Re: [Elecraft] New Bands
How about the KX3? I tried to dial it up there and it bounced to 44.000. Tim On Wed, Jan 25, 2023 at 12:14 PM Wayne Burdick wrote: > 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 > 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 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 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 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 ae...@worldwidedx.com > -- Owner, worldwidedx.com AE6LX, Amateur Radio __ 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
Re: [Elecraft] New Bands
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 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 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 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 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
Re: [Elecraft] New Bands
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 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 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 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
Re: [Elecraft] New Bands
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 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 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 arch...@mail-archive.com
Re: [Elecraft] New Bands
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 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 k1ep.l...@gmail.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
Re: [Elecraft] New Bands
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 arch...@mail-archive.com
[Elecraft] New Bands
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 arch...@mail-archive.com
