| # Options for PTT switching

RUMlog can activate the PTT fir TRX#1. Following functions can affect the PTT:

- General voice keyer (Preferernces–>Phone–>Playback over the radio)
- Voice keyer in the contest modul (Contest-Preferernces–>Phone–>Playback over the radio)
- FLdigi (Preferernces–>µHAM/Fldigi–>Fldigi)

To switch the PTT following options are available:

- CAT
- RTS line
- DTR line
- microHAM DKII or MKII

This selection can be found in Preferences–>TX1–>Transceiver