500 or 400Hz 8 poles (xtals) must be your choice for the narrow roofer when you be on CW.If you are a contester,narrower BW will be even better like 250 Hz but always 8 poles,in my K3 I only use the 500Hz and with the DSP set at 200Hz its a brick,very selective RX. AD4C
"For a refined ham it is compulsory to own a k3" --- On Tue, 2/16/10, [email protected] <[email protected]> wrote: From: [email protected] <[email protected]> Subject: [Elecraft] Roofing filter for CW To: [email protected] Date: Tuesday, February 16, 2010, 6:50 PM As a prospective buyer of the K3, and a 100 percent CW op, I am wondering which of the roofing filters is the correct choice, assuming I am buying only one?? I usually find that when operating weak sigs with my Pro 3, a bandwidth of about 600 to 800 hz is plenty adequate in normal QRM conditions. With that is mind, am I better off with the 1000 or 500 HZ 8 pole filter??? Bill, N6FB ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
