"So here is what I determined: with 35 wpm dits (or dahs, it doesn't matter) from the internal keyer in Full QSK mode, CONFIG TX DLY = 8 (normal), there is a minimum of 5.6 ms between KEY OUT low and the first whiff of RF. I say minimum, because there is a certain amount of jitter in the length of the element, and the interval is sometimes a bit longer. The interval after RF before KEY OUT goes high is similar."
I made similar measurements on my Kenwood TS-590S with a Rogol DS1054Z. However, I also captured RX audio on one 'scope channel. I found the limiting factor for QSK was the time it took the receiver to recover after the internal TR relay had switched. The practical QSK limit for the TS-590S was about 26 wpm. Any faster than that and the receiver did not "open" between elements. 73, Andy, k3wyc ______________________________________________________________ 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
