Mike, FSK output (pin 5) of the BuxComm to pin 1 of the ACC connector. PTT output (pin 3) of the BuxComm to pin 4 of the ACC connector. FSK/PTT common (pin 2) to pin 5 of the ACC connector.
Rx Audio - 3.5mm stereo cable to Line Out. Connect pin 4 to tip and pin 2 to sleeve. For PSK/AFSK add another 3.5mm audio cable to Line Out. Pin 1 to tip and pin 2 to sleeve. The male DB15HD connector and hoods for the ACC jack are available at most Radio Shack stores in the US as were the 5 pin DIN plug for the Rascal when I last checked. Not very difficult. For FSK set Digital mode to FSK D and go to town. Make sure "pitch" in data modes is set to the same frequency as you use for "Mark" in your digital software (e.g. MMTTY or MixW). 73, ... Joe, W4TV > -----Original Message----- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike > Sent: Thursday, October 01, 2009 2:36 PM > Cc: elecraft@mailman.qth.net > Subject: Re: [Elecraft] K# and data modes > > > Julian, G4ILO wrote: > > quote author="Mike-39"> > > Has anyone used a Buxcomm Rascal interface with the K3? If so, what > > cable does it use? > > > > What other interface is used for RTTY and PSK31? I want to do direct > > keying, not audio, and I want to copy with the 'puter. > > > > Does the K3 come with the mating plug for the acc jack? > > > > > > There is no need to use a special interface with the K3. The audio > > in/out already has isolating transformers, so just the RS-232 cable > > that you need for updating firmware plus a couple of 3.5mm stereo > > double ended screened cables from your compouter shop are all you > > need. > > > > Not quite sure what you mean by direct keying, especially in the > > context of PSK31. The K3 can do direct FSK RTTY, though I've never > > used it and don't see what the advantages are, especially > if you'll be > > using sound card software to do the decoding. I have a hunch the K3 > > does FSK by generating audio within the DSP anyway. > > > > > Hi Julian - > > Direct keying = FSK > Audio keying = ASFK > > See http://www.aa5au.com/gettingstarted/rtty_start_intro.htm for some > pro/con arguments re: RTTY. I've always used FSK, so it's my > preference > not to change. I also don't want to deal with the offset > between SSB and > FSK. Or does the K3 deal with that internally? > > I'm not too sure about the PSK31 scheme either. > > 73, Mike > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
