How To - Transmit/Receive audio for ATC (Audio Control Panel)?

[richboy2307]

The CALL/RECEIVE functionality of the Audio Control Panel(ACP) is used to control communications. VHF1 is used for com1, and VHF2 for com2.

To speak with the ATC, you need to select (press in) the appropriate transmission key (1). When pressed, the associated channel is selected for transmission and green lines display. The pilot can deselect the channel by pressing the push button again, or by selecting another channel.

To hear the ATC, you need to select (pull-out) the appropriate reception knob (2) and tune it's volume (rotate). You will see it lit up (white) when enabled.