A bit off topic, but I thought I’d ask anyway. Would using a HA1YA 6 meter transverter with the K3S improve performance on noise level reduction and sensitivity over the stock K3S?
73, John WA1EAZ > On Jul 5, 2019, at 3:17 PM, Conrad PA5Y <[email protected]> wrote: > > Hello Ed, the HA1YA and DB6NT transverters are also considerably better than > the DEMI designs which are 3 generations behind. I have been in serious > pursuit of low PN and low IMD on 144 and 432 and I found that either of the > aforementioned transverters with a K3S were many times better than anything > else. I looked at almost everything out there, it took 2 years but there > really was no other choice. There used to be 3 choices but sadly the Anglian > (144) and Iceni (432) kits from G4DDK are no longer an option, on 70cms I > have an Iceni. With the K3S , Iceni and a TV TX I am achieving TX 3rd orders > of -53dBc, I am so pleased with this. The composite noise @ 20kHz is 33dBc/Hz > better than any other radio that I have measured. On 2m 25dB better for > composite noise I am still working on 2m intemods, so far the whole chain is > -40dbc 3rd orders but I would like to improve this by at least 6dB, the > problem is an LDMOS driver and nothing to do with the K3S or HA1YA > transverter. > > I have a bit more to say about the K3S and TX IMD on 6m in another post. > > Regards > > Conrad PA5Y > > -----Original Message----- > From: [email protected] <[email protected]> On > Behalf Of Edward R Cole > Sent: 05 July 2019 18:02 > To: Elecraft Reflector <[email protected]> > Subject: [Elecraft] (no subject) > > Kjeld, > > I agree with Conrad PA5Y, both Kuhne Engineering or HA1YA make very good > transverters and are available in EU. > > I would add the DEMI L-series transverter which now is made by a company > called Q5 (located in US) for any NA hams reading the mail on this topic. > I use DEMI transverters on digital-eme on 144, 1296, and higher (have had > 144,222, 432, 1296, 3456, and 10-GHz models). > > I also use preamps located at antennas on 6m, 2m, 432, 1296+ Even though > local electronic noise can be high at times, when its not they make a huge > difference. Only for 6m (50-MHz) would I agree that it might not give much > help (but if you have a K3, it needs either a PR6 or other preamp to bring up > 6m &10m sensitivity; not an issue with K3s or K4). MY KX3 with internal > preamp ON = my K3 + PR6 in sensitivity on 6m) > > The early reports on the IC-9700 were not favorable for freq stability > (though I read they had addressed this, lately). Still investment in K3s + > good transverter will beat the IC-9700 without a doubt. > > 73, Ed - KL7UW > > From: Kjeld Holm <[email protected]> > To: Elecraft Reflector <[email protected]> > Subject: [Elecraft] Digital modes on 144MHz only > Message-ID: > > <am0pr03mb553863de40cde9d3f09ee28f9d...@am0pr03mb5538.eurprd03.prod.outlook.com> > > Content-Type: text/plain; charset="us-ascii" > > Digital modes on 144MHz only > > I plan for a second station to use for digital modes on 144MHz only. > If you look at performance only (no price, no ergonomics, no use outside > digital modes on 144MHz) what would you prefer > > 1) K3/K3S with internal transverter > 2) IC-9700 > > In both cases I plan to use a 1kW amplifier. > > Vy 73 de OZ1CCM, Kjeld > > > 73, Ed - KL7UW > http://www.kl7uw.com > Dubus-NA Business mail: > [email protected] > > ______________________________________________________________ > 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 Message > delivered to [email protected] > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
