Hi Joe, If I use DATA A REV will that make it correct? I am guessing yes from what I remember from reading in the past that changes from USB to LSB. Or would I be better off to use a REV setting in the software??
Time to read the manual again. :-) ~73 Don KD8NNU On Sun, Apr 22, 2012 at 8:54 AM, Joe Subich, W4TV wrote: >> If you have the K3 in DATA A mode does it matter. Once you tune into >> the signal and my system decodes I would suspect that I am fine. > > If you are using DATA A for RTTY you will likely find the signals are > "upside down" (reversed) unless your software compensates. Most RTTY > software expects the lower audio tone to me MARK - which is correct > for normal LSB FSK. > > The other issue with DATA A (USB) is that the display (dial) frequency > will be the suppressed carrier - not the actual RTTY frequency which > will be "VFO + MARK TONE (the higher of the two tones)" > > 73, > > ... Joe, W4TV > > > On 4/22/2012 7:59 AM, gold...@charter.net wrote: >> >> Dear Group, >> >> RTTY is supposted to be LSB and PSK on USB. >> >> If you have the K3 in DATA A mode does it matter. Once you tune into >> the signal and my system decodes I would suspect that I am fine. >> >> From what my brain is telling me is that a RTTY signal that is >> posted >> if you are in DATA A and its in USB then all I need to do is turn >> lower >> in FRQ to find the signal and all shoud be good. >> >> What am I missing if anything with the RTTY. Will it have a big >> effect >> on RX decode or TX to someone else. >> >> The reason that I am asking is I just realized the LSB issue >> yesterday >> and now I am thinking that may be part of my problem where I have >> poor >> RTTY decode and ability to make weak contacts. Other digital modes >> like PSK and JT65 work just fine with the system. >> >> I am using the HRD suite of software with DM780 in case that matters. >> >> Otherwise everything works fine, so its more of an education issue >> for >> operator not a K3 problem. >> >> Cheers have a great weekend. >> >> Don >> >> ~73 >> Don >> KD8NNU >> ______________________________________________________________ >> 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 ______________________________________________________________ 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
