Doug, The K3 is capable of detecting and using DTR and RTS to operate either the KEY or PTT. See the CONFIG: PTT -- KEY menu item.
There is one downside to using these inputs (it also applies the the "simple keying circuit" in many digital help files). If the computer is booted while the K3 is turned on, those lines will become momentarily active. Just remember to put the K3 in TX TEST before booting the computer. Once the computer has finished its com port tests, there is no problem. 73, Don W3FPR On 1/13/2011 9:10 AM, Doug VE3VS wrote: > I have been enjoying operating my K3 for several months. One of my interests > includes RTTY. > > I use the latest MMTTY software (AFSK), have the two audio lines connected, > and use VOX to operate this mode. At the same time, the serial cable from > the computer to the radio remains connected. > > Question - Is there a set-up that will allow the computer to signal PTT > through the serial cable in order to transmit the RTTY tones, rather than > enabling the VOX switch? > ______________________________________________________________ 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
