Actually the KX3 is pretty hard to improve, but the one obvious
consideration is that the internal batteries should be LiPo. Another possibility would be a different way to generate the oscillator freq to ensure super-stability; even after the refrigerator procedure mine drifts -3 or -4 Hz in a WSPR interval, which is right at the ragged edge. I can't think of any other changes but others may. 73, Tony KT0NY ______________________________________________________________ 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 |
My wish list for the KX3 would be to serve as K2 replacement,
price/performance wise. While I could list some UI and under-the-hood improvements, and I agree with Tony's suggestion below, I want to make a form-factor suggestion. I'm imagining the KX3 repackaged so that it can be used alone as a QRP rig, but can also be docked-into a larger chassis (K2-sized?) as its front panel. That lager box could include integration of the guts of the KXPA100, a bigger battery (like 6_Ah or so), a bigger speaker, a flip-up or flip-out (on a side) display for an integral PX3 replacement. (Or better from my perspective, a WiFi or Bluetooth interface sending waterfall data to a phone or tablet app?) Have it both ways: A high-end QRP rig, or a reasonably compact 100W full-featured portable. DE KC6ZKT --... ...-- PS: Tony, my KX2 seems more frequency stable than my KX3 on WSPR. On 3/25/19 20:58 PM, Tony Estep wrote: > Actually the KX3 is pretty hard to improve, but the one obvious > consideration is that the internal batteries should be LiPo. Another > possibility would be a different way to generate the oscillator freq to > ensure super-stability; even after the refrigerator procedure mine drifts > -3 or -4 Hz in a WSPR interval, which is right at the ragged edge. I can't > think of any other changes but others may. > > 73, > Tony KT0NY ______________________________________________________________ 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 |
In reply to this post by Tony Estep
The KX3 appeals to the portable operator better than the larger
K2. Certainly some upgrades for it would be desirable. But my KX3 replaced a FT-817. Main use is for mobile coupled with KXPA100 and 2m amplifier (I have the 2M module). The other prime use is as a 2m IF for my portable mw station where 1w is sufficient on 2m to drive the 10 GHz transverter. Glad to have IQ I/F for digital modes or spectrum sw run in a laptop. Better freq stability on 6m & 2m would be nice. BTW the KX3 has been used on 2m-eme for DXpeditions where small size matters. Its small enough to pack in my carry-on luggage. 73, Ed - KL7UW ------------------------------ From: Steve Sergeant <[hidden email]> To: [hidden email] Subject: Re: [Elecraft] Why not a KX4? Message-ID: <[hidden email]> Content-Type: text/plain; charset=utf-8 My wish list for the KX3 would be to serve as K2 replacement, 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: [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 |
In reply to this post by Steve Sergeant
On Mon, Mar 25, 2019 at 11:20 PM Steve Sergeant <[hidden email]>
wrote: > ...my KX2 seems more frequency stable than my KX3 on WSPR... ================== Yep, becuz it has a different scheme for generating the osc freq (if I'm not mistaken, synth vs VFO). So that's one of my wished-for improvements. ______________________________________________________________ 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 |
In reply to this post by Edward R Cole
On 3/26/2019 12:21 AM, Edward R Cole wrote:
> Better freq stability on 6m & 2m would be nice. Thanks to extensive work by W7GJ, a production change was made several years ago to improve stability with a redesign of the main board. There's also a user temperature calibration routine that helps a lot. 73, Jim K9YC ______________________________________________________________ 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 |
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