| Control / Indicator |
Function |
1. Receiver Switches
1 — VHF/FM ARC-114A
2 — UHF ARC-116 or ARC-164
3 — VHF/AM ARC-115
4 — Not Used
5 — Not Used
|
Connect (ON) or disconnect (OFF)
communications receivers from the headset
|
| 2. AUX Receiver Switch |
Connects (ON) or disconnects (OFF), VOR set receiver
ARN-123(V)1 from the headset. |
| 3. NAV Receiver Switch |
Connects (ON) or disconnects (OFF), ADF navigation receiver
ARN-898 from headset. |
| 4. HOT MIKE Switch |
Permits hand-free intercommunications with
transmit-interphone selector in the ICS position. |
| 5. VOL Control |
Adjusts volume from receivers.
Adjusts intercommunications volume |
6. Transmits-Interphone Selector
1 — VHF/FM ARC-114A
2 — UHF ARC-116 or ARC-164
3 — VHF/AM ARC-115
4 — Not Used
5 — Not Used
|
Selects transmitter to be keyed and connects microphone to
transmitters. |
ICS
|
Connects the microphones to the intercommunications system
only, disconnecting microphone from transmitters. |
