[Elecraft] KX2 on JT65 & JT9 ??
Has anyone had the opportunity to see if the KX2 out of the box will be stable enough to run JT65 & JT9 Would appreciate feedback as I’m apartment dweller and only run these digital modes with compromised antenna Thanks Dan VA3MA __ 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] KX2 on JT65 & JT9 ??
One of the eham reviewers mentioned using the KX2 on JT65: http://www.eham.net/reviews/detail/12852 The N9JR review. Phil W7OX On 5/29/16 12:40 PM, Dan - VA3MA wrote: Has anyone had the opportunity to see if the KX2 out of the box will be stable enough to run JT65 & JT9 Would appreciate feedback as I’m apartment dweller and only run these digital modes with compromised antenna Thanks Dan VA3MA __ 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] KX2 on JT65 & JT9 ??
I don't believe that JT65 frequency stability at HF frequencies will be an issue. The documents say that the JT65 bandwidth is pretty generous. I've run JT65 on my Softrock without issue. Mike va3mw On Sun, May 29, 2016 at 3:46 PM, Phil Wheeler wrote: > One of the eham reviewers mentioned using the KX2 on JT65: > http://www.eham.net/reviews/detail/12852 > > The N9JR review. > > Phil W7OX > > > > On 5/29/16 12:40 PM, Dan - VA3MA wrote: > >> Has anyone had the opportunity to see if the KX2 out of the box will be >> stable enough to run JT65 & JT9 >> Would appreciate feedback as I’m apartment dweller and only run these >> digital modes with compromised antenna >> Thanks >> Dan VA3MA >> > > __ > 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] KX2 on JT65 & JT9 ??
Hi thanks I’ve read all these c comments by others - but I have yet to get a direct confirmation from someone who has operated the KX2 enthuse digital modes! Ha! Dan > On May 29, 2016, at 3:46 PM, Phil Wheeler wrote: > > One of the eham reviewers mentioned using the KX2 on JT65: > http://www.eham.net/reviews/detail/12852 > > The N9JR review. > > Phil W7OX > > > On 5/29/16 12:40 PM, Dan - VA3MA wrote: >> Has anyone had the opportunity to see if the KX2 out of the box will be >> stable enough to run JT65 & JT9 >> Would appreciate feedback as I’m apartment dweller and only run these >> digital modes with compromised antenna >> Thanks >> Dan VA3MA > __ 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] KX2 on JT65 & JT9 ??
Dan Issues with not being able to communicate with JT65 have nothing to do with frequency stability. It has to do with just not being heard. :) Like all other digital modes, you require Transmit and Receive Audio and a PTT line. I would be very very very surprised that a KX2 can't handle JT65. JT65 is does not require a super stable transmitter. In fact, when they use it off the moon, there is significant doppler going on. Mike va3mw On Sun, May 29, 2016 at 4:22 PM, Dan - VA3MA wrote: > Hi thanks > I’ve read all these c comments by others - but I have yet to get a direct > confirmation from someone who has operated the KX2 enthuse digital modes! > Ha! > Dan > > > On May 29, 2016, at 3:46 PM, Phil Wheeler wrote: > > > > One of the eham reviewers mentioned using the KX2 on JT65: > http://www.eham.net/reviews/detail/12852 > > > > The N9JR review. > > > > Phil W7OX > > > > > > On 5/29/16 12:40 PM, Dan - VA3MA wrote: > >> Has anyone had the opportunity to see if the KX2 out of the box will be > stable enough to run JT65 & JT9 > >> Would appreciate feedback as I’m apartment dweller and only run these > digital modes with compromised antenna > >> Thanks > >> Dan VA3MA > > > > __ > 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] KX2 on JT65 & JT9 ??
I have run JT65 on my KX3 at 5 watts without issue other than not having enough RF signal. Mike va3mw On Sun, May 29, 2016 at 4:37 PM, Dan Howard wrote: > Mike > The KX3 wil not work JT modes due to freq drift due to heat - one must do > the temperature compensation procedure in order to get the KX3 > freq stable… > I’m hoping that the KX2 does not need ‘fiddling’ in a cooler ! HIHI > 73 > Dan > > > On May 29, 2016, at 4:33 PM, Michael Walker > wrote: > > > > Dan > > > > Issues with not being able to communicate with JT65 have nothing to do > with > > frequency stability. It has to do with just not being heard. :) > > > > Like all other digital modes, you require Transmit and Receive Audio and > a > > PTT line. > > > > I would be very very very surprised that a KX2 can't handle JT65. JT65 > is > > does not require a super stable transmitter. In fact, when they use it > off > > the moon, there is significant doppler going on. > > > > Mike va3mw > > > > > > On Sun, May 29, 2016 at 4:22 PM, Dan - VA3MA wrote: > > > >> Hi thanks > >> I’ve read all these c comments by others - but I have yet to get a > direct > >> confirmation from someone who has operated the KX2 enthuse digital > modes! > >> Ha! > >> Dan > >> > >>> On May 29, 2016, at 3:46 PM, Phil Wheeler wrote: > >>> > >>> One of the eham reviewers mentioned using the KX2 on JT65: > >> http://www.eham.net/reviews/detail/12852 > >>> > >>> The N9JR review. > >>> > >>> Phil W7OX > >>> > >>> > >>> On 5/29/16 12:40 PM, Dan - VA3MA wrote: > Has anyone had the opportunity to see if the KX2 out of the box will > be > >> stable enough to run JT65 & JT9 > Would appreciate feedback as I’m apartment dweller and only run these > >> digital modes with compromised antenna > Thanks > Dan VA3MA > >>> > >> > >> __ > >> 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 va...@me.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] KX2 on JT65 & JT9 ??
Yes, but... the earth & moon don't do anything abrupt. 73, Josh W6XU On 5/29/2016 1:33 PM, Michael Walker wrote: ...does not require a super stable transmitter. In fact, when they use it off the moon, there is significant doppler going on. __ 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] KX2 on JT65 & JT9 ??
__ 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] KX2 on JT65 & JT9 ??
The moon bounces around and causes some pretty good doppler. Good thing that JT65-HF also has AFC built in. http://www.packetradio.com/pdfzips/jt65-hf-setup.pdf *AFC enables automatic frequency control and will attempt to follow a signal that exhibits drift. Its original intent is to compensate for Doppler shift when using JT65 for EME contacts, but it has application on HF as well. Not for Doppler shift compensation, but for stations who show VFO drift.* The biggest problem is clock drift, not RF drift. Regardless, the beta testers claimed the did JT65 without issue. Mike va3mw On Sun, May 29, 2016 at 8:51 PM, Luke via Elecraft wrote: > > __ > 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] KX2 on JT65 & JT9 ??
> > > Issues with not being able to communicate with JT65 have nothing to do with > frequency stability === Actually, frequency stability is the key issue with JT65. The transmit frequency can not drift more than about 8 hz during transmission, or the receiving station will probably not be able to copy. It was this exact issue that led to the development of the temp compensation scheme for the KX3. The point of the original question was to determine whether or not the KX2 needs such a compensation routine, or is stable enough as shipped. If you run a KX3 without the compensation you may think they can't hear you when actually the problem is in the small drift in your transmit frequency. I first discovered this when running WSPR on the KX3 and listening to myself on a nearby K3. The graphic display of carrier frequency offered by WSPR made it clear what was happening. My stock KX3 drifted by about 14 Hz in the first half-minute or so of transmission. Contacts on JT65 were not impossible, but they were rare, as were WSPR reports. You can search the archives for many, many posts on this subject, and look on the Elecraft website for the recommended fix, which involves putting your KX3 in the fridge, then running a compensation routine while you warm it up with a heat gun. Meanwhile, I would be interested to know the answer to the original question, as I am sure many others would be as well. Tony KT0NY __ 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] KX2 on JT65 & JT9 ??
Luke Thanks - just what I needed to know! Have you tried JT9 ? Perhaps some sort of heatsink/handles added to the case might help?? 73 Dan VA3MA On 2016-05-29, at 22:37, Luke wrote: Hmm, not sure why it cut out my message. Here's what I wrote: I've used my KX2 on WSPR and JT65 and it appears to be plenty stable. I used to have a KX3 and sold it because it wouldn't decode WSPR between transmit cycles due to excessive drift. I've kept the KX2 to <5 watts because the right sideplate gets very hot with the high duty cycle. I've actually just been sitting here running JT65 @ 10 watts when I got your email, and it is doing pretty well. I had 3 back to back QSO's and on the last transmission the PA Temp got up to 47C (~117F) which doesn't seem too bad. As it cools off there is no drifting or slanting of signals on the waterfall either. I think the 1 minute on/off duty cycle of JT65 is very doable with the KX2, and WSPR might be pushing it. The other night the sideplate got quite hot running WSPR at 5 watts. Luke AD0KI From: Dan - VA3MA To: Luke Sent: Sunday, May 29, 2016 8:12 PM Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? Luke No content > On May 29, 2016, at 8:51 PM, Luke via Elecraft > wrote: > > > __ > 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...@me.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] KX2 on JT65 & JT9 ??
I'm glad it's working. But just in case, we will also be providing an optional extended temperature compensation procedure for the KX2. 73, Wayne > On 2016-05-29, at 22:37, Luke wrote: > > Hmm, not sure why it cut out my message. Here's what I wrote: > > I've used my KX2 on WSPR and JT65 and it appears to be plenty stable. I used > to have a KX3 and sold it because it wouldn't decode WSPR between transmit > cycles due to excessive drift. I've kept the KX2 to <5 watts because the > right sideplate gets very hot with the high duty cycle. > > I've actually just been sitting here running JT65 @ 10 watts when I got your > email, and it is doing pretty well. I had 3 back to back QSO's and on the > last transmission the PA Temp got up to 47C (~117F) which doesn't seem too > bad. As it cools off there is no drifting or slanting of signals on the > waterfall either. I think the 1 minute on/off duty cycle of JT65 is very > doable with the KX2, and WSPR might be pushing it. The other night the > sideplate got quite hot running WSPR at 5 watts. > > Luke > AD0KI __ 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] KX2 on JT65 & JT9 ??
Wayne I would imagine a bit of cooling on the KX2 end plate will help also? Heat sink... Happy to see it is within limits for WSJT modes without freezing it!! Hi hi Dan VA3MA > On May 29, 2016, at 11:35 PM, Wayne Burdick wrote: > > I'm glad it's working. But just in case, we will also be providing an > optional extended temperature compensation procedure for the KX2. > > 73, > Wayne > > >> On 2016-05-29, at 22:37, Luke wrote: >> >> Hmm, not sure why it cut out my message. Here's what I wrote: >> >> I've used my KX2 on WSPR and JT65 and it appears to be plenty stable. I used >> to have a KX3 and sold it because it wouldn't decode WSPR between transmit >> cycles due to excessive drift. I've kept the KX2 to <5 watts because the >> right sideplate gets very hot with the high duty cycle. >> >> I've actually just been sitting here running JT65 @ 10 watts when I got your >> email, and it is doing pretty well. I had 3 back to back QSO's and on the >> last transmission the PA Temp got up to 47C (~117F) which doesn't seem too >> bad. As it cools off there is no drifting or slanting of signals on the >> waterfall either. I think the 1 minute on/off duty cycle of JT65 is very >> doable with the KX2, and WSPR might be pushing it. The other night the >> sideplate got quite hot running WSPR at 5 watts. >> >> Luke >> AD0KI > > > __ 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] KX2 on JT65 & JT9 ??
The local oscillator design of the KX2 is very different from the KX3, as are the thermal isolation of the oscillator from the PA and the high current paths in the radio. There is as yet no field temperature compensation procedure available for the KX2 nor is it clear that one is needed. At least one KX2 field tester operated JT65 successfully with the KX2. There are enough KX2 radios in the field now that it should be a simple matter for an owner to measure the stability of the radio in this mode and report the results to the group to satisfy the curious... 73, Lyle KK7P (on "vacation") Sent from my iPhone > On May 29, 2016, at 8:14 PM, Dan - VA3MA wrote: > > Luke > Thanks - just what I needed to know! > Have you tried JT9 ? > Perhaps some sort of heatsink/handles added to the case might help?? > 73 > Dan VA3MA > > > On 2016-05-29, at 22:37, Luke wrote: > > Hmm, not sure why it cut out my message. Here's what I wrote: > > I've used my KX2 on WSPR and JT65 and it appears to be plenty stable. I used > to have a KX3 and sold it because it wouldn't decode WSPR between transmit > cycles due to excessive drift. I've kept the KX2 to <5 watts because the > right sideplate gets very hot with the high duty cycle. > > I've actually just been sitting here running JT65 @ 10 watts when I got your > email, and it is doing pretty well. I had 3 back to back QSO's and on the > last transmission the PA Temp got up to 47C (~117F) which doesn't seem too > bad. As it cools off there is no drifting or slanting of signals on the > waterfall either. I think the 1 minute on/off duty cycle of JT65 is very > doable with the KX2, and WSPR might be pushing it. The other night the > sideplate got quite hot running WSPR at 5 watts. > > Luke > AD0KI > > > From: Dan - VA3MA > To: Luke > Sent: Sunday, May 29, 2016 8:12 PM > Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? > > Luke > No content > >> On May 29, 2016, at 8:51 PM, Luke via Elecraft >> wrote: >> >> >> __ >> 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...@me.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 kk7p4...@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] KX2 on JT65 & JT9 ??
Luke I too sold my KX3 for the same reason- no WSJT. Happy to see KX2 capable with care Dan > On May 29, 2016, at 11:20 PM, Luke wrote: > > I just tried JT9 actually and had no problems. If you head over to > PSKReporter and type in my call sign you can see how it's been working for me > this evening. It seems to heat up a little faster using JT9, but it's still > managable. I don't mind taking a few minutes between QSO's to let things cool > off. From my understanding Gemsproducts.com already has KX2 side handles in > the works and I will definitely pick some up and see how they work. I can > only imagine that any more metal on the side to pick up some extra heat will > only be a good thing. > > Luke > AD0KI > > > > > From: Dan - VA3MA > To: Luke > Cc: Elecraft > Sent: Sunday, May 29, 2016 9:14 PM > Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? > > Luke > Thanks - just what I needed to know! > Have you tried JT9 ? > Perhaps some sort of heatsink/handles added to the case might help?? > 73 > Dan VA3MA > > > On 2016-05-29, at 22:37, Luke wrote: > > Hmm, not sure why it cut out my message. Here's what I wrote: > > I've used my KX2 on WSPR and JT65 and it appears to be plenty stable. I used > to have a KX3 and sold it because it wouldn't decode WSPR between transmit > cycles due to excessive drift. I've kept the KX2 to <5 watts because the > right sideplate gets very hot with the high duty cycle. > > I've actually just been sitting here running JT65 @ 10 watts when I got your > email, and it is doing pretty well. I had 3 back to back QSO's and on the > last transmission the PA Temp got up to 47C (~117F) which doesn't seem too > bad. As it cools off there is no drifting or slanting of signals on the > waterfall either. I think the 1 minute on/off duty cycle of JT65 is very > doable with the KX2, and WSPR might be pushing it. The other night the > sideplate got quite hot running WSPR at 5 watts. > > Luke > AD0KI > > > From: Dan - VA3MA > To: Luke > Sent: Sunday, May 29, 2016 8:12 PM > Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? > > Luke > No content > > > On May 29, 2016, at 8:51 PM, Luke via Elecraft > > wrote: > > > > > > __ > > 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...@me.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] KX2 on JT65 & JT9 ??
Lyle Such data would be very beneficial. And result in more KX2 sales - ha if that could be handled!! Note that Wayne just posted that a temp comp procedure will be posted. Dan VA3MA > On May 29, 2016, at 11:45 PM, Lyle wrote: > > The local oscillator design of the KX2 is very different from the KX3, as are > the thermal isolation of the oscillator from the PA and the high current > paths in the radio. There is as yet no field temperature compensation > procedure available for the KX2 nor is it clear that one is needed. At least > one KX2 field tester operated JT65 successfully with the KX2. > > There are enough KX2 radios in the field now that it should be a simple > matter for an owner to measure the stability of the radio in this mode and > report the results to the group to satisfy the curious... > > 73, > > Lyle KK7P (on "vacation") > > Sent from my iPhone > >> On May 29, 2016, at 8:14 PM, Dan - VA3MA wrote: >> >> Luke >> Thanks - just what I needed to know! >> Have you tried JT9 ? >> Perhaps some sort of heatsink/handles added to the case might help?? >> 73 >> Dan VA3MA >> >> >> On 2016-05-29, at 22:37, Luke wrote: >> >> Hmm, not sure why it cut out my message. Here's what I wrote: >> >> I've used my KX2 on WSPR and JT65 and it appears to be plenty stable. I used >> to have a KX3 and sold it because it wouldn't decode WSPR between transmit >> cycles due to excessive drift. I've kept the KX2 to <5 watts because the >> right sideplate gets very hot with the high duty cycle. >> >> I've actually just been sitting here running JT65 @ 10 watts when I got your >> email, and it is doing pretty well. I had 3 back to back QSO's and on the >> last transmission the PA Temp got up to 47C (~117F) which doesn't seem too >> bad. As it cools off there is no drifting or slanting of signals on the >> waterfall either. I think the 1 minute on/off duty cycle of JT65 is very >> doable with the KX2, and WSPR might be pushing it. The other night the >> sideplate got quite hot running WSPR at 5 watts. >> >> Luke >> AD0KI >> >> >> From: Dan - VA3MA >> To: Luke >> Sent: Sunday, May 29, 2016 8:12 PM >> Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? >> >> Luke >> No content >> >>> On May 29, 2016, at 8:51 PM, Luke via Elecraft >>> wrote: >>> >>> >>> __ >>> 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...@me.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 kk7p4...@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] KX2 on JT65 & JT9 ??
Lyle is on vacation and didn't get that memo. He's above and beyond the call of duty posting at all :) Also note that the latest production KX3 RF board (rev. E) has the synth circuitry a lot farther from the PA and driver. This significantly reduced the thermal gradient. (The other major Rev. E RF board improvement was tighter 17/15/12/10 meter band-pass filters. These were inherited by the KX2 as well.) Wayne N6KR On May 29, 2016, at 8:50 PM, D Howard wrote: > Lyle > Such data would be very beneficial. > And result in more KX2 sales - ha if that could be handled!! > Note that Wayne just posted that a temp comp procedure will be posted. > Dan VA3MA > >> On May 29, 2016, at 11:45 PM, Lyle wrote: >> >> The local oscillator design of the KX2 is very different from the KX3, as >> are the thermal isolation of the oscillator from the PA and the high current >> paths in the radio. There is as yet no field temperature compensation >> procedure available for the KX2 nor is it clear that one is needed. At >> least one KX2 field tester operated JT65 successfully with the KX2. >> >> There are enough KX2 radios in the field now that it should be a simple >> matter for an owner to measure the stability of the radio in this mode and >> report the results to the group to satisfy the curious... >> >> 73, >> >> Lyle KK7P (on "vacation") >> >> Sent from my iPhone >> >>> On May 29, 2016, at 8:14 PM, Dan - VA3MA wrote: >>> >>> Luke >>> Thanks - just what I needed to know! >>> Have you tried JT9 ? >>> Perhaps some sort of heatsink/handles added to the case might help?? >>> 73 >>> Dan VA3MA >>> >>> >>> On 2016-05-29, at 22:37, Luke wrote: >>> >>> Hmm, not sure why it cut out my message. Here's what I wrote: >>> >>> I've used my KX2 on WSPR and JT65 and it appears to be plenty stable. I >>> used to have a KX3 and sold it because it wouldn't decode WSPR between >>> transmit cycles due to excessive drift. I've kept the KX2 to <5 watts >>> because the right sideplate gets very hot with the high duty cycle. >>> >>> I've actually just been sitting here running JT65 @ 10 watts when I got >>> your email, and it is doing pretty well. I had 3 back to back QSO's and on >>> the last transmission the PA Temp got up to 47C (~117F) which doesn't seem >>> too bad. As it cools off there is no drifting or slanting of signals on the >>> waterfall either. I think the 1 minute on/off duty cycle of JT65 is very >>> doable with the KX2, and WSPR might be pushing it. The other night the >>> sideplate got quite hot running WSPR at 5 watts. >>> >>> Luke >>> AD0KI >>> >>> >>> From: Dan - VA3MA >>> To: Luke >>> Sent: Sunday, May 29, 2016 8:12 PM >>> Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? >>> >>> Luke >>> No content >>> >>>> On May 29, 2016, at 8:51 PM, Luke via Elecraft >>>> wrote: >>>> >>>> >>>> __ >>>> 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...@me.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 kk7p4...@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 n...@elecraft.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] KX2 on JT65 & JT9 ??
Dan , I am surprised that you couldn't get WSJT to go with your KX3 and had to sell it. I am using my KX3 (note not a KX2) on WSJT on 144 MHz EME JT65b. I did however do the extended temperature VFO compensation first and that perhaps is a key requirement. The KX3 was actually more stable than my original 144 MHz transverter's TCXO, which I had to replace with a better TCXO to get the transmit drift to satisfactory levels. 73 from David GM4JJJ > On 30 May 2016, at 04:45, D Howard wrote: > > Luke > I too sold my KX3 for the same reason- no WSJT. > Happy to see KX2 capable with care > Dan > >> On May 29, 2016, at 11:20 PM, Luke wrote: >> >> I just tried JT9 actually and had no problems. If you head over to >> PSKReporter and type in my call sign you can see how it's been working for >> me this evening. It seems to heat up a little faster using JT9, but it's >> still managable. I don't mind taking a few minutes between QSO's to let >> things cool off. From my understanding Gemsproducts.com already has KX2 side >> handles in the works and I will definitely pick some up and see how they >> work. I can only imagine that any more metal on the side to pick up some >> extra heat will only be a good thing. >> >> Luke >> AD0KI >> >> >> >> >> From: Dan - VA3MA >> To: Luke >> Cc: Elecraft >> Sent: Sunday, May 29, 2016 9:14 PM >> Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? >> >> Luke >> Thanks - just what I needed to know! >> Have you tried JT9 ? >> Perhaps some sort of heatsink/handles added to the case might help?? >> 73 >> Dan VA3MA >> >> >> On 2016-05-29, at 22:37, Luke wrote: >> >> Hmm, not sure why it cut out my message. Here's what I wrote: >> >> I've used my KX2 on WSPR and JT65 and it appears to be plenty stable. I used >> to have a KX3 and sold it because it wouldn't decode WSPR between transmit >> cycles due to excessive drift. I've kept the KX2 to <5 watts because the >> right sideplate gets very hot with the high duty cycle. >> >> I've actually just been sitting here running JT65 @ 10 watts when I got your >> email, and it is doing pretty well. I had 3 back to back QSO's and on the >> last transmission the PA Temp got up to 47C (~117F) which doesn't seem too >> bad. As it cools off there is no drifting or slanting of signals on the >> waterfall either. I think the 1 minute on/off duty cycle of JT65 is very >> doable with the KX2, and WSPR might be pushing it. The other night the >> sideplate got quite hot running WSPR at 5 watts. >> >> Luke >> AD0KI >> >> >> From: Dan - VA3MA >> To: Luke >> Sent: Sunday, May 29, 2016 8:12 PM >> Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? >> >> Luke >> No content >> >>> On May 29, 2016, at 8:51 PM, Luke via Elecraft >>> wrote: >>> >>> >>> __ >>> 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...@me.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 gm4...@yahoo.co.uk __ 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] KX2 on JT65 & JT9 ??
David I thought at the price I paid for the KX3 I shouldn't have to do the compensation nor run the KX3 at such reduced power once compensated. My trusty old FT817 worked fine. I also assumed Elecraft would address the issue with an updated KX3 -ie an 'KX3s' at some point. So I sold it awaiting the 'upgrade' which turned out to be the KX2 ! Which is far more stable out of the box. I'm happy to now order a KX2! 73/72 Dan VA3MA > On May 30, 2016, at 4:01 AM, David Anderson wrote: > > Dan , > > I am surprised that you couldn't get WSJT to go with your KX3 and had to sell > it. > > I am using my KX3 (note not a KX2) on WSJT on 144 MHz EME JT65b. I did > however do the extended temperature VFO compensation first and that perhaps > is a key requirement. The KX3 was actually more stable than my original 144 > MHz transverter's TCXO, which I had to replace with a better TCXO to get the > transmit drift to satisfactory levels. > > > 73 from David GM4JJJ > >> On 30 May 2016, at 04:45, D Howard wrote: >> >> Luke >> I too sold my KX3 for the same reason- no WSJT. >> Happy to see KX2 capable with care >> Dan >> >>> On May 29, 2016, at 11:20 PM, Luke wrote: >>> >>> I just tried JT9 actually and had no problems. If you head over to >>> PSKReporter and type in my call sign you can see how it's been working for >>> me this evening. It seems to heat up a little faster using JT9, but it's >>> still managable. I don't mind taking a few minutes between QSO's to let >>> things cool off. From my understanding Gemsproducts.com already has KX2 >>> side handles in the works and I will definitely pick some up and see how >>> they work. I can only imagine that any more metal on the side to pick up >>> some extra heat will only be a good thing. >>> >>> Luke >>> AD0KI >>> >>> >>> >>> >>> From: Dan - VA3MA >>> To: Luke >>> Cc: Elecraft >>> Sent: Sunday, May 29, 2016 9:14 PM >>> Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? >>> >>> Luke >>> Thanks - just what I needed to know! >>> Have you tried JT9 ? >>> Perhaps some sort of heatsink/handles added to the case might help?? >>> 73 >>> Dan VA3MA >>> >>> >>> On 2016-05-29, at 22:37, Luke wrote: >>> >>> Hmm, not sure why it cut out my message. Here's what I wrote: >>> >>> I've used my KX2 on WSPR and JT65 and it appears to be plenty stable. I >>> used to have a KX3 and sold it because it wouldn't decode WSPR between >>> transmit cycles due to excessive drift. I've kept the KX2 to <5 watts >>> because the right sideplate gets very hot with the high duty cycle. >>> >>> I've actually just been sitting here running JT65 @ 10 watts when I got >>> your email, and it is doing pretty well. I had 3 back to back QSO's and on >>> the last transmission the PA Temp got up to 47C (~117F) which doesn't seem >>> too bad. As it cools off there is no drifting or slanting of signals on the >>> waterfall either. I think the 1 minute on/off duty cycle of JT65 is very >>> doable with the KX2, and WSPR might be pushing it. The other night the >>> sideplate got quite hot running WSPR at 5 watts. >>> >>> Luke >>> AD0KI >>> >>> >>> From: Dan - VA3MA >>> To: Luke >>> Sent: Sunday, May 29, 2016 8:12 PM >>> Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? >>> >>> Luke >>> No content >>> >>>> On May 29, 2016, at 8:51 PM, Luke via Elecraft >>>> wrote: >>>> >>>> >>>> __ >>>> 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...@me.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 gm4...@yahoo.co.uk > __ 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] KX2 on JT65 & JT9 ??
Wayne As Lyle mentions in his email for the KX2 - it would be helpful if someone (Elecraft?) would measure the stability of the new revE KX3 in WSJT modes and post the results. Hopefully resulting in increased sales! Thanks for your comments 73 Dan VA3MA > On May 30, 2016, at 12:43 AM, Wayne Burdick wrote: > > Lyle is on vacation and didn't get that memo. He's above and beyond the call > of duty posting at all :) > > Also note that the latest production KX3 RF board (rev. E) has the synth > circuitry a lot farther from the PA and driver. This significantly reduced > the thermal gradient. (The other major Rev. E RF board improvement was > tighter 17/15/12/10 meter band-pass filters. These were inherited by the KX2 > as well.) > > Wayne > N6KR > > > >> On May 29, 2016, at 8:50 PM, D Howard wrote: >> >> Lyle >> Such data would be very beneficial. >> And result in more KX2 sales - ha if that could be handled!! >> Note that Wayne just posted that a temp comp procedure will be posted. >> Dan VA3MA >> >>> On May 29, 2016, at 11:45 PM, Lyle wrote: >>> >>> The local oscillator design of the KX2 is very different from the KX3, as >>> are the thermal isolation of the oscillator from the PA and the high >>> current paths in the radio. There is as yet no field temperature >>> compensation procedure available for the KX2 nor is it clear that one is >>> needed. At least one KX2 field tester operated JT65 successfully with the >>> KX2. >>> >>> There are enough KX2 radios in the field now that it should be a simple >>> matter for an owner to measure the stability of the radio in this mode and >>> report the results to the group to satisfy the curious... >>> >>> 73, >>> >>> Lyle KK7P (on "vacation") >>> >>> Sent from my iPhone >>> >>>> On May 29, 2016, at 8:14 PM, Dan - VA3MA wrote: >>>> >>>> Luke >>>> Thanks - just what I needed to know! >>>> Have you tried JT9 ? >>>> Perhaps some sort of heatsink/handles added to the case might help?? >>>> 73 >>>> Dan VA3MA >>>> >>>> >>>> On 2016-05-29, at 22:37, Luke wrote: >>>> >>>> Hmm, not sure why it cut out my message. Here's what I wrote: >>>> >>>> I've used my KX2 on WSPR and JT65 and it appears to be plenty stable. I >>>> used to have a KX3 and sold it because it wouldn't decode WSPR between >>>> transmit cycles due to excessive drift. I've kept the KX2 to <5 watts >>>> because the right sideplate gets very hot with the high duty cycle. >>>> >>>> I've actually just been sitting here running JT65 @ 10 watts when I got >>>> your email, and it is doing pretty well. I had 3 back to back QSO's and on >>>> the last transmission the PA Temp got up to 47C (~117F) which doesn't seem >>>> too bad. As it cools off there is no drifting or slanting of signals on >>>> the waterfall either. I think the 1 minute on/off duty cycle of JT65 is >>>> very doable with the KX2, and WSPR might be pushing it. The other night >>>> the sideplate got quite hot running WSPR at 5 watts. >>>> >>>> Luke >>>> AD0KI >>>> >>>> >>>> From: Dan - VA3MA >>>> To: Luke >>>> Sent: Sunday, May 29, 2016 8:12 PM >>>> Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? >>>> >>>> Luke >>>> No content >>>> >>>>> On May 29, 2016, at 8:51 PM, Luke via Elecraft >>>>> wrote: >>>>> >>>>> >>>>> __ >>>>> 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...@me.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 kk7p4...@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 n...@elecraft.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] KX2 on JT65 & JT9 ??
Fair enough, I am very happy with my KX3, a third party heatsink made it work for me on digital modes at the power I need. I mainly use it on 144 MHz currently with an external transverter. I actually enjoyed doing the temperature compensation procedure, it was fun. The 817 is a nice all in one rugged box, however you can't compare the ergonomics or receive performance with the KX3. Compromises have been made in the KX3 to make it small as a trail radio, a much bigger heatsink would not have been appreciated by hikers. They did upgrade the heatsink (a bit) in later models however. The KX2 uses the si5351 instead of the si570 synth, so in theory could use an external high stability reference. I prefer some of the features in the KX3 that the KX2 doesn't have, and like the larger size, AM FM, 50 MHz, PX3 option, internal 4m transverter option. So for me the choice remains the KX3. Good to have a choice though. The new internal battery pack is about the only thing in the KX2 that I wish the KX3 had. 73 from David GM4JJJ > On 30 May 2016, at 12:50, D Howard wrote: > > David > I thought at the price I paid for the KX3 I shouldn't have to do the > compensation nor run the KX3 at such reduced power once compensated. My > trusty old FT817 worked fine. > I also assumed Elecraft would address the issue with an updated KX3 -ie an > 'KX3s' at some point. > So I sold it awaiting the 'upgrade' which turned out to be the KX2 ! > Which is far more stable out of the box. > I'm happy to now order a KX2! > 73/72 > Dan VA3MA > >> On May 30, 2016, at 4:01 AM, David Anderson wrote: >> >> Dan , >> >> I am surprised that you couldn't get WSJT to go with your KX3 and had to >> sell it. >> >> I am using my KX3 (note not a KX2) on WSJT on 144 MHz EME JT65b. I did >> however do the extended temperature VFO compensation first and that perhaps >> is a key requirement. The KX3 was actually more stable than my original 144 >> MHz transverter's TCXO, which I had to replace with a better TCXO to get the >> transmit drift to satisfactory levels. >> >> >> 73 from David GM4JJJ >> >>> On 30 May 2016, at 04:45, D Howard wrote: >>> >>> Luke >>> I too sold my KX3 for the same reason- no WSJT. >>> Happy to see KX2 capable with care >>> Dan >>> >>>> On May 29, 2016, at 11:20 PM, Luke wrote: >>>> >>>> I just tried JT9 actually and had no problems. If you head over to >>>> PSKReporter and type in my call sign you can see how it's been working for >>>> me this evening. It seems to heat up a little faster using JT9, but it's >>>> still managable. I don't mind taking a few minutes between QSO's to let >>>> things cool off. From my understanding Gemsproducts.com already has KX2 >>>> side handles in the works and I will definitely pick some up and see how >>>> they work. I can only imagine that any more metal on the side to pick up >>>> some extra heat will only be a good thing. >>>> >>>> Luke >>>> AD0KI >>>> >>>> >>>> >>>> >>>> From: Dan - VA3MA >>>> To: Luke >>>> Cc: Elecraft >>>> Sent: Sunday, May 29, 2016 9:14 PM >>>> Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? >>>> >>>> Luke >>>> Thanks - just what I needed to know! >>>> Have you tried JT9 ? >>>> Perhaps some sort of heatsink/handles added to the case might help?? >>>> 73 >>>> Dan VA3MA >>>> >>>> >>>> On 2016-05-29, at 22:37, Luke wrote: >>>> >>>> Hmm, not sure why it cut out my message. Here's what I wrote: >>>> >>>> I've used my KX2 on WSPR and JT65 and it appears to be plenty stable. I >>>> used to have a KX3 and sold it because it wouldn't decode WSPR between >>>> transmit cycles due to excessive drift. I've kept the KX2 to <5 watts >>>> because the right sideplate gets very hot with the high duty cycle. >>>> >>>> I've actually just been sitting here running JT65 @ 10 watts when I got >>>> your email, and it is doing pretty well. I had 3 back to back QSO's and on >>>> the last transmission the PA Temp got up to 47C (~117F) which doesn't seem >>>> too bad. As it cools off there is no drifting or slanting of signals on >>>> the waterfall either. I think the 1 minute on/off duty cycle o
Re: [Elecraft] KX2 on JT65 & JT9 ??
David Can't agree more with what you say about the KX3 ! The KX3 is a superb piece of engineering In my circumstances as apartment dweller with very limited antenna options - WSJT modes allow me to still operate and make QSO's - thanks Joe Taylor! In other circumstances there wouldn't be an issue I envy your EME escapades! Enjoy! Dan VA3MA > On May 30, 2016, at 8:10 AM, David Anderson wrote: > > Fair enough, I am very happy with my KX3, a third party heatsink made it work > for me on digital modes at the power I need. I mainly use it on 144 MHz > currently with an external transverter. I actually enjoyed doing the > temperature compensation procedure, it was fun. > > The 817 is a nice all in one rugged box, however you can't compare the > ergonomics or receive performance with the KX3. > > Compromises have been made in the KX3 to make it small as a trail radio, a > much bigger heatsink would not have been appreciated by hikers. They did > upgrade the heatsink (a bit) in later models however. The KX2 uses the si5351 > instead of the si570 synth, so in theory could use an external high stability > reference. > > I prefer some of the features in the KX3 that the KX2 doesn't have, and like > the larger size, AM FM, 50 MHz, PX3 option, internal 4m transverter option. > So for me the choice remains the KX3. Good to have a choice though. The new > internal battery pack is about the only thing in the KX2 that I wish the KX3 > had. > > 73 from David GM4JJJ > >> On 30 May 2016, at 12:50, D Howard wrote: >> >> David >> I thought at the price I paid for the KX3 I shouldn't have to do the >> compensation nor run the KX3 at such reduced power once compensated. My >> trusty old FT817 worked fine. >> I also assumed Elecraft would address the issue with an updated KX3 -ie an >> 'KX3s' at some point. >> So I sold it awaiting the 'upgrade' which turned out to be the KX2 ! >> Which is far more stable out of the box. >> I'm happy to now order a KX2! >> 73/72 >> Dan VA3MA >> >>> On May 30, 2016, at 4:01 AM, David Anderson wrote: >>> >>> Dan , >>> >>> I am surprised that you couldn't get WSJT to go with your KX3 and had to >>> sell it. >>> >>> I am using my KX3 (note not a KX2) on WSJT on 144 MHz EME JT65b. I did >>> however do the extended temperature VFO compensation first and that perhaps >>> is a key requirement. The KX3 was actually more stable than my original 144 >>> MHz transverter's TCXO, which I had to replace with a better TCXO to get >>> the transmit drift to satisfactory levels. >>> >>> >>> 73 from David GM4JJJ >>> >>>> On 30 May 2016, at 04:45, D Howard wrote: >>>> >>>> Luke >>>> I too sold my KX3 for the same reason- no WSJT. >>>> Happy to see KX2 capable with care >>>> Dan >>>> >>>>> On May 29, 2016, at 11:20 PM, Luke wrote: >>>>> >>>>> I just tried JT9 actually and had no problems. If you head over to >>>>> PSKReporter and type in my call sign you can see how it's been working >>>>> for me this evening. It seems to heat up a little faster using JT9, but >>>>> it's still managable. I don't mind taking a few minutes between QSO's to >>>>> let things cool off. From my understanding Gemsproducts.com already has >>>>> KX2 side handles in the works and I will definitely pick some up and see >>>>> how they work. I can only imagine that any more metal on the side to pick >>>>> up some extra heat will only be a good thing. >>>>> >>>>> Luke >>>>> AD0KI >>>>> >>>>> >>>>> >>>>> >>>>> From: Dan - VA3MA >>>>> To: Luke >>>>> Cc: Elecraft >>>>> Sent: Sunday, May 29, 2016 9:14 PM >>>>> Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? >>>>> >>>>> Luke >>>>> Thanks - just what I needed to know! >>>>> Have you tried JT9 ? >>>>> Perhaps some sort of heatsink/handles added to the case might help?? >>>>> 73 >>>>> Dan VA3MA >>>>> >>>>> >>>>> On 2016-05-29, at 22:37, Luke wrote: >>>>> >>>>> Hmm, not sure why it cut out my message. Here's what I wrote: >>>>> >>>>> I
Re: [Elecraft] KX2 on JT65 & JT9 ??
Wayne/et al: I run JT9 and JT65 with my KX3 often on 160 and 80...I had the temperature compensation performed at the factory when I purchased the rig and I utilize a cooling fan when running the JT modes or running a freq during a contest; I loaded Dimension 4 s/w for extra time stability. No heat drift problems here AND I didn't have to get ripped off by those 3rd party folks who market those grossly over-priced replacement heat sync "kits." With what serial # did you start using the new that rev E board? Will it be available for swapout by the fanatical few that need the latest and greatest? Tnx, in advance, for your reply. 71.5/72 de Jim Rodenkirch K9JWV -- View this message in context: http://elecraft.365791.n2.nabble.com/KX2-on-JT65-JT9-tp7618187p7618230.html Sent from the Elecraft mailing list archive at Nabble.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] KX2 on JT65 & JT9 ??
Elecraft does not do the extended temperature comp because it would add too much to the price of the radio for a feature that only a few people need. I’m surprised when people buy a KX3, then are upset that it performs to its specs instead of performing much better than specified. Both the FT-817 and the KX3 are 1 ppm frequency stability, though the FT-817 is only specified for that at 25º C after a 1 hour warmup. The KX3 specs are for 0-50º C. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 30, 2016, at 4:50 AM, D Howard wrote: > > David > I thought at the price I paid for the KX3 I shouldn't have to do the > compensation nor run the KX3 at such reduced power once compensated. My > trusty old FT817 worked fine. > I also assumed Elecraft would address the issue with an updated KX3 -ie an > 'KX3s' at some point. > So I sold it awaiting the 'upgrade' which turned out to be the KX2 ! > Which is far more stable out of the box. > I'm happy to now order a KX2! > 73/72 > Dan VA3MA > >> On May 30, 2016, at 4:01 AM, David Anderson wrote: >> >> Dan , >> >> I am surprised that you couldn't get WSJT to go with your KX3 and had to >> sell it. >> >> I am using my KX3 (note not a KX2) on WSJT on 144 MHz EME JT65b. I did >> however do the extended temperature VFO compensation first and that perhaps >> is a key requirement. The KX3 was actually more stable than my original 144 >> MHz transverter's TCXO, which I had to replace with a better TCXO to get the >> transmit drift to satisfactory levels. >> >> >> 73 from David GM4JJJ >> >>> On 30 May 2016, at 04:45, D Howard wrote: >>> >>> Luke >>> I too sold my KX3 for the same reason- no WSJT. >>> Happy to see KX2 capable with care >>> Dan >>> >>>> On May 29, 2016, at 11:20 PM, Luke wrote: >>>> >>>> I just tried JT9 actually and had no problems. If you head over to >>>> PSKReporter and type in my call sign you can see how it's been working for >>>> me this evening. It seems to heat up a little faster using JT9, but it's >>>> still managable. I don't mind taking a few minutes between QSO's to let >>>> things cool off. From my understanding Gemsproducts.com already has KX2 >>>> side handles in the works and I will definitely pick some up and see how >>>> they work. I can only imagine that any more metal on the side to pick up >>>> some extra heat will only be a good thing. >>>> >>>> Luke >>>> AD0KI >>>> >>>> >>>> >>>> >>>> From: Dan - VA3MA >>>> To: Luke >>>> Cc: Elecraft >>>> Sent: Sunday, May 29, 2016 9:14 PM >>>> Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? >>>> >>>> Luke >>>> Thanks - just what I needed to know! >>>> Have you tried JT9 ? >>>> Perhaps some sort of heatsink/handles added to the case might help?? >>>> 73 >>>> Dan VA3MA >>>> >>>> >>>> On 2016-05-29, at 22:37, Luke wrote: >>>> >>>> Hmm, not sure why it cut out my message. Here's what I wrote: >>>> >>>> I've used my KX2 on WSPR and JT65 and it appears to be plenty stable. I >>>> used to have a KX3 and sold it because it wouldn't decode WSPR between >>>> transmit cycles due to excessive drift. I've kept the KX2 to <5 watts >>>> because the right sideplate gets very hot with the high duty cycle. >>>> >>>> I've actually just been sitting here running JT65 @ 10 watts when I got >>>> your email, and it is doing pretty well. I had 3 back to back QSO's and on >>>> the last transmission the PA Temp got up to 47C (~117F) which doesn't seem >>>> too bad. As it cools off there is no drifting or slanting of signals on >>>> the waterfall either. I think the 1 minute on/off duty cycle of JT65 is >>>> very doable with the KX2, and WSPR might be pushing it. The other night >>>> the sideplate got quite hot running WSPR at 5 watts. >>>> >>>> Luke >>>> AD0KI >>>> >>>> >>>> From: Dan - VA3MA >>>> To: Luke >>>> Sent: Sunday, May 29, 2016 8:12 PM >>>> Subject: Re: [Elecraft] KX2 on JT65 & JT9 ?? >>>> >>>> Luke >>>> No conten
Re: [Elecraft] KX2 on JT65 & JT9 ??
On Mon,5/30/2016 4:50 AM, D Howard wrote: I thought at the price I paid for the KX3 I shouldn't have to do the compensation nor run the KX3 at such reduced power once compensated. My trusty old FT817 worked fine. That's your problem, not Elecraft's. The KX3 was specifically designed as a backpacking radio that could also do other things. AFAIK, neither Wayne nor Eric is a JT65 op or a VHF op, so they didn't think of the thermal issue until users brought it up. When they did, Elecraft developed the temperature compensation as a solution and also improved the heat sink. I did both to my KX3. It took about three hours, half of which was reading the instructions and cooling the radio for the second part of the procedure. Reading ARRL Lab test reports clearly shows that Your "trusty old FT817" isn't one-tenth the radio that the KX3 is. The KX3 is FAR cleaner on TX and FAR superior on RX. But the KX3 is fundamentally an HF + 6M radio, not a 2M radio. A few weeks ago, we used a KX3 with the KXPA100 and PX3 for a very successful mobile run in the 7th Area QSO Party. Slide #8 in k9yc.com/7QP.pdf shows the setup that W6GJB put together. W6GJB drove while W6JTI operated, riding shotgun. The KXPA100 is on the floor of the back seat. 73, Jim K9YC __ 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] KX2 on JT65 & JT9 ??
I ran extensive frequency drift measurements on the KX3 in 2014, purchasing an aftermarket heat sink for my KX3. After running the temperature compensation procedure I reported: I re-ran the JT65 testing sequences to measure frequency drift after temperature compensation was done. Initial sequence shows the most drift with a peak +13 Hz upwards drift in the first sequence. The remainder Showed under 10-Hz with the delta trending to +5 Hz in later sequences. Testing was done on 50-MHz which would show the most drift; I did not check for HF drift which one would expect to be proportionally less. http://www.kl7uw.com/KX3.htm Data is displayed on some charts accessible by link from main page. I also acquired the heat sink produced by Elecraft but have not tried it considering the one I previously purchased has much more thermal mass. Drift before adding heat sink and performing Temp comp. was 103-Hz accumulated over 20-min test of running key-down in CW for 50-seconds followed by 70-seconds in Rx, repeating ten times. I use a professional frequency counter usable to 26-GHz whose TCXO appears stabile against a Rubidium reference. I have not run the KX3 on JT65 very much (a little on 6m a couple years ago); haven't built IQ interface. I have a K3 with EXREF running 2m-eme and 23cm-eme with transverters so the KX3 gets used for other kinds of use. I have the 2M board installed. Haven't checked drift on 2m with it. Reading the mail to see what will be reported for the KX2. 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: dubus...@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] KX2 on JT65 & JT9 ??
Jim When one makes it personal I'm done Have a happy day and enjoy ham radio 72 > On May 30, 2016, at 1:24 PM, Jim Brown wrote: > >> On Mon,5/30/2016 4:50 AM, D Howard wrote: >> I thought at the price I paid for the KX3 I shouldn't have to do the >> compensation nor run the KX3 at such reduced power once compensated. My >> trusty old FT817 worked fine. > > That's your problem, not Elecraft's. The KX3 was specifically designed as a > backpacking radio that could also do other things. AFAIK, neither Wayne nor > Eric is a JT65 op or a VHF op, so they didn't think of the thermal issue > until users brought it up. When they did, Elecraft developed the temperature > compensation as a solution and also improved the heat sink. I did both to my > KX3. It took about three hours, half of which was reading the instructions > and cooling the radio for the second part of the procedure. > > Reading ARRL Lab test reports clearly shows that Your "trusty old FT817" > isn't one-tenth the radio that the KX3 is. The KX3 is FAR cleaner on TX and > FAR superior on RX. But the KX3 is fundamentally an HF + 6M radio, not a 2M > radio. A few weeks ago, we used a KX3 with the KXPA100 and PX3 for a very > successful mobile run in the 7th Area QSO Party. Slide #8 in > k9yc.com/7QP.pdf shows the setup that W6GJB put together. W6GJB drove while > W6JTI operated, riding shotgun. The KXPA100 is on the floor of the back seat. > > 73, Jim K9YC > > > __ > 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...@me.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] KX2 on JT65 & JT9 ??
Edward Your test results are much appreciated! Any very informative! Thank you kind sir Would be interesting to be able to compare a newer KX3 with rev E boards to your past test results 73 Dan > On May 30, 2016, at 2:05 PM, Edward R Cole wrote: > > I ran extensive frequency drift measurements on the KX3 in 2014, purchasing > an aftermarket heat sink for my KX3. After running the temperature > compensation procedure I reported: > > I re-ran the JT65 testing sequences to measure frequency drift after > temperature compensation was done. > Initial sequence shows the most drift with a peak +13 Hz upwards drift in > the first sequence. The remainder > Showed under 10-Hz with the delta trending to +5 Hz in later sequences. > > Testing was done on 50-MHz which would show the most drift; I did not check > for HF drift which one would expect to be proportionally less. > > http://www.kl7uw.com/KX3.htm > > Data is displayed on some charts accessible by link from main page. > > I also acquired the heat sink produced by Elecraft but have not tried it > considering the one I previously purchased has much more thermal mass. Drift > before adding heat sink and performing Temp comp. was 103-Hz accumulated over > 20-min test of running key-down in CW for 50-seconds followed by 70-seconds > in Rx, repeating ten times. > > I use a professional frequency counter usable to 26-GHz whose TCXO appears > stabile against a Rubidium reference. > > I have not run the KX3 on JT65 very much (a little on 6m a couple years ago); > haven't built IQ interface. I have a K3 with EXREF running 2m-eme and > 23cm-eme with transverters so the KX3 gets used for other kinds of use. I > have the 2M board installed. Haven't checked drift on 2m with it. > > Reading the mail to see what will be reported for the KX2. > > 73, Ed - KL7UW > http://www.kl7uw.com >"Kits made by KL7UW" > Dubus Mag business: >dubus...@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 va...@me.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] KX2 on JT65 & JT9 ??
On Mon,5/30/2016 12:09 PM, Dan - VA3MA wrote: When one makes it personal Dan, My apology if you were offended. Perhaps you're new to Elecraft. Many of us began buying their radios when they only sold kits, and everyone built their own. Indeed, many of us OTs built Heathkits. Elecraft buyers were not buying appliances,we were accustomed to working on our radios, and many builders developed mods that were later adopted and sold by Elecraft. A major reason that Elecraft products are as good as they are is that the owners are engineers, and they don't let their egos get in the way of taking input from their customers. The K3 was the first Elecraft radio sold factory-built, and it seems to have attracted buyers with different expectations. My post was intended to help you realize that Elecraft is a company that does that. But it takes time to do analyze the problem, do the design work, and put those changes into production. With their competitors, you MUST buy a whole new radio to get the upgrade. It took Yaesu three product cycles (about ten years) to fix the awful key clicks in their flagship radio, the FT1000MP. With Elecraft, you can often buy only the upgrade, or even simply download new firmware. 73, Jim K9YC __ 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
