> If you insist on using FSK for RTTY instead of AFSK, then > yes, you need another port to do your FSK keying from, and > unlike CW this port cannot be the same one that you use for > radio control (frequencies, etc.). You will most likely need > a one-transistor switch to convert the output from the port > to TTL level for input to the K3's ACC connector.
If you want to do FSK you will need software other than Ham Radio Deluxe and DM780 since they do not support FSK. 73, ... Joe, W4TV > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Richard Ferch > Sent: Tuesday, January 06, 2009 7:31 PM > To: 'Dave Yarnes'; [email protected] > Subject: Re: [Elecraft] K3 RTTY setup with MMTTY > > > Hi Dave, > > For sound card digital modes other than RTTY, you use the > K3's DATA A mode. This does not require a serial port > connection for keying - it transmits signals based on the > audio from the sound card. For RTTY, you can do AFSK RTTY the > same way, i.e. with an audio connection, although there is a > different data sub-mode on the K3 called AFSK A that is > specifically optimized for RTTY. Both of these modes will > work with a single serial port connected to the radio's > RS-232 jack for radio control, plus a pair of audio cables > between the sound card LINE IN and LINE OUT jacks and the > K3's LINE OUT and LINE IN jacks. That's all the interface you need. > > If you insist on using FSK for RTTY instead of AFSK, then > yes, you need another port to do your FSK keying from, and > unlike CW this port cannot be the same one that you use for > radio control (frequencies, etc.). You will most likely need > a one-transistor switch to convert the output from the port > to TTL level for input to the K3's ACC connector. > > For getting started in digital modes, you can forget all > about FSK and just get your feet wet with AFSK. AFSK RTTY is > perfectly compatible with FSK RTTY, so you will not be > missing anything. > > 73, > Rich VE3KI > > > -----Original Message----- > From: Dave Yarnes [mailto:[email protected]] > Sent: January 6, 2009 1:50 AM > To: Richard Ferch; [email protected] > Subject: Re: [Elecraft] K3 RTTY setup with MMTTY > > > Hi Richard and All, > > O.K. Since I'm just getting into this digital stuff, I'm not > afraid to ask > a dumb question. Does what you say mean that I cannot use Ham Radio > Deluxe, plus its associated program digital master 780, to > both control my > K3, as well as send and receive digital modes like PSK31 or > RTTY? I think i > > can receive these modes with just the one serial port > connection, but not > sure about sending. > > Dave W7AQK > > > ----- Original Message ----- > From: "Richard Ferch" <[email protected]> > To: <[email protected]> > Sent: Monday, January 05, 2009 7:12 PM > Subject: Re: [Elecraft] K3 RTTY setup with MMTTY > > > > Ralph K1ZZI wrote: > > > >> I only use one serial port here running FSK/MMTTY under N1MM and it > > controls my K3 perfect (FSK D). > > > > What do you mean by "controls", Ralph? Can you change frequency from > > the computer? Does N1MM have frequency information from the radio? > > > > If so, I would love to know how you are getting the FSK data to be > > transmitted to the radio without using another port (either another > > serial port, or maybe a parallel port using EXTFSK). > > > > If not, and the only radio control you have is PTT and FSK > keying (but > > no frequency control), then you are missing out on some of N1MM > > Logger's best capabilities and features. The second sentence in the > > N1MM user manual is: "You really won't be impressed without > the radio > > connected" - that's how important the software's author > thinks those > > features are. > > > > 73, > > Rich VE3KI > > > > _______________________________________________ > > 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 _______________________________________________ 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
