That is a really good question Lee and the answer can be very complicated. It depends is probably the best answer.
An everyday experience is what I used in my determination to purchase neither was: When in my daily 3710 LSB group QSO there would regularly be an interfering station on 3713 who was a bit wide. The rest of the 3713 group was not an issue, only this one station. Since he was jus above us and we were on LSB none of the filters would really offer much relief. At other times there would be stations on 3707 that had somewhat poor IMD resulting in some power in what would be their USB. This would interfere and depending on how wide the IMD was a sharper filter might help, but maybe not. What it all boiled down to, for me, was how much strong interference was I experiencing and was the bulk of it in the narrow gap between the filter differences. Since the filters only serve to protect the DSP from overload I have not found compelling reasons to purchase one. When I do purchase one it will be the 2.1 as it offers the most promise with nearby interference and overload. That was just where I wound up:) Very 73 - Mike - K9JRI > On Aug 26, 2018, at 8:45 AM, Lee Murrah via Elecraft > <elecraft@mailman.qth.net> wrote: > > I am looking to upgrade my K3S with filters and am using the DX version of > the radio as a guide. What is the advantage of the 2.8 KHz filter over the > stock 2.7? What does the 2.1 KHz filter do for you? > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k9...@mac.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
