VHF/UHF Radio Control Panel
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VHF/UHF Radio Control Panel
Left console, midsection — directly below the Flight Control and Emergency Override panel.
Provides complete control of the aircraft’s VHF/UHF communications system (ARC-210).
Used to tune frequencies, select modes, transmit, receive, and manage encryption and channel presets.
Display Screen — Multifunction LCD showing frequency, channel, and mode information.
EMER, TOD SND, TOD RCV, GPS, RT SELECT Buttons — Soft-keys for emergency frequency, time-of-day transmission, GPS synchronization, and radio terminal selection.
OFF/ON/SQL Rotary Switch — Power and squelch control; “SQL” enables squelch circuit to suppress noise.
MENU / AM-FM / TIME / OFFSET / SEND / RCV Buttons — Access configuration menus, select modulation type, adjust clock and frequency offset, and control transmission and reception functions.
ENTER Key — Confirms data entry for frequencies or menu items.
VHF/UHF Selector Toggle — Two-position toggle to switch between VHF and UHF radio systems.
ADF / TR+G / ZERO (PULL) — Rotary selector for auxiliary direction finding and guard channel settings, with pull-to-zero function for quick reset.
CHG / PRST / TEST Rotary Knob — Controls channel mode: manual frequency input, preset recall, or built-in test.
CHANNEL Knob — Large central encoder or potentiometer used to select frequency or preset channel.
PRST / MAN / MAR / 243 Selector — Four-position rotary switch for preset mode, manual tuning, maritime channel, or guard frequency (243 MHz).
ECCM MASTER Knob (121 PULL) — Enables anti-jam (Electronic Counter-Countermeasures) features; pull for secure channel.
Display: 1 × 4"–5" TFT or OLED screen (if simulated).
Rotary selectors: 3 × 4-position rotary switches (OFF/ON/SQL, PRST/MAN/MAR/243, ECCM).
Encoders: 2 × rotary encoders for CHANNEL and ADF control.
Pushbuttons: 10 × momentary tactile buttons for mode and function keys.
Toggle: 1 × 2-position ON-ON for VHF/UHF selection.
3 mm matte black acrylic faceplate with engraved white legends.
Buttons should be 6–8 mm square tactile caps; rotary spacing 18–20 mm.
LCD recess depth: 2–3 mm flush to panel face.
Green LED backlighting behind all engraved text.
Amber LED optional behind “EMER” and “ECCM” labels for active states.
Notes This panel models the ARC-210 VHF/UHF transceiver, allowing secure and non-secure voice and data communication.
In DCS-BIOS, many functions are digital — the physical rotary encoders can be mapped to both frequency and preset inputs.
Ensure isolation between analog encoder grounds and button rows if shift registers are used.