The K3, being a superhet that involves mixers, uses very narrow-band transmit band-pass filtering that doesn't allow operation midway between 10 and 6 meters. So it is excluded in firmware.
That said, the K3 provides very versatile support for external transverters. 73, Wayne N6KR > On Jan 25, 2023, at 11:22 AM, Christopher Hoover <c...@murgatroid.com> wrote: > > What about the K3 for RX on 8m? Mine bounces me to 44.000 MHz if I try to > enter 40.662 MHz via CAT or front panel. > > 73 de AI6KG > > > > On Thu, Jun 27, 2019 at 3:39 PM Wayne Burdick <n...@elecraft.com> wrote: > The K4 should work at 40-41 MHz without modification, though I wouldn't > guarantee specs without performance testing. > > 73, > Wayne > N6KR > > > > > On Jun 27, 2019, at 2:52 PM, Ed K1EP <k1ep.l...@gmail.com> wrote: > > > > Maybe for RX. For TX, you have to consider spurs, harmonics, filters and > > other technicalities. So, it is not trivial. > > > > On Thu, Jun 27, 2019, 17:36 Dennis Moore <den...@mail4life.net> wrote: > > > >> SDR, should just be a modification to the firmware. > >> > >> Dennis NJ6G > >> > >> On 6/27/2019 13:44, David Gilbert wrote: > >>> A friend just advised me of a new FCC Petition for Rule Making that > >>> requests the creation of a new amateur band for 8m somewhere between > >>> 40 and 41 MHz. > >>> > >>> https://ecfsapi.fcc.gov/file/105260090923685/8%20meter%20PRM.pdf > >>> > >>> I doubt it gets any traction, but it makes me curious if any mods > >>> (software or hardware) would be practical to allow the K3 or K3s or K4 > >>> to cover that range. I suspect the upper low pass band filter would > >>> preclude that possibility. > >>> > >>> 73, > >>> Dave AB7E > > > > > ______________________________________________________________ > 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 c...@murgatroid.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
