Re: [Elecraft] Digital modes on 144MHz only
Wes is quite right. There is a free program called AppCAD that allows system noise figure analysis for up to 7 cascaded stages. It is enlightening and you will understand the significance of each stage in no time just by plugging a few numbers in. Have a try its educational 73 Conrad PA5Y -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Wes Sent: 05 July 2019 15:08 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Digital modes on 144MHz only That isn't quite right either. The preamp gain must be much higher than the following losses to minimize second stage degradation. (Line loss degrades the NF of the second stage) Wes N7WS On 7/5/2019 5:35 AM, Martin wrote: > > That's not quite right. The overall system noise is determined by the > preamp noise figure when mounted as close to the antenna as possible. > Cable losses > (=noise) after the preamp can be neglected, as long as the gain of the > preamp is higher than the losses in subsequent components. So the > cable AFTER the preamp can be pretty lossy. OTOH, too much gain from > the preamp easily overdrives your transceiver's RX. A good balance > between gain vs. cable losses is mandatory. The noise figure of the pramp is > crucial. > If you are satisfied with your transverter's noise figure , mount it > close to the antenna via a short run low loss cable, if you can. This > saves the expenses for a preamp. > > This applies to the RX path. I'm not talking cable quality or output > power for TX. > > > > Message: 15 > > Date: Thu, 4 Jul 2019 17:11:58 -0500 > > From: Bob McGraw K4TAX > > To: elecraft@mailman.qth.net > > Subject: Re: [Elecraft] Digital modes on 144MHz only > > > > . Start with a mast mounted low noise preamp, then low loss > > feedline such as 7/8" hard-line, and such. Remember, loss in the > > feedline adds to receiver noise. > > .. > > > > __ 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 g0...@g0ruz.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] Digital modes on 144MHz only
Our first commercial 11 metre dish earth station built in 1984 had a 4GHz 60dB gain, 33 Kelvin, electrically cooled two stage parametric LNA at the feed horn. the cable to the receive system was LDF4-50 with 20dB loss to a six port passive splitter. The LNAs despite being pressurised constantly with dry air with a small bleed hole had to be purged of frost every six months by turning the cooling into heating and increasing the outflow of air. After 12 hours of cool down they had to be retuned, pump frequency and power to achieve 60dB flat gain over 500MHz bandwidth. Times have changed. Regards, Mike VP8NO On 05/07/2019 10:08, Wes wrote: That isn't quite right either. The preamp gain must be much higher than the following losses to minimize second stage degradation. (Line loss degrades the NF of the second stage) Wes N7WS On 7/5/2019 5:35 AM, Martin wrote: That's not quite right. The overall system noise is determined by the preamp noise figure when mounted as close to the antenna as possible. Cable losses (=noise) after the preamp can be neglected, as long as the gain of the preamp is higher than the losses in subsequent components. So the cable AFTER the preamp can be pretty lossy. OTOH, too much gain from the preamp easily overdrives your transceiver's RX. A good balance between gain vs. cable losses is mandatory. The noise figure of the pramp is crucial. If you are satisfied with your transverter's noise figure , mount it close to the antenna via a short run low loss cable, if you can. This saves the expenses for a preamp. This applies to the RX path. I'm not talking cable quality or output power for TX. __ 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] Digital modes on 144MHz only
The OP was talking about 144 MHz. For weak signal work I can't imagine not using a mast-mounted preamp. Even with sub 1 dB NF devices (that we paid dearly for when I was on EME) located in the shack, line loss is a killer. Wes N7WS On 7/4/2019 10:01 PM, Jim Brown wrote: In today's world, a mast-mounted preamp is a waste of effort for the vast majority of hams because circuit noise in the receiver is rarely the limitation on what we hear. __ 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] Digital modes on 144MHz only
That isn't quite right either. The preamp gain must be much higher than the following losses to minimize second stage degradation. (Line loss degrades the NF of the second stage) Wes N7WS On 7/5/2019 5:35 AM, Martin wrote: That's not quite right. The overall system noise is determined by the preamp noise figure when mounted as close to the antenna as possible. Cable losses (=noise) after the preamp can be neglected, as long as the gain of the preamp is higher than the losses in subsequent components. So the cable AFTER the preamp can be pretty lossy. OTOH, too much gain from the preamp easily overdrives your transceiver's RX. A good balance between gain vs. cable losses is mandatory. The noise figure of the pramp is crucial. If you are satisfied with your transverter's noise figure , mount it close to the antenna via a short run low loss cable, if you can. This saves the expenses for a preamp. This applies to the RX path. I'm not talking cable quality or output power for TX. > Message: 15 > Date: Thu, 4 Jul 2019 17:11:58 -0500 > From: Bob McGraw K4TAX > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] Digital modes on 144MHz only > > . Start with a mast mounted low noise preamp, then low loss > feedline such as 7/8" hard-line, and such. Remember, loss in the > feedline adds to receiver noise. > .. > __ 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] Digital modes on 144MHz only
That's not quite right. The overall system noise is determined by the preamp noise figure when mounted as close to the antenna as possible. Cable losses (=noise) after the preamp can be neglected, as long as the gain of the preamp is higher than the losses in subsequent components. So the cable AFTER the preamp can be pretty lossy. OTOH, too much gain from the preamp easily overdrives your transceiver's RX. A good balance between gain vs. cable losses is mandatory. The noise figure of the pramp is crucial. If you are satisfied with your transverter's noise figure , mount it close to the antenna via a short run low loss cable, if you can. This saves the expenses for a preamp. This applies to the RX path. I'm not talking cable quality or output power for TX. > Message: 15 > Date: Thu, 4 Jul 2019 17:11:58 -0500 > From: Bob McGraw K4TAX > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] Digital modes on 144MHz only > > . Start with a mast mounted low noise preamp, then low loss > feedline such as 7/8" hard-line, and such. Remember, loss in the > feedline adds to receiver noise. > .. > -- Ohne CW ist es nur CB.. 73, Martin DM4iM __ 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] Digital modes on 144MHz only
Hi All. Internal transverter possible to use but with external BPF de 4z5cp -- Original Message -- From: "Michael Walker" To: "Elecraft Reflector" Sent: 05.07.2019 14:43:36 Subject: Re: [Elecraft] Digital modes on 144MHz only Hi These are the Transverters I use. Very good quality and they can be 10mhz gps locked. http://www.q5signal.com/ Mike va3mw Sent from my iPad On Jul 5, 2019, at 7:16 AM, Conrad PA5Y wrote: Neither! I would buy a good transverter to use with a K3S. Two obvious choices. https://shop.kuhne-electronic.com/kuhne/en/shop/converter-transverte/transverter/TR+144++PRO++Transverter/?card=1621 TR 144 - PRO, Transverter - Kuhne Electronic Amateur Radio Shop<https://shop.kuhne-electronic.com/kuhne/en/shop/converter-transverte/transverter/TR+144++PRO++Transverter/?card=1621> shop.kuhne-electronic.com Endkundenshop main_nav Produkte Meta-Description http://www.ha1ya.hu/htmkepek/me2t_pro3_spec.htm ME2T-PRO3 & ME2HT-PRO3 transverter specifications<http://www.ha1ya.hu/htmkepek/me2t_pro3_spec.htm> www.ha1ya.hu • Frequency Coverage: 144.0-146.0MHz band. • IF in/out Frequency : 28.0-30.0MHz, or 14.0-16.0MHz • LO frq stability: Low phase noise, 1ppm PDI or optional 0.5ppm AXTAL TCXO's! • I/O Impedance : 50 Ohm unbalanced • Input Voltage : 13.8VDC, +-5%, polarity mismatch, 10A -40dB EMI filter. • Power Consumption : 0.55A on RX, 5.5A on TX @30W out version, 10.5A @50W version. Both of these transverters will outperform the Elecraft transverter with respect to TX PN, IMD and RX IMD. They are both excellent, the HA1YA is considerably cheaper and that is what I chose, actually in my case the ME2T XP because I need 2 channels for Xpol EME. I have extensively tested all these combinations. The IC9700 is nice and convenient and quite reasonable but both the TX and RX performance is inferior to the K3S with either of the above transverters. 73 Conrad PA5Y From: elecraft-boun...@mailman.qth.net on behalf of Kjeld Holm Sent: 04 July 2019 20:31 To: Elecraft Reflector Subject: [Elecraft] Digital modes on 144MHz only 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 __ 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 g0...@g0ruz.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 va...@portcredit.net __ 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 4z...@bezeqint.net __ 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] Digital modes on 144MHz only
Hi These are the Transverters I use. Very good quality and they can be 10mhz gps locked. http://www.q5signal.com/ Mike va3mw Sent from my iPad > On Jul 5, 2019, at 7:16 AM, Conrad PA5Y wrote: > > Neither! > > > I would buy a good transverter to use with a K3S. Two obvious choices. > > > https://shop.kuhne-electronic.com/kuhne/en/shop/converter-transverte/transverter/TR+144++PRO++Transverter/?card=1621 > > TR 144 - PRO, Transverter - Kuhne Electronic Amateur Radio > Shop<https://shop.kuhne-electronic.com/kuhne/en/shop/converter-transverte/transverter/TR+144++PRO++Transverter/?card=1621> > shop.kuhne-electronic.com > Endkundenshop main_nav Produkte Meta-Description > > > > http://www.ha1ya.hu/htmkepek/me2t_pro3_spec.htm > > ME2T-PRO3 & ME2HT-PRO3 transverter > specifications<http://www.ha1ya.hu/htmkepek/me2t_pro3_spec.htm> > www.ha1ya.hu > • Frequency Coverage: 144.0-146.0MHz band. • IF in/out Frequency : > 28.0-30.0MHz, or 14.0-16.0MHz • LO frq stability: Low phase noise, 1ppm PDI > or optional 0.5ppm AXTAL TCXO's! • I/O Impedance : 50 Ohm unbalanced • Input > Voltage : 13.8VDC, +-5%, polarity mismatch, 10A -40dB EMI filter. • Power > Consumption : 0.55A on RX, 5.5A on TX @30W out version, 10.5A @50W version. > Both of these transverters will outperform the Elecraft transverter with > respect to TX PN, IMD and RX IMD. They are both excellent, the HA1YA is > considerably cheaper and that is what I chose, actually in my case the ME2T > XP because I need 2 channels for Xpol EME. I have extensively tested all > these combinations. > > > The IC9700 is nice and convenient and quite reasonable but both the TX and RX > performance is inferior to the K3S with either of the above transverters. > > > 73 > > > Conrad PA5Y > > > > > ________ > From: elecraft-boun...@mailman.qth.net on > behalf of Kjeld Holm > Sent: 04 July 2019 20:31 > To: Elecraft Reflector > Subject: [Elecraft] Digital modes on 144MHz only > > 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 > __ > 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 g0...@g0ruz.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 va...@portcredit.net __ 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] Digital modes on 144MHz only
Neither! I would buy a good transverter to use with a K3S. Two obvious choices. https://shop.kuhne-electronic.com/kuhne/en/shop/converter-transverte/transverter/TR+144++PRO++Transverter/?card=1621 TR 144 - PRO, Transverter - Kuhne Electronic Amateur Radio Shop<https://shop.kuhne-electronic.com/kuhne/en/shop/converter-transverte/transverter/TR+144++PRO++Transverter/?card=1621> shop.kuhne-electronic.com Endkundenshop main_nav Produkte Meta-Description http://www.ha1ya.hu/htmkepek/me2t_pro3_spec.htm ME2T-PRO3 & ME2HT-PRO3 transverter specifications<http://www.ha1ya.hu/htmkepek/me2t_pro3_spec.htm> www.ha1ya.hu • Frequency Coverage: 144.0-146.0MHz band. • IF in/out Frequency : 28.0-30.0MHz, or 14.0-16.0MHz • LO frq stability: Low phase noise, 1ppm PDI or optional 0.5ppm AXTAL TCXO's! • I/O Impedance : 50 Ohm unbalanced • Input Voltage : 13.8VDC, +-5%, polarity mismatch, 10A -40dB EMI filter. • Power Consumption : 0.55A on RX, 5.5A on TX @30W out version, 10.5A @50W version. Both of these transverters will outperform the Elecraft transverter with respect to TX PN, IMD and RX IMD. They are both excellent, the HA1YA is considerably cheaper and that is what I chose, actually in my case the ME2T XP because I need 2 channels for Xpol EME. I have extensively tested all these combinations. The IC9700 is nice and convenient and quite reasonable but both the TX and RX performance is inferior to the K3S with either of the above transverters. 73 Conrad PA5Y From: elecraft-boun...@mailman.qth.net on behalf of Kjeld Holm Sent: 04 July 2019 20:31 To: Elecraft Reflector Subject: [Elecraft] Digital modes on 144MHz only 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 __ 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 g0...@g0ruz.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] Digital modes on 144MHz only
In today's world, a mast-mounted preamp is a waste of effort for the vast majority of hams because circuit noise in the receiver is rarely the limitation on what we hear. Rather it's all the trash from the electronics in our homes and homes of our neighbors, in addition to power line noise. I've recently been working 6M grid expeditions to VERY quiet places, and the ops say that they have to run high power to get over the local noise of the stations who want to work them. That's why I bought the KPA1500 that will show up next week. :) Most of the time, my QTH is pretty quiet, and although I'm running 500W to 4-el at 120 ft fed with 7/8 hard line, I nearly always give a signal report that's 10-15dB better than I receive. Today I worked a station double-hop E-skip who I gave +1 and he gave me -24. When it's quiet, it's because I worked to make it that way. When it's not, it's when some new source fires up. One of the things I'd be concerned about with the internally mounted transverter is frequency stability due to the additional internally generated heat. I don't know how they're building them now, but the XV144 and XV220 I bought used about 15 years ago have serious bonding issues, and they can be a bit unstable. One of the most serious design faults is the that BNC I/O connectors are insulated from the shielding enclosure! Hello! Clearly the designer did the wrong thing to fix whatever instability was caused by other errors. 73, Jim K9YC 73, Jim K9YC On 7/4/2019 3:11 PM, Bob McGraw K4TAX wrote: Make sure you balance the station receive performance with that of the 1 KW amp. Power is easy to generate. Low noise receive performance is a challenge. Start with a mast mounted low noise preamp, then low loss feedline such as 7/8" hard-line, and such. Remember, loss in the feedline adds to receiver noise. I encounter many stations that have great signals but seemingly can't hear other stations calling them. I call them alligators...all mouth, no ears. __ 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] Digital modes on 144MHz only
I was not happy with the 9700 - it had calibration issues. I returned it. I have the internal K144XV with the reflock board and 1PPM TXCO installed in the K3S - the external reference clock for the K3S would be better. So far it has worked on the few digital modes I have tried. I use an external soundcard (PK-232sc+) because I like its specs and it also is a real TNC for packet and pactor. So far so good. I'm only running a 200 watt amplifier. Hank K4HYJ -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Kjeld Holm Sent: Thursday, July 4, 2019 2:31 PM To: Elecraft Reflector Subject: [Elecraft] Digital modes on 144MHz only 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 __ 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 h...@optilink.us __ 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] Digital modes on 144MHz only
Make sure you balance the station receive performance with that of the 1 KW amp. Power is easy to generate. Low noise receive performance is a challenge. Start with a mast mounted low noise preamp, then low loss feedline such as 7/8" hard-line, and such. Remember, loss in the feedline adds to receiver noise. I encounter many stations that have great signals but seemingly can't hear other stations calling them. I call them alligators...all mouth, no ears. 73 Bob, K4TAX On 7/4/2019 4:14 PM, Wes wrote: I don't know the '9700, but if you already have a K3(S), I would say an external transverter like an XV144. Wes N7WS On 7/4/2019 11:31 AM, Kjeld Holm wrote: 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 __ 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 wes_n...@triconet.org __ 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 rmcg...@blomand.net __ 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] Digital modes on 144MHz only
I don't know the '9700, but if you already have a K3(S), I would say an external transverter like an XV144. Wes N7WS On 7/4/2019 11:31 AM, Kjeld Holm wrote: 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 __ 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 wes_n...@triconet.org __ 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] Digital modes on 144MHz only
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 __ 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
