ADF
An ADF indicator whose yellow needle points to the NDB tuned in the simulator, parking at 90 degrees without a signal. The card turns with its HDG knob, locally on the iPad, as on a fixed-card-rotatable ADF.
- Modeled on
- KI 227-style ADF indicator
- Category
- Flight instruments
- Size
- 1 cell
- Version
- 1.0 · 2026-10-19
- Plan
- Pro
- Simulators
- MSFS 2020 · MSFS 2024 · X-Plane 11 · X-Plane 12
Features
- Yellow needle to the station (relative bearing)
- Needle parked at 90 degrees when there is no signal
- Rotatable compass card under an orange lubber line, 45-degree marks on the case
- Airplane symbol in the middle
- Red X when the ADF bearing is missing
- Night lighting: the face takes the panel's red flood light, the glareshield's warm light from above (stronger for instruments higher on the page) and its own light, a lamp hidden at the top of the case lighting the dial downward (Settings > Dimmers: Red flood light, Glareshield, Instruments (analog))
On the iPad
- Drag the HDG knob (lower left) to turn the card one degree a step (local only, nothing sent to the sim)
- Double tap the HDG knob to set the card to the current heading
- Tap elsewhere on the face to change the instrument
Keys and controllers
Map any of these to a key, a game controller's button or axis, or a MIDI knob (how):
- ADF +
- ADF -
- ADF 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 |
|---|---|---|
| ADF needle, relative bearing to the station (deg) | ADF RADIAL:1 (degrees) | sim/cockpit2/radios/indicators/adf1_relative_bearing_deg |
| ADF receiving a station (1/0) (bool) | ADF SIGNAL:1 (number) | sim/cockpit2/radios/actuators/adf1_frequency_hz |
| Heading (glass AHRS heading, else magnetic heading) (deg magnetic) | HEADING INDICATOR (degrees) | sim/cockpit2/gauges/indicators/heading_AHARS_deg_mag_pilotsim/flightmodel/position/mag_psi |
Sends
| When you… | MSFS | X-Plane |
|---|---|---|
| Mapped 'ADF +' / 'ADF -' only (standby frequency) | ADF_STBY_SET | sim/cockpit2/radios/actuators/adf1_standby_frequency_hz |
| Mapped 'ADF swap' only | ADF1_RADIO_SWAP | sim/radios/adf1_standy_flip |
Add-on aircraft with their own systems may use other variables; the Hub reads the standard ones.
Changes
The instrument's version counts what its faces share (the case, the mechanism, the data, the sounds); a face's own version counts that face alone.
- 1.0 2026-10-19
- First numbered version.
