I’m an RTTY noobie and I thought I’d try a few QSOs in CQWW RTTY. It was kinda fun.
I noticed that my K3’s DATA sub mode sometimes changed unexpectedly. This happened several times, and then it would be find for long periods.
N1MM+ version 1.0.7290
Windows 10 64-bit, 32 GB RAM, i7-6700K @ 4.01 GHz
K3 with KIO3B, USB A to USB B cable from PC to K3, combining radio control, using the sound card in the K3.
K3 MODE DATA, Data Mode AFSK A (at least that’s where I started). No intervening software.
K3 MCU 05.62
No port sharing
RTTY: MMTTY, AFSK, VOX (no PTT or FSK). VOX went off when the radio jumped from AFSK A to PSK D.
Mostly it worked OK. But sometimes the K3 changed data sub modes unexpectedly. I’d manually change it to AFSK A and watch it change right back to FSK D. I changed it a few times and then it would stick.
Is there an N1MM+ setting or MMTTY setting I’m missing? I expect this is a cockpit problem.
73 de Dick, K6KR