To enter the transmit path operational settings mode, press the encoder RF
To exit the window, press the encoder RF again or press the buttons OK / X
At the bottom of the on-screen menu, you can select one of five input signal sources:
Each input has its own mnemonic button
The button 
controls enabling/disabling audio monitoring in transmit mode.
Switching to transmit mode and exiting it is performed by a short press of the PTT button
After entering PTT transmit mode, the button changes its color to red
Operational output power adjustment in transmit mode is performed using the RF encoder
Operational monitoring volume adjustment in transmit mode is performed using the AF encoder
In this mode, a dynamic power level control appears at the bottom of the display:
or a monitoring level control:
Switching to tone tuning mode is performed by a LONG press of the PTT button
The tone carrier frequency in this mode is 1 kHz
