KX3 WSPR and heatsinks
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Saw a heatsink on Ebay for the KX3. Does anyone know if these will stabilize the frequency enough for WSPR use? Thanks for any input. 73, Mike KØAZ GOD BLESS AMERICA KØAZ Mike Sanders EM37cd www.k0az.com SouthWest Missouri ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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There are several designs. You might be better
input if you provide a link to that one. Phil W7OX On 12/25/14 12:17 PM, Mike Sanders wrote: > Saw a heatsink on Ebay for the KX3. Does anyone know if these will > stabilize the frequency enough for WSPR use? Thanks for any input. > 73, Mike KØAZ > > > GOD BLESS AMERICA > KØAZ Mike Sanders EM37cd > www.k0az.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Good idea and thanks Phil. Item number on ebay below.
Elecraft KX3 heat sink MADE IN U.S.A. Item number:171574557034 73 GOD BLESS AMERICA KØAZ Mike Sanders EM37cd www.k0az.com SouthWest Missouri -----Original Message----- From: Elecraft [mailto:[hidden email]] On Behalf Of Phil Wheeler Sent: Thursday, December 25, 2014 2:23 PM To: Elecraft Reflector Subject: Re: [Elecraft] KX3 WSPR and heatsinks There are several designs. You might be better input if you provide a link to that one. Phil W7OX On 12/25/14 12:17 PM, Mike Sanders wrote: > Saw a heatsink on Ebay for the KX3. Does anyone know if these will > stabilize the frequency enough for WSPR use? Thanks for any input. > 73, Mike KØAZ > > > GOD BLESS AMERICA > KØAZ Mike Sanders EM37cd > www.k0az.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Mike Sanders
On 12/25/2014 2:17 PM, Mike Sanders wrote:
> > Saw a heatsink on Ebay for the KX3. Does anyone know if these will > stabilize the frequency enough for WSPR use? Thanks for any input. > 73, Mike KØAZ I've used my KX3 on WSPR with the stock heatsink. As long as I keep power low, the drift is quite tolerable. (like -2 to +2) thanks much and 73, ben ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Mike Sanders
Don't overlook doing the extended temperature calibration procedure
http://www.elecraft.com/manual/KX3%20Custom%20VFO%20TC%20rev%20A9.pdf I've done it on a small number of KX3's and the improvement in thermal stability is considerable. If you haven't run it before, it's time consuming so be patient and be prepared to re-run it as it's easy to make a small mistake. I also had issues with getting it to work on one of the KX3's (mine, naturally) after running straight through on the others. It couldn't all have been finger trouble, but after multiple, patient re-runs, it went through and my KX3 is now remarkably stable over a wide temperature range. It was well worth the effort. Season's Greetings, one and all. 73 Dave G3TJP ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Mike Sanders
I would check with Howie at proaudio engenering there is a link to him on the botto left of my web page www.gemsproducts.com
73 Scott AK6Q -------- Original message -------- From: "Mike Sanders [via Elecraft]" <[hidden email]> Date:12/25/2014 12:17 (GMT-08:00) To: KD6QZX <[hidden email]> Subject: KX3 WSPR and heatsinks Saw a heatsink on Ebay for the KX3. Does anyone know if these will stabilize the frequency enough for WSPR use? Thanks for any input. 73, Mike KØAZ GOD BLESS AMERICA KØAZ Mike Sanders EM37cd www.k0az.com SouthWest Missouri ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] If you reply to this email, your message will be added to the discussion below:
http://elecraft.365791.n2.nabble.com/KX3-WSPR-and-heatsinks-tp7596379.html
K3 #348 KX3 #2499
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In reply to this post by DaveL G3TJP
Thanks to those who responded. I will try the calibration mentioned by Dave
below first. It may do the job. 73 Mike GOD BLESS AMERICA KØAZ Mike Sanders EM37cd www.k0az.com SouthWest Missouri Don't overlook doing the extended temperature calibration procedure http://www.elecraft.com/manual/KX3%20Custom%20VFO%20TC%20rev%20A9.pdf I've done it on a small number of KX3's and the improvement in thermal stability is considerable. If you haven't run it before, it's time consuming so be patient and be prepared to re-run it as it's easy to make a small mistake. I also had issues with getting it to work on one of the KX3's (mine, naturally) after running straight through on the others. It couldn't all have been finger trouble, but after multiple, patient re-runs, it went through and my KX3 is now remarkably stable over a wide temperature range. It was well worth the effort. Season's Greetings, one and all. 73 Dave G3TJP ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Mike,
You must do the extended temp calibration before doing any digital modes; that's a given. KX3 is fine for CW and SSB without it -- and it takes 2-3 hours to do (not complex, but you have to cool then heat the rig), so if they did it at Elecraft they'd have to add that to the cost of the rig. Heat sinks: There are several out there. That one at eBay looks a bit "thin", and no telling about the quality of machining, etc. But the price is attractive. My choice early on (when there were only one or two options) was this one http://www.ve7fmn.ca/ Cooler KX. There are some reviews of it here http://www.eham.net/reviews/detail/11702 Definitely more expensive but you really know what you're getting -- good, deep cooling fins and plenty of mass with a heat sink that is well-machined and mounted. 73, Phil W7OX On 12/26/14 7:16 AM, Mike Sanders wrote: > Thanks to those who responded. I will try the calibration mentioned by Dave > below first. It may do the job. 73 Mike > > > GOD BLESS AMERICA > KØAZ Mike Sanders EM37cd > www.k0az.com > SouthWest > Missouri > > > Don't overlook doing the extended temperature calibration procedure > http://www.elecraft.com/manual/KX3%20Custom%20VFO%20TC%20rev%20A9.pdf > > I've done it on a small number of KX3's and the improvement in thermal > stability is considerable. If you haven't run it before, it's time > consuming so be patient and be prepared to re-run it as it's easy to make a > small mistake. I also had issues with getting it to work on one of the > KX3's (mine, naturally) after running straight through on the others. It > couldn't all have been finger trouble, but after multiple, patient re-runs, > it went through and my KX3 is now remarkably stable over a wide temperature > range. It was well worth the effort. > > > > Season's Greetings, one and all. 73 Dave G3TJP > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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