Stewart G3RXQ wrote: > > Why not an LC filter for AM reception instead of an expensive > crystal roofing filter ? > I was going to suggest that, then I thought of the points Lyle made and guessed that it wouldn't work. But if it works well enough for casual listening and people are willing to accept the limitations then perhaps there is scope for someone to have this made up as a kit.
As for opening up the DSP to 4KHz when you only have a 2.7KHz filter, I didn't realize you could do this, since I have both the AM and FM filters. I can't really see the point. As the DSP filters are sharper than the 2.7KHz crystal filter I guess it lets you hear a bit more bandwidth, but it's a bit misleading. The AM filter is quite sharp already so I doubt if allowing the DSP to be wider would gain you much. ----- Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/K3-FM-filter-required-for-full-AM-receive-width-tp17052986p17066225.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ 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
