WB0TUA wrote: > I just bought a K3 a few weeks ago and have been using it on CW. It's time > to play \ > with it a bit on RTTY. I'm using the Tigetronics Signalink to interface the > radio to \ > my PC which is running MMTTY. When I have the mode switch in the sideband > position, \ > copy on the laptop is just fine and the signals display properly on the > tuning aids \ > in MMTTY. I read the manual pages about better performance if the DATA mode > is \ > selected. I switched to the DATA mode and there is very little audio in the > speaker \ > and no signals displayed on the tuning aids in MMTTY. No copy either. I \ > double-checked the data mode setting and it is AFSK-A which I think is > correct. I \ > must have a setting wrong somewhere. I've gone over the data section in the > manual a \ > few more times but don't see what I'm doing wrong. Any ideas?
Derek, I wouldn't have said that DATA modes give you better performance necessarily, but using AFSK A gives you the ability to use a number of RTTY-specific features on the K3 that are not available in SSB mode. In AFSK A, the default filter settings are much narrower than in LSB, so you don't have as much freedom to tune signals using an arbitrary audio frequency. Check that the PITCH setting on the K3 in AFSK A mode is consistent with the Mark setting in MMTTY, and that when you tune in a signal you tune such that the received audio mark tone lands on that audio frequency. To start with, I'd suggest that you turn MMTTY's AFC off, and use the K3's tuning knob to tune in signals - don't click with the mouse in the waterfall or let AFC tune to nearby signals. 73, Rich VE3KI ______________________________________________________________ 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
