Per page 31 of the K3 owners manual sez.... DATA A can be used for all audio-shift transmission modes, including AFSK and PSK-31. VFO A shows the transmit suppressed carrier frequency and USB is normal for DATA A. Compression is automatically set to 0 to reduce transmitted signal distortion.
AFSK A is also an audio-shift transmission but is optimized for RTTY. VFO A displays the RTTY mark frequency and LSB is normal. The built-in text decoder and the dual-passband RTTY filter can be used. 73, Mike NF4L > On Mar 17, 2015, at 12:41, Fred Jensen <[email protected]> wrote: > > Can you 'splain the difference between AFSK and DATA A? I have been running > RTTY in AFSK using MMTTY and the sound in/out from my "radio laptop." Just > two stereo cables using LINE IN/OUT on the back of the K3, no other interface > hardware. VOX for PTT. It seems to work fine, am I missing something? > > 73, > > Fred K6DGW > - Northern California Contest Club > - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 > - www.cqp.org > > On 3/16/2015 7:55 PM, Don Wilhelm wrote: >> Sam, >> >> You are doing it right. >> >> DATA A mode is like SSB with the following exceptions: >> 1) TX EQ is disabled in DATA A mode >> 2) Audio compression is disabled in DATA A mode. >> 3) one can set the audio input to LINE IN for DATA A mode - no need to >> change it from MIC audio when using data modes. > > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
