or are there a better solutions out there. Regarding AM voice operation, I do one AM contest per year. I guess it would be possible to use the FM filter also for AM TX and restrict the bandwidth on a DSP/audio level, or is this a bad idea? 73 de Björn /SM0MDG _______________________________________________ Elecraft mailing list Post to: [email protected] 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 _______________________________________________ Elecraft mailing list Post to: [email protected] 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
