Igor Sokolov wrote: > It has started with complains of some of our contacts in the contest. They > told us that the weighting of out TX CW is not standard. > Two channel oscilloscope was brought into shack and 3 K3 tcvrs were checked: > SN 1651 SW ver 3.06 > SN 2929 SW ver 3.68 > SN 3553 SW ver. 3.41 > On all 3 units series of dots were sent using external keyer with 50% > weight. While on the monitor output the weight remained to be 50% the RF > output showed shortening of dots (and therefore lengthening of spaces) by 7 > or 8 msec. This effect does not depend on WPM speed and therefore less > pronounced at slower speeds. > Could somebody confirm this please. We do not want to trouble Elecraft > without being 100% sure that the problem exists.
What is CONFIG: TX DLY set to? I have noticed that setting it higher than about 10 or 12 causes CW element shortening. This is the number of ms delay from the time the KEY OUT jack goes low and RF is generated. A true QSK amp should be able to work with the default setting of 8. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ______________________________________________________________ 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
