> 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 Hi Vic, QSK is not used here. We are using external PTT. Does TX DLY setting affect sending anyway? I think in at least one case it is 20ms but why should it affect anything in a series of dots sent with PTT permanently enabled?
73, Igor UA9CDC ______________________________________________________________ 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
