ATR833-style COM

A compact COM radio for a 57 mm round hole in the look of a f.u.n.k.e. ATR833: gray LCD with dark blue text showing the active and standby frequencies and the station. COM 1 or COM 2.

Modeled on: f.u.n.k.e. (Funkwerk) ATR833-style 8.33 kHz 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 COM 1

Picker: RADIO > COM 1

COM 2v1.0

Tunes COM 2

Picker: RADIO > COM 2

Features

ACT frequency with RX / TX (TX while transmitting on it), SBY frequency, and the station name (or COM1 / COM2)
Three-decimal frequencies
The knob tunes the underlined part of the standby: MHz or kHz
Swap key (up/down arrows) exchanges active and standby
DW (dual watch) shows on the display only
Backlit LCD dimmed at night; dark without avionics power; the faceplate takes the red flood light and, when its dimmer is up, the glareshield's warm light (Settings > Dimmers > Glareshield, off by default)
Square black face with screws, round ring, three round keys above and below the LCD

On the iPad

Drag the bottom-right knob to tune the underlined part; tap it to switch between MHz and kHz
Tap the swap key to exchange active and standby
Tap DW to toggle the dual-watch indication

Settings

Which radio: COM 1 or COM 2 (picker variant)

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`
Text: station on COM1's active frequency (e.g. KSEA TWR) (text)	`COM ACTIVE FREQ IDENT:1COM ACTIVE FREQ TYPE:1`	Not available
Text: station on COM2's active frequency (text)	`COM ACTIVE FREQ IDENT:2COM ACTIVE FREQ TYPE:2`	Not available

Sends

When you…	MSFS	X-Plane
Knob in MHz; com1 + 1 knob in kHz; com1 + 2 swap key (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.