According to information available when we added RTTY to the K3, the standard was LSB. So AFSK-A and FSK-D both use LSB. DATA-A and PSK-D both use USB.
This is not left to your imagination during operation, because "LSB" or "USB" is shown along with "DATA" in the mode icon area. (This applies to the K3, K3S, KX3, and KX2.) You can use DATA-REVERSE to flip the sideband. On an K3, K3S, or KX3, just hold the ALT switch, and you'll see "REV" appear above "DATA." On a KX2 use the ALT MD menu entry. In FSK-D mode on a K3/K3S you can also reverse the transmit logic polarity; see CONFIG:FSK POL. This would be used with MMTTY (etc.) when driving the FSK hardware input line, as opposed to internal FSK-D operation which uses the keyer paddle or an attached ASCII terminal, e.g. K3 Utility's terminal function. 73, Wayne N6KR > On Apr 2, 2019, at 5:16 PM, Bill Frantz <fra...@pwpconsult.com> wrote: > > Does using Reverse on the K3 make it easier to use the logging software spots? > > 73 Bill AE6JV > > On 4/2/19 at 4:11 PM, anyone1...@gmail.com (Gmail) wrote: > >> I recommend reading the FLDIGI manual. It states that USB is used for >> digital modes, including RTTY. The K3 uses USB for Data A and LSB for Data >> AFSK. >> In my first contest I was having problems getting reliable decoding and not >> many responses to my calls. I asked a friend who is an PVRC RTTY expert for >> help. He monitored my transmission and determined my signal was reversed. He >> said some operators would see that and change mode to answer me. Enabling Rv >> (reverse) on the lower FLDIGI control panel solved problem. However my >> logging software sends a mode command to radio when I select a spot and >> change frequency and it turns off Rv. A better solution is Data A mode which >> uses USB. >> There may be a way to change the FLDIGI RTTY default however I have not >> found it in the menus. Has anyone found it? >> Ray >> W8LYJ > --------------------------------------------------------------------------- > Bill Frantz | If you want total security, go to prison. There you're > 408-356-8506 | fed, clothed, given medical care and so on. The only > www.pwpconsult.com | thing lacking is freedom. - Dwight D. Eisenhower > > ______________________________________________________________ > 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
