I recently changed to using the direct modulator input of the radio for both audio and CTCSS. Formerly, the right channel had been CTCSS only - I just changed the config to: txmixb=composite Then to kill the signal on the left channel, I set txmixa=no With this setting, however, I found that I could not connect from my other node: app_rpt.c:20498 rpt_exec: Connect attempt to node 27021 with tx disabled or NOICE cop function active Setting txmixa=auxvoice got it working again The I figured I would just set Radio tune auxvoice = 0 (or 10 or something low) But it would not let me - it comes out to 700 no matter what value I enter. (So I unplugged that channel). Conclusion - possibly (?) two bugs : 1) Blocking a connection even though one transmit channel is open 2) No ability to adjust auxvoice level on right channel Version 255 Ken