> I would like the 250 hz 8 pole filter for cw. Should I also get > the 400 hz filter for ssb.
The 400 Hz filter is far too narrow to be useful in SSB - you dont want a bandwidth less than 1500 to 1800 Hz for voice use although bandwidths as low as 800 - 1000 Hz may be useful for some digital modes. I would not recommend both the 400 Hz and 250 Hz in the same radio. The reference plots for the 250 Hz and 40 Hz filters on the Elecraft web site: http://www.elecraft.com/K3/K3_8_pole_plots.htm show the 250 Hz filter to have a bandwidth of 370 Hz and the 400 Hz filter to have a bandwidth of 435 Hz. There is not enough difference between the 250 and 400 Hz filters for you to notice in actual operation. 73, ... Joe, W4TV > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Scott McDowell > Sent: Saturday, August 30, 2008 11:32 PM > To: [email protected] > Subject: [Elecraft] K3 filters > > > I have a k3/100 ordered and am trying to decide on filters. I > would like the 250 hz 8 pole filter for cw. Should I also get > the 400 hz filter for ssb. Scott N5SM _______________________________________________ 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
