AR6201-style COM

A 57 mm (2 1/4 in) COM radio in the style of the Becker AR6201, with its blue-on-white LCD showing the active over the preset. MDE switches between Standard, Direct Tune and Channel modes; STO stores channels; the swap key exchanges active and preset. Comes as COM 1 or COM 2.

Modeled on: Becker AR6201-style 57 mm COM
Category: Radios and panels
Size: 1 cell
Version: 1.0 · 2026-10-19
Plan: Pro
Simulators: MSFS 2020 · MSFS 2024 · X-Plane 11 · X-Plane 12

Variants

COM 1v1.0

Tunes and shows COM 1

Picker: RADIO > COM 1

COM 2v1.0

Tunes and shows COM 2

Picker: RADIO > COM 2

Features

Blue-white LCD: the active frequency large over the preset
TX while transmitting; a ► before the frequency heard, filled while receiving
Standard mode: the encoder edits the preset; a cursor underlines MHz, 100 kHz or the channel digits
Direct Tune: the encoder changes the active frequency directly; the battery voltage shown under it
Channel mode: CH01-99 stored channels or LAST1-9 recent ones, made active as you turn
STO: FREE / USED CHxx offered, STO again stores the preset there
8.33 / 25 kHz display (STO held); SQL and SCAN annunciators; Pilots and Intercom menus (display only)
Display dark without avionics power; dimmed at night, faceplate under the red flood light

On the iPad

Drag the encoder to turn the digits under the cursor (MHz, 100 kHz, channel); push it to move the cursor
Tap MDE to cycle Standard / Direct Tune / Channel; hold it for the Pilots menu (brightness, squelch)
Tap STO to offer a channel, turn to pick it, STO again to store; hold STO to toggle 8.33 / 25 kHz
Tap the swap / SCN key to swap active and preset; hold it for SCAN (display only)
Tap IC / SQL to toggle SQL; hold it for the Intercom menu

Settings

Which radio: COM 1 or COM 2 (picker variant)
In-unit menus (brightness, squelch, intercom volume / VOX) have no simulator effect

Keys and controllers

Map any of these to a key, a game controller's button or axis, or a MIDI knob (how):

COM 1 MHz +
COM 1 MHz -
COM 1 channel +
COM 1 channel -
COM 1 swap

Simulator data

What the Hub reads from the simulator for this instrument, and what the instrument sends back. Names are the simulators' own: MSFS SimVars and events, X-Plane datarefs and commands.

Reads

Value	MSFS	X-Plane
COM1 active frequency (kHz)	`COM ACTIVE FREQUENCY:1 (MHz)`	`sim/cockpit2/radios/actuators/com1_frequency_hz_833`
COM1 standby frequency (kHz)	`COM STANDBY FREQUENCY:1 (MHz)`	`sim/cockpit2/radios/actuators/com1_standby_frequency_hz_833`
COM2 active frequency (kHz)	`COM ACTIVE FREQUENCY:2 (MHz)`	`sim/cockpit2/radios/actuators/com2_frequency_hz_833`
COM2 standby frequency (kHz)	`COM STANDBY FREQUENCY:2 (MHz)`	`sim/cockpit2/radios/actuators/com2_standby_frequency_hz_833`
COM transmitting: 1, 2, 0 none (enum)	`COM TRANSMIT:1 (bool)COM TRANSMIT:2 (bool)`	`sim/cockpit2/radios/actuators/audio_com_selection`
COM1 heard (1/0) (bool)	`COM RECEIVE:1 (bool)`	`sim/cockpit2/radios/actuators/audio_selection_com1`
COM2 heard (1/0) (bool)	`COM RECEIVE:2 (bool)`	`sim/cockpit2/radios/actuators/audio_selection_com2`
Main bus voltage (V)	`ELECTRICAL MAIN BUS VOLTAGE (volts)`	`sim/cockpit2/electrical/bus_volts[0]`
Aircraft latitude (deg)	`PLANE LATITUDE (degrees)`	`sim/flightmodel/position/latitude`
Aircraft longitude (deg)	`PLANE LONGITUDE (degrees)`	`sim/flightmodel/position/longitude`

Sends

When you…	MSFS	X-Plane
Encoder in Standard mode (com1 MHz, com1 + 1 channels); swap key (com1 + 2); Direct Tune and Channel mode tune the standby then swap; com2 on COM 2	`COM_STBY_RADIO_SET_HZCOM_STBY_RADIO_SWAP`	`sim/cockpit2/radios/actuators/com1_standby_frequency_hz_833sim/radios/com1_standy_flip`

Add-on aircraft with their own systems may use other variables; the Hub reads the standard ones.