Following the listed procedure made made my KX3's previously iffy performance on 6m digimodes acceptable and even just about acceptable for HF QRSS.
I used the 5th harmonic of my K3's 10MHz GPS locked reference as the calibration signal Dave Ww2r Message: 14 Date: Mon, 19 Nov 2012 18:13:03 -0800 From: Wayne Burdick <[email protected]> Subject: [Elecraft] KX3 and digital modes To: [email protected], Elecraft Reflector <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Hi all, Lance (W7GJ) recently described his efforts to use the KX3 for JT65 for 6-meter moonbounce. Lance pretty much wrote the book on this niche, so it's not surprising that he went to extremes, rolling his own heatsink to reduce the RX-TX frequency shift to just a few Hz on 6 meters. He also used our new temperature-compensation procedure. I admire Lance's dedication to this pursuit--and put a lot of time in on it myself. But I wanted to point out that supplemental heatsinking of the KX3 is *not* needed for typical digital-mode operation with the KX3. PSK31, RTTY, etc. will all function "out of the box" on the lower bands (20 meters is by far the most common band for digital communications). If you want to use JT65 or other extremely narrowband modes, I do suggest doing extended VFO temperature compensation. There's a procedure for this on our KX3 page, and if you don't have a very stable signal source, you can use our new XG50 RF generator. 73, Wayne N6KR ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
