Once I did a contest where the KX3 was keyed by N1MM logging software via serial port/simple transistor switch, and I found the CW sounded quite choppy. I replaced the transistor circuit with one of those K1EL winkeyer kits, and it still sounded choppy, but I had read an article on the web somewhere about switchover delays in the KX3. The author of that article recommended a particular value for the fixed delay compensation parameter in the Winkeyer, and when I configured that, the CW sounded FB.
It is quite possible that some tweaking of the internal keyer code in the KX3 could produce some improvements, but so far I haven't made any measurements myself to investigate this topic. 73, Matt VK2RQ On 22/08/2013, at 5:13 PM, Klaus Koppendorfer <[email protected]> wrote: > Tnx Mat, yes i know this article – measurements are done with 20 wpm > With higher speeds it will become more worth !! > > Von: Matt VK2RQ [mailto:[email protected]] > Gesendet: Donnerstag, 22. August 2013 08:48 > An: Klaus Koppendorfer > Cc: Dick Dievendorff; #elecraft > Betreff: Re: [Elecraft] Elecraft keyer chip replacement > > This article may be of interest: > https://sites.google.com/a/ke7x.com/www/home/miscellaneous-k3-information/k3-and-kx3-cw-wgt > > 73, > Matt VK2RQ > > On 22/08/2013, at 4:41 PM, Klaus Koppendorfer <[email protected]> wrote: > > Is there actualy a timing problem with kx3 cpu ?? > Keying with 30wpm and more the dot-dash ratio is incorrect - very short dots > like a machine gun :) > Compared to my k1, kx1,k2 and k3 the cw from internal keyer of kx3 is terrible > > Dick, do you think there will be a solution in firmware soon ?? > > Vy73 > Klaus > Oe6kyg > > > Elecraft does not use separate keyer chips. Morse code generation is > performed by the main microcontroller. > > Dick, K6KR > > > Since I am interested in the Ultimatic mode and the Bug mode I have on my > Pico keyer, can anyone tell me (I am mostly concerned with the KX1 and also > the KX3 keyer chip): > > 1) > Do the Elecraft keyer chips have these modes? > > 2) > Is the Elecraft keyer keyer chip (drop-in) upgradable to a Pico Keyer chip? > > David, k3tue > ______________________________________________________________ > 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 > > ______________________________________________________________ > 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 > ______________________________________________________________ > 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 ______________________________________________________________ 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
