Hello Jim, Most of us EME types have sequencers, external preamps, and numerous old coaxial relays. While the TX delay built into the K3 may be fine for its own switching, and even for modern QSK amplifiers, there is a great amount of relief knowing that WSJT will switch everything well ahead of the start of its full power, all-out, RF transmit cycle ;-) VY 73, Lance
On 7/19/2012 9:20 PM, Jim Brown wrote: > On 7/19/2012 1:24 PM, Joe Subich, W4TV wrote: >> You will have better results if you use a serial port or USB to serial >> converter with a single transistor driver on the RTS line for PTT as >> teh JT65 software switches the transmitter "on" one second before the >> tones start to avoid clipping the initial tones or hot switching any >> amplifier/preamplifier relays. > Joe, > > Doesn't the K3's TXDELAY setting take care of that? I'm SURE that it > does for the power amp, and I'd be very surprised if it wasn't also > implemented to protect its own relays. > > 73, Jim K9YC > > ______________________________________________________________ > 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 > -- Lance Collister, W7GJ (ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ) P.O. Box 73 Frenchtown, MT 59834-0073 USA TEL: (406) 626-5728 QTH: DN27ub URL: http://www.bigskyspaces.com/w7gj Windows Messenger: [email protected] Skype: lanceW7GJ 2m DXCC #11/6m DXCC #815 Interested in 6m EME? Ask me about subscribing to the Magic Band EME email group, or just fill in the request box at the bottom of my web page (above)! ______________________________________________________________ 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
