I'd recommend the 400 Hz over the 250 Hz 8-pole filter if it's your only CW filter. This is the roofing filter; you can still dial the IF bandwidth down (to 50 Hz) for more selectivity. If you have the budget for an additional CW filter, the 200 Hz 5-pole might be a good second CW filter. I have the 400 Hz and 250 Hz 8-pole filters, and there isn't really that much difference between them.
The 6 kHz AM filter is required for AM transmit (and it's also used for ESSB, should you choose to use ESSB). The 13 kHz FM filter cannot be used as the AM transmit filter at this time. Dick, K6KR -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of WB8ENE Sent: Sunday, February 14, 2010 10:43 AM To: [email protected] Subject: Re: [Elecraft] Considering K3 I am also considering a K3, and I really enjoy reading all the comments on K3 owners' experiences and preferences. I am planning on ordering a K3 at Dayton this year after I take a look at one. I plan on getting the basic 100 watt unit with the standard SSB filter and one CW filter. I've received a few comments on Yahoo groups about this, but I still can't decide on the 400 or the 250Hz filter. I like to tune across the band with the wider filter selected and then go to the narrow filter to make the contact. It seems to me that the 250Hz filter would be the way to go. I understand that there is actually only 65Hz bandwidth difference between these two filters. I enjoy operating the NAQCC QRP sprints and SKCC sprints, but otherwise, do not do much contesting. I would also like to know if it is possible to transmit on AM using the wider FM filter. I haven't used either of these modes on HF in the past several years, so I would probably not purchase one of these wider filters at this time, but it would still be nice to know. 73, Art WB8ENE -- View this message in context: http://n2.nabble.com/Considering-K3-tp4568589p4571166.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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
