> First, I'm unclear as to whether a keying interface (simple > NPN 1K combo) is needed for the FSK IN and DTR? I am guessing > that FSK IN comes from the TXD line out from the computer and > DTR from the DTR out.
If you want to use MMTTY in the FSK mode, make two NPN/1K interfaces. Connect one from TxD to the FSK input on the ACC jack and connect the other from DTR to the PTT input on the ACC jack. That puts everything on one cable/plug. > Then under the COM Port Radio Command, I'm not sure what > needs to be specified. Do we chose Kenwood (like N1MM in the > old days) or does it require something special? Yes, "Kenwood" works with MMTTY 1.65. MMTTY 1.66G calls the protocol Kenwood/Elecraft to eliminate any confusion. Do not check either 'flow control' or DTR/RTS PTT. Since you will be using FSK, set the "Frequency offset" to "None" since the K3 reports the mark frequency (in FSK D or AFSK A). 73, ... Joe, W4TV > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Julius Fazekas > Sent: Sunday, January 04, 2009 11:16 AM > To: [email protected] > Subject: [Elecraft] K3 RTTY setup with MMTTY > > > I'm running into problems interfacing my K3 with MMTTY on transmit. > > First, I'm unclear as to whether a keying interface (simple > NPN 1K combo) is needed for the FSK IN and DTR? I am guessing > that FSK IN comes from the TXD line out from the computer and > DTR from the DTR out. > > Then under the COM Port Radio Command, I'm not sure what > needs to be specified. Do we chose Kenwood (like N1MM in the > old days) or does it require something special? > > How easy is it to damage the RS-232 / AUX I/O on the K3, if > one makes the wrong connection? > > Frustrated in Tennessee, > Julius > > Julius Fazekas > N2WN > > Tennessee Contest Group > TnQP http://www.tnqp.org/ > > Elecraft K2/100 #4455 > Elecraft K3/100 #366 _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
