# Aircraft Radio Navigation Events<no value>
The event IDs listed here are all related to the different radio navigation systems for aircraft.


### ADF

There can be up to two {{< glossterm >}}adf{{< /glossterm >}} available, however the exact number will depend on the [`Adf.N`](../../../content-configuration/cfg-files/systems.cfg/#Adf.N) parameter of the [systems.cfg](../../../content-configuration/cfg-files/systems.cfg/).


{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="ADF" />}}`ADF` | `KEY_ADF` | N/A | Sequentially selects the {{< glossterm >}}adf{{< /glossterm >}} tuner digits for use with +/-. Follow by `SELECT_1` for ADF 1, or `SELECT_2` for ADF 2. |
| {{< anchor id="ADF_CARD_DEC" />}}`ADF_CARD_DEC` | `KEY_ADF_CARD_INC` | N/A | Decrements the {{< glossterm >}}adf{{< /glossterm >}} card by 10° if the key is pressed more than 2 seconds, 4° if the key is pressed more than 1 second, or by 1° otherwise. The resulting value is clamped between 0° and 360°. |
| {{< anchor id="ADF_CARD_INC" />}}`ADF_CARD_INC` | `KEY_ADF_CARD_DEC` | N/A | Increments the {{< glossterm >}}adf{{< /glossterm >}} card by 10° if the key is pressed more than 2 seconds, 4° if the key is pressed more than 1 second, or by 1° otherwise. The resulting value is clamped between 0° and 360°. |
| {{< anchor id="ADF_CARD_SET" />}}`ADF_CARD_SET` | `KEY_ADF_CARD_SET` | [0]: Card value | Sets the {{< glossterm >}}adf{{< /glossterm >}} card. The resulting value is clamped between 0° and 360°. |
| {{< anchor id="ADF_1_DEC" />}}`ADF_1_DEC`<span></span>{{< anchor id="ADF2_1_DEC" />}}`ADF2_1_DEC` | `KEY_ADF_1_DEC`<span></span>`KEY_ADF2_1_DEC` | N/A | Decrements the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency by 1 KHz, with wrapping. |
| {{< anchor id="ADF_10_DEC" />}}`ADF_10_DEC`<span></span>{{< anchor id="ADF2_10_DEC" />}}`ADF2_10_DEC` | `KEY_ADF_10_DEC`<span></span>`KEY_ADF2_10_DEC` | N/A | Decrements the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency by 10 KHz, with wrapping. |
| {{< anchor id="ADF_100_DEC" />}}`ADF_100_DEC`<span></span>{{< anchor id="ADF2_100_DEC" />}}`ADF2_100_DEC` | `KEY_ADF_100_DEC`<span></span>`KEY_ADF2_100_DEC` | N/A | Decrements the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency by 100 KHz, with wrapping. |
| {{< anchor id="ADF_1_INC" />}}`ADF_1_INC`<span></span>{{< anchor id="ADF2_1_INC" />}}`ADF2_1_INC` | `KEY_ADF_1_INC`<span></span>`KEY_ADF2_1_INC` | N/A | Increments the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency by 1 KHz, with wrapping. |
| {{< anchor id="ADF_10_INC" />}}`ADF_10_INC`<span></span>{{< anchor id="ADF2_10_INC" />}}`ADF2_10_INC` | `KEY_ADF_10_INC`<span></span>`KEY_ADF2_10_INC` | N/A | Increments the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency by 10 KHz, with wrapping. |
| {{< anchor id="ADF_100_INC" />}}`ADF_100_INC`<span></span>{{< anchor id="ADF2_100_INC" />}}`ADF2_100_INC` | `KEY_ADF_100_INC`<span></span>`KEY_ADF2_100_INC` | N/A | Increments the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency by 100 KHz, with wrapping. |
| {{< anchor id="ADF_ACTIVE_SET" />}}`ADF_ACTIVE_SET`<span></span>{{< anchor id="ADF2_ACTIVE_SET" />}}`ADF2_ACTIVE_SET` | `KEY_ADF_ACTIVE_SET`<span></span>`KEY_ADF2_ACTIVE_SET` | [0]: Frequency value ([Frequency BCD32](../../simvars/simulation-variable-units/#Frequency-BCD32) encoded Hz) | Sets the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 active frequency ([Frequency BCD32](../../simvars/simulation-variable-units/#Frequency-BCD32) encoded Hz). |
| {{< anchor id="ADF_COMPLETE_SET" />}}`ADF_COMPLETE_SET`<span></span>{{< anchor id="ADF2_COMPLETE_SET" />}}`ADF2_COMPLETE_SET` | `KEY_ADF_COMPLETE_SET`<span></span>`KEY_ADF2_COMPLETE_SET` | [0]: Frequency value ([Frequency BCD32](../../simvars/simulation-variable-units/#Frequency-BCD32) encoded Hz) | Sets the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency ([Frequency BCD32](../../simvars/simulation-variable-units/#Frequency-BCD32) encoded Hz). |
| {{< anchor id="ADF_EXTENDED_SET" />}}`ADF_EXTENDED_SET`<span></span>{{< anchor id="ADF2_EXTENDED_SET" />}}`ADF2_EXTENDED_SET` | `KEY_ADF_EXTENDED_SET`<span></span>`KEY_ADF2_EXTENDED_SET` | [0]: Frequency value ([Frequency BCD32](../../simvars/simulation-variable-units/#Frequency-BCD32) encoded Hz) | Sets the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency (thousands and tenths, [Frequency BCD32](../../simvars/simulation-variable-units/#Frequency-BCD32) encoded HZ). |
| {{< anchor id="ADF_FRACT_DEC_CARRY" />}}`ADF_FRACT_DEC_CARRY`<span></span>{{< anchor id="ADF2_FRACT_DEC_CARRY" />}}`ADF2_FRACT_DEC_CARRY` | `KEY_ADF_FRACT_DEC_CARRY`<span></span>`KEY_ADF2_FRACT_DEC_CARRY` | N/A | Decrements the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency by 0.1 KHz, with carry. |
| {{< anchor id="ADF_FRACT_INC_CARRY" />}}`ADF_FRACT_INC_CARRY`<span></span>{{< anchor id="ADF2_FRACT_INC_CARRY" />}}`ADF2_FRACT_INC_CARRY` | `KEY_ADF_FRACT_INC_CARRY`<span></span>`KEY_ADF2_FRACT_INC_CARRY` | N/A | Increments the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency by 0.1 KHz, with carry. |
| {{< anchor id="ADF_HIGHRANGE_SET" />}}`ADF_HIGHRANGE_SET`<span></span>{{< anchor id="ADF2_HIGHRANGE_SET" />}}`ADF2_HIGHRANGE_SET` | `KEY_ADF_HIGHRANGE_SET`<span></span>`KEY_ADF2_HIGHRANGE_SET` | [0]: Frequency value ([Frequency BCD32](../../simvars/simulation-variable-units/#Frequency-BCD32) encoded Hz) | Sets the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 highrange frequency ([Frequency BCD32](../../simvars/simulation-variable-units/#Frequency-BCD32) encoded Hz). |
| {{< anchor id="ADF_LOWRANGE_SET" />}}`ADF_LOWRANGE_SET`<span></span>{{< anchor id="ADF2_LOWRANGE_SET" />}}`ADF2_LOWRANGE_SET` | `KEY_ADF_LOWRANGE_SET`<span></span>`KEY_ADF2_LOWRANGE_SET` | [0]: Frequency value ([Frequency BCD32](../../simvars/simulation-variable-units/#Frequency-BCD32) encoded Hz) | Sets the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 lowrange frequency ([Frequency BCD32](../../simvars/simulation-variable-units/#Frequency-BCD32) encoded Hz). |
| {{< anchor id="ADF_NEEDLE_SET" />}}`ADF_NEEDLE_SET`<span></span>{{< anchor id="ADF2_NEEDLE_SET" />}}`ADF2_NEEDLE_SET` | `KEY_ADF_NEEDLE_SET`<span></span>`KEY_ADF2_NEEDLE_SET` | [0]: Needle value | Sets the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 needle value, in radians.<span></span>Note that `ADF_OUTSIDE_SOURCE` / `ADF2_OUTSIDE_SOURCE` must be enabled. |
| {{< anchor id="ADF_OUTSIDE_SOURCE" />}}`ADF_OUTSIDE_SOURCE`<span></span>{{< anchor id="ADF2_OUTSIDE_SOURCE" />}}`ADF2_OUTSIDE_SOURCE` | `KEY_ADF_OUTSIDE_SOURCE`<span></span>`KEY_ADF2_OUTSIDE_SOURCE` | [0]: Bool | When TRUE sets {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 source to be outside, when FALSE it's not. This enables you to use the `ADF_NEEDLE_SET` / `ADF2_NEEDLE_SET` events to set the ADF needle instead of relying on the simulation source. |
| {{< anchor id="ADF1_RADIO_SWAP" />}}`ADF1_RADIO_SWAP`<span></span>{{< anchor id="ADF2_RADIO_SWAP" />}}`ADF2_RADIO_SWAP` | `KEY_ADF1_RADIO_SWAP`<span></span>`KEY_ADF2_RADIO_SWAP` | N/A | Swaps between the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency and the standby frequency. |
| {{< anchor id="ADF1_RADIO_TENTHS_DEC" />}}`ADF1_RADIO_TENTHS_DEC`<span></span>{{< anchor id="ADF2_RADIO_TENTHS_DEC" />}}`ADF2_RADIO_TENTHS_DEC` | `KEY_ADF1_RADIO_TENTHS_DEC`<span></span>`KEY_ADF2_RADIO_TENTHS_DEC` | N/A | Decrements the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency by 0.1 KHz. |
| {{< anchor id="ADF1_RADIO_TENTHS_INC" />}}`ADF1_RADIO_TENTHS_INC`<span></span>{{< anchor id="ADF2_RADIO_TENTHS_INC" />}}`ADF2_RADIO_TENTHS_INC` | `KEY_ADF1_RADIO_TENTHS_INC`<span></span>`KEY_ADF2_RADIO_TENTHS_INC` | N/A | Increments the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency by 0.1 KHz. |
| {{< anchor id="ADF_SET" />}}`ADF_SET`<span></span>{{< anchor id="ADF2_SET" />}}`ADF2_SET` | `KEY_ADF_SET`<span></span>`KEY_ADF2_SET` | [0]: Frequency value | Sets {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency ([Frequency BCD32](../../simvars/simulation-variable-units/#Frequency-BCD32) encoded Hz). |
| {{< anchor id="ADF_STBY_SET" />}}`ADF_STBY_SET`<span></span>{{< anchor id="ADF2_STBY_SET" />}}`ADF2_STBY_SET` | `KEY_ADF_STBY_SET`<span></span>`KEY_ADF2_STBY_SET` | [0]: Frequency value | Sets {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 standby frequency ([Frequency BCD32](../../simvars/simulation-variable-units/#Frequency-BCD32) encoded Hz). |
| {{< anchor id="ADF_VOLUME_INC" />}}`ADF_VOLUME_INC`<span></span>{{< anchor id="ADF2_VOLUME_INC" />}}`ADF2_VOLUME_INC` | `KEY_ADF_VOLUME_INC`<span></span>`KEY_ADF2_VOLUME_INC` | N/A | Increase {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 volume by 0.02. The resulting value will be clamped between 0 and 1. |
| {{< anchor id="ADF_VOLUME_DEC" />}}`ADF_VOLUME_DEC`<span></span>{{< anchor id="ADF2_VOLUME_DEC" />}}`ADF2_VOLUME_DEC` | `KEY_ADF_VOLUME_DEC`<span></span>`KEY_ADF2_VOLUME_DEC` | N/A | Decrease {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 volume by 0.02. The resulting value will be clamped between 0 and 1. |
| {{< anchor id="ADF_VOLUME_SET" />}}`ADF_VOLUME_SET`<span></span>{{< anchor id="ADF2_VOLUME_SET" />}}`ADF2_VOLUME_SET` | `KEY_ADF_VOLUME_SET`<span></span>`KEY_ADF2_VOLUME_SET` | [0]: Volume value | Sets {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 volume (from 0 to 100). |
| {{< anchor id="ADF1_WHOLE_DEC" />}}`ADF1_WHOLE_DEC`<span></span>{{< anchor id="ADF2_WHOLE_DEC" />}}`ADF2_WHOLE_DEC` | `KEY_ADF_WHOLE_DEC`<span></span>`KEY_ADF2_WHOLE_DEC` | N/A | Decrements the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency by 1 KHz, with carry as digits wrap. |
| {{< anchor id="ADF1_WHOLE_INC" />}}`ADF1_WHOLE_INC`<span></span>{{< anchor id="ADF2_WHOLE_INC" />}}`ADF2_WHOLE_INC` | `KEY_ADF_WHOLE_INC`<span></span>`KEY_ADF2_WHOLE_INC` | N/A | Increments the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 frequency by 1 KHz, with carry as digits wrap. |
| {{< anchor id="RADIO_ADF_IDENT_DISABLE" />}}`RADIO_ADF_IDENT_DISABLE`<span></span>{{< anchor id="RADIO_ADF2_IDENT_DISABLE" />}}`RADIO_ADF2_IDENT_DISABLE` | `KEY_RADIO_ADF_IDENT_DISABLE`<span></span>`KEY_RADIO_ADF2_IDENT_DISABLE` | N/A | Turns the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 ID off. |
| {{< anchor id="RADIO_ADF_IDENT_ENABLE" />}}`RADIO_ADF_IDENT_ENABLE`<span></span>{{< anchor id="RADIO_ADF2_IDENT_ENABLE" />}}`RADIO_ADF2_IDENT_ENABLE` | `KEY_RADIO_ADF_IDENT_ENABLE`<span></span>`KEY_RADIO_ADF2_IDENT_ENABLE` | N/A | Turns the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 ID on. |
| {{< anchor id="RADIO_ADF_IDENT_SET" />}}`RADIO_ADF_IDENT_SET`<span></span>{{< anchor id="RADIO_ADF2_IDENT_SET" />}}`RADIO_ADF2_IDENT_SET` | `KEY_RADIO_ADF_IDENT_SET`<span></span>`KEY_RADIO_ADF2_IDENT_SET` | [0]: True/False (1, 0) | Sets the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 ID on (1) or off (0). |
| {{< anchor id="RADIO_ADF_IDENT_TOGGLE" />}}`RADIO_ADF_IDENT_TOGGLE`<span></span>{{< anchor id="RADIO_ADF2_IDENT_TOGGLE" />}}`RADIO_ADF2_IDENT_TOGGLE` | `KEY_RADIO_ADF_IDENT_TOGGLE`<span></span>`KEY_RADIO_ADF2_IDENT_TOGGLE` | N/A | Toggles the {{< glossterm >}}adf{{< /glossterm >}} 1 / 2 ID between on (1) and off (0). |

{{< /table-wrapper >}}


### Avionics

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| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="AVIONICS_MASTER_SET" />}}`AVIONICS_MASTER_SET` | `KEY_AVIONICS_MASTER_SET` | [0]: Bool | Sets the avionics master switch to on or off. |
| {{< anchor id="TOGGLE_AVIONICS_MASTER" />}}`TOGGLE_AVIONICS_MASTER` | `KEY_TOGGLE_AVIONICS_MASTER` | N/A | Toggles the avionics master switch |
| {{< anchor id="AVIONICS_MASTER_1_ON" />}}`AVIONICS_MASTER_1_ON`<span></span>{{< anchor id="AVIONICS_MASTER_2_ON" />}}`AVIONICS_MASTER_2_ON` | `KEY_AVIONICS_MASTER_1_ON`<span></span>`KEY_AVIONICS_MASTER_2_ON` | N/A | Sets avionics master 1 / 2 switch to on (1). |
| {{< anchor id="AVIONICS_MASTER_1_OFF" />}}`AVIONICS_MASTER_1_OFF`<span></span>{{< anchor id="AVIONICS_MASTER_2_OFF" />}}`AVIONICS_MASTER_2_OFF` | `KEY_AVIONICS_MASTER_1_OFF`<span></span>`KEY_AVIONICS_MASTER_2_OFF` | N/A | Sets avionics master 1 / 2 switch to off (0). |
| {{< anchor id="AVIONICS_MASTER_1_SET" />}}`AVIONICS_MASTER_1_SET`<span></span>{{< anchor id="AVIONICS_MASTER_2_SET" />}}`AVIONICS_MASTER_2_SET` | `KEY_AVIONICS_MASTER_1_SET`<span></span>`KEY_AVIONICS_MASTER_2_SET` | [0]: Bool | Sets avionics master 1 / 2 switch to on (1) or off (0). |

{{< /table-wrapper >}}


### COM

There can be up to three COM available, however the exact number will depend on the [`Com.N`](../../../content-configuration/cfg-files/systems.cfg/#Com.N) parameter of the [systems.cfg](../../../content-configuration/cfg-files/systems.cfg/).


{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="COM_RADIO" />}}`COM_RADIO` | `KEY_COM_RADIO` | N/A | Sequentially selects the COM tuner digits for use with +/-. Follow by `SELECT_2` for COM 2 or `SELECT_3` for COM 3. |
| {{< anchor id="COM_RADIO_FRACT_DEC" />}}`COM_RADIO_FRACT_DEC`<span></span>{{< anchor id="COM2_RADIO_FRACT_DEC" />}}`COM2_RADIO_FRACT_DEC`<span></span>{{< anchor id="COM3_RADIO_FRACT_DEC" />}}`COM3_RADIO_FRACT_DEC` | `KEY_COM_RADIO_FRACT_DEC`<span></span>`KEY_COM2_RADIO_FRACT_DEC`<span></span>`KEY_COM3_RADIO_FRACT_DEC` | N/A | Decrements COM 1/2/3 frequency by 25 KHz, with no carry when digit wraps |
| {{< anchor id="COM_RADIO_FRACT_DEC_CARRY" />}}`COM_RADIO_FRACT_DEC_CARRY`<span></span>{{< anchor id="COM2_RADIO_FRACT_DEC_CARRY" />}}`COM2_RADIO_FRACT_DEC_CARRY`<span></span>{{< anchor id="COM3_RADIO_FRACT_DEC_CARRY" />}}`COM3_RADIO_FRACT_DEC_CARRY` | `KEY_COM_RADIO_FRACT_DEC_CARRY`<span></span>`KEY_COM2_RADIO_FRACT_DEC_CARRY`<span></span>`KEY_COM3_RADIO_FRACT_DEC_CARRY` | N/A | Decrement COM 1/2/3 frequency by 25 KHz, and carry when digit wraps |
| {{< anchor id="COM_RADIO_FRACT_INC" />}}`COM_RADIO_FRACT_INC`<span></span>{{< anchor id="COM2_RADIO_FRACT_INC" />}}`COM2_RADIO_FRACT_INC`<span></span>{{< anchor id="COM3_RADIO_FRACT_INC" />}}`COM3_RADIO_FRACT_INC` | `KEY_COM_RADIO_FRACT_INC`<span></span>`KEY_COM2_RADIO_FRACT_INC`<span></span>`KEY_COM3_RADIO_FRACT_INC` | N/A | Increment COM 1/2/3 frequency by 25 KHz, with no carry when digit wraps |
| {{< anchor id="COM_RADIO_FRACT_INC_CARRY" />}}`COM_RADIO_FRACT_INC_CARRY`<span></span>{{< anchor id="COM2_RADIO_FRACT_INC_CARRY" />}}`COM2_RADIO_FRACT_INC_CARRY`<span></span>{{< anchor id="COM3_RADIO_FRACT_INC_CARRY" />}}`COM3_RADIO_FRACT_INC_CARRY` | `KEY_COM_RADIO_FRACT_INC_CARRY`<span></span>`KEY_COM2_RADIO_FRACT_INC_CARRY`<span></span>`KEY_COM3_RADIO_FRACT_INC_CARRY` | N/A | Increment COM 1/2/3 frequency by 25 KHz, and carry when digit wraps |
| {{< anchor id="COM_RADIO_SET" />}}`COM_RADIO_SET`<span></span>{{< anchor id="COM2_RADIO_SET" />}}`COM2_RADIO_SET`<span></span>{{< anchor id="COM3_RADIO_SET" />}}`COM3_RADIO_SET` | `KEY_COM_RADIO_SET`<span></span>`KEY_COM2_RADIO_SET`<span></span>`KEY_COM3_RADIO_SET` | [0]: Frequency value ([Frequency BCD16](../../simvars/simulation-variable-units/#Frequency-BCD16) encoded Hz) | Sets COM 1/2/3 frequency as a BCD16 encoded value. |
| {{< anchor id="COM_RADIO_SET_HZ" />}}`COM_RADIO_SET_HZ`<span></span>{{< anchor id="COM2_RADIO_SET_HZ" />}}`COM2_RADIO_SET_HZ`<span></span>{{< anchor id="COM3_RADIO_SET_HZ" />}}`COM3_RADIO_SET_HZ` | `KEY_COM_RADIO_SET_HZ`<span></span>`KEY_COM2_RADIO_SET_HZ`<span></span>`KEY_COM3_RADIO_SET_HZ` | [0]: Frequency value (Hz) | Sets COM 1/2/3 frequency as Hz. |
| {{< anchor id="COM_STBY_RADIO_SET" />}}`COM_STBY_RADIO_SET`<span></span>{{< anchor id="COM2_STBY_RADIO_SET" />}}`COM2_STBY_RADIO_SET`<span></span>{{< anchor id="COM3_STBY_RADIO_SET" />}}`COM3_STBY_RADIO_SET` | `KEY_COM_STBY_RADIO_SET`<span></span>`KEY_COM2_STBY_RADIO_SET`<span></span>`KEY_COM3_STBY_RADIO_SET` | [0]: Frequency value ([Frequency BCD16](../../simvars/simulation-variable-units/#Frequency-BCD16) encoded Hz) | Sets COM 1/2/3 standby frequency as a BCD16 encoded value. |
| {{< anchor id="COM_STBY_RADIO_SET_HZ" />}}`COM_STBY_RADIO_SET_HZ`<span></span>{{< anchor id="COM2_STBY_RADIO_SET_HZ" />}}`COM2_STBY_RADIO_SET_HZ`<span></span>{{< anchor id="COM3_STBY_RADIO_SET_HZ" />}}`COM3_STBY_RADIO_SET_HZ` | `KEY_COM_STBY_RADIO_SET_HZ`<span></span>`KEY_COM2_STBY_RADIO_SET_HZ`<span></span>`KEY_COM3_STBY_RADIO_SET_HZ` | [0]: Frequency value (Hz) | Sets COM 1/2/3 standby frequency in Hz. |
| {{< anchor id="COM_STBY_RADIO_SWAP" />}}`COM_STBY_RADIO_SWAP` | `KEY_COM_STBY_RADIO_SWITCH_TO` | N/A | Swaps COM 1 frequency with standby. |
| {{< anchor id="COM_RADIO_WHOLE_DEC" />}}`COM_RADIO_WHOLE_DEC`<span></span>{{< anchor id="COM2_RADIO_WHOLE_DEC" />}}`COM2_RADIO_WHOLE_DEC`<span></span>{{< anchor id="COM3_RADIO_WHOLE_DEC" />}}`COM3_RADIO_WHOLE_DEC` | `KEY_COM_RADIO_WHOLE_DEC`<span></span>`KEY_COM2_RADIO_WHOLE_DEC`<span></span>`KEY_COM3_RADIO_WHOLE_DEC` | N/A | Decrement COM 1/2/3 frequency by 1 MHz. Values from 118 to 137, and this will wrap if the values go over 137. |
| {{< anchor id="COM_RADIO_WHOLE_INC" />}}`COM_RADIO_WHOLE_INC`<span></span>{{< anchor id="COM2_RADIO_WHOLE_INC" />}}`COM2_RADIO_WHOLE_INC`<span></span>{{< anchor id="COM3_RADIO_WHOLE_INC" />}}`COM3_RADIO_WHOLE_INC` | `KEY_COM_RADIO_WHOLE_INC`<span></span>`KEY_COM2_RADIO_WHOLE_INC`<span></span>`KEY_COM3_RADIO_WHOLE_INC` | N/A | Increment COM 1/2/3 frequency by 1 MHz. Values are from 118 to 137, and this will wrap if the values go under 118. |
| {{< anchor id="COM_RADIO_SWAP" />}}`COM_RADIO_SWAP`<span></span>{{< anchor id="COM1_RADIO_SWAP" />}}`COM1_RADIO_SWAP`<span></span>{{< anchor id="COM2_RADIO_SWAP" />}}`COM2_RADIO_SWAP`<span></span>{{< anchor id="COM3_RADIO_SWAP" />}}`COM3_RADIO_SWAP` | `KEY_COM_RADIO_SWAP`<span></span>`KEY_COM1_RADIO_SWAP`<span></span>`KEY_COM2_RADIO_SWAP`<span></span>`KEY_COM3_RADIO_SWAP` | N/A | Swaps COM 1/2/3 frequency with the standby frequency.<span></span>NOTE: `COM_RADIO_SWAP` is simply an alias for `COM1_RADIO_SWAP` |
| {{< anchor id="COM1_RECEIVE_SELECT" />}}`COM1_RECEIVE_SELECT`<span></span>{{< anchor id="COM2_RECEIVE_SELECT" />}}`COM2_RECEIVE_SELECT`<span></span>{{< anchor id="COM3_RECEIVE_SELECT" />}}`COM3_RECEIVE_SELECT` | `KEY_COM1_RECEIVE_SELECT`<span></span>`KEY_COM2_RECEIVE_SELECT`<span></span>`KEY_COM3_RECEIVE_SELECT` | [0] Bool | Sets receive on (1) or off (0) for COM 1/2/3. |
| {{< anchor id="COM_1_SPACING_MODE_SWITCH" />}}`COM_1_SPACING_MODE_SWITCH`<span></span>{{< anchor id="COM_2_SPACING_MODE_SWITCH" />}}`COM_2_SPACING_MODE_SWITCH`<span></span>{{< anchor id="COM_3_SPACING_MODE_SWITCH" />}}`COM_3_SPACING_MODE_SWITCH` | `KEY_COM_1_SPACING_MODE_SWITCH`<span></span>`KEY_COM_2_SPACING_MODE_SWITCH`<span></span>`KEY_COM_3_SPACING_MODE_SWITCH` | N/A | Toggle between the different modes for COM 1/2/3. |
| {{< anchor id="COM1_STORED_FREQUENCY_SET" />}}`COM1_STORED_FREQUENCY_SET`<span></span>{{< anchor id="COM2_STORED_FREQUENCY_SET" />}}`COM2_STORED_FREQUENCY_SET`<span></span>{{< anchor id="COM3_STORED_FREQUENCY_SET" />}}`COM3_STORED_FREQUENCY_SET` | `KEY_COM1_STORED_FREQUENCY_SET`<span></span>`KEY_COM2_STORED_FREQUENCY_SET`<span></span>`KEY_COM3_STORED_FREQUENCY_SET` | [0]: Frequency value ([Frequency BCD16](../../simvars/simulation-variable-units/#Frequency-BCD16) or [Frequency BCD32](../../simvars/simulation-variable-units/#Frequency-BCD32) encoded Hz) | Sets the COM 1/2/3 stored frequency as a BCD encoded value. |
| {{< anchor id="COM1_STORED_FREQUENCY_SET_HZ" />}}`COM1_STORED_FREQUENCY_SET_HZ`<span></span>{{< anchor id="COM2_STORED_FREQUENCY_SET_HZ" />}}`COM2_STORED_FREQUENCY_SET_HZ`<span></span>{{< anchor id="COM3_STORED_FREQUENCY_SET_HZ" />}}`COM3_STORED_FREQUENCY_SET_HZ` | `KEY_COM1_STORED_FREQUENCY_SET_HZ`<span></span>`KEY_COM2_STORED_FREQUENCY_SET_HZ`<span></span>`KEY_COM3_STORED_FREQUENCY_SET_HZ` | [0]: Frequency value (Hz) | Sets COM 1/2/3 stored frequency as Hz. |
| {{< anchor id="COM1_STORED_FREQUENCY_INDEX_SET" />}}`COM1_STORED_FREQUENCY_INDEX_SET`<span></span>{{< anchor id="COM2_STORED_FREQUENCY_INDEX_SET" />}}`COM2_STORED_FREQUENCY_INDEX_SET`<span></span>{{< anchor id="COM3_STORED_FREQUENCY_INDEX_SET" />}}`COM3_STORED_FREQUENCY_INDEX_SET` | `KEY_COM1_STORED_FREQUENCY_INDEX_SET`<span></span>`KEY_COM2_STORED_FREQUENCY_INDEX_SET`<span></span>`KEY_COM3_STORED_FREQUENCY_INDEX_SET` | N/A | This is used to select the index for when you want to store frequencies. This can be done by including this event when you store a frequency using one of the 2 available types: [`COM1_STORED_FREQUENCY_SET`](#COM1_STORED_FREQUENCY_SET), [`COM1_STORED_FREQUENCY_SET_HZ`](#COM1_STORED_FREQUENCY_SET_HZ).<span></span>For example if you want to store a Com1 frequency HZ to an index of 2 then you would do this:<span></span>```2 (>K:COM1_STORED_FREQUENCY_INDEX_SET) 112 (>K:COM1_STORED_FREQUENCY_SET_HZ)```<span></span>After you save it you can retrieve this value from the 3 types of variables as seen here:<span></span>```(A:COM1 STORED FREQUENCY:2, Hz) (A:COM1 STORED FREQUENCY:2, FrequencyBCD16) (A:COM1 STORED FREQUENCY:2, FrequencyBCD32)``` |
| {{< anchor id="COM1_TRANSMIT_SELECT" />}}<span class="legacy">`COM1_TRANSMIT_SELECT`</span><span></span>{{< anchor id="COM2_TRANSMIT_SELECT" />}}<span class="legacy">`COM2_TRANSMIT_SELECT`</span> | `KEY_COM1_TRANSMIT_SELECT`<span></span>`KEY_COM2_TRANSMIT_SELECT` |  | Selects COM 1/2 to transmit<span></span>See [`PILOT_TRANSMITTER_SET`](#PILOT_TRANSMITTER_SET) instead. |
| {{< anchor id="COM1_VOLUME_SET" />}}`COM1_VOLUME_SET`<span></span>{{< anchor id="COM2_VOLUME_SET" />}}`COM2_VOLUME_SET`<span></span>{{< anchor id="COM3_VOLUME_SET" />}}`COM3_VOLUME_SET` | `KEY_COM1_VOLUME_SET`<span></span>`KEY_COM2_VOLUME_SET`<span></span>`KEY_COM3_VOLUME_SET` | [0]: Volume (0 - 100) | Sets the COM 1/2/3 volume (from 0 to 100). |
| {{< anchor id="COM1_VOLUME_INC" />}}`COM1_VOLUME_INC`<span></span>{{< anchor id="COM2_VOLUME_INC" />}}`COM2_VOLUME_INC`<span></span>{{< anchor id="COM3_VOLUME_INC" />}}`COM3_VOLUME_INC` | `KEY_COM1_VOLUME_INC`<span></span>`KEY_COM2_VOLUME_INC`<span></span>`KEY_COM3_VOLUME_INC` | N/A | Increases the COM 1/2/3 volume by 0.02, and the resulting value will be clamped between 0 and 1. |
| {{< anchor id="COM1_VOLUME_DEC" />}}`COM1_VOLUME_DEC`<span></span>{{< anchor id="COM2_VOLUME_DEC" />}}`COM2_VOLUME_DEC`<span></span>{{< anchor id="COM3_VOLUME_DEC" />}}`COM3_VOLUME_DEC` | `KEY_COM1_VOLUME_DEC`<span></span>`KEY_COM2_VOLUME_DEC`<span></span>`KEY_COM3_VOLUME_DEC` | N/A | Decreases the COM 1/2/3 volume by 0.02, and the resulting value will be clamped between 0 and 1. |
| {{< anchor id="COM_RECEIVE_ALL_SET" />}}`COM_RECEIVE_ALL_SET` | `KEY_COM_RECEIVE_ALL_SET` | [0] Bool | Sets whether to receive on all COM radios (1, 0) |
| {{< anchor id="COM_RECEIVE_ALL_TOGGLE" />}}`COM_RECEIVE_ALL_TOGGLE` | `KEY_COM_RECEIVE_ALL_TOGGLE` | N/A | Toggles receive on (1) or off (0) for all COM radios. |
| {{< anchor id="RADIO_COMMNAV1_TEST_TOGGLE" />}}`RADIO_COMMNAV1_TEST_TOGGLE`<span></span>{{< anchor id="RADIO_COMMNAV2_TEST_TOGGLE" />}}`RADIO_COMMNAV2_TEST_TOGGLE`<span></span>{{< anchor id="RADIO_COMMNAV3_TEST_TOGGLE" />}}`RADIO_COMMNAV3_TEST_TOGGLE` | `KEY_RADIO_COMMNAV1_TEST_TOGGLE`<span></span>`KEY_RADIO_COMMNAV2_TEST_TOGGLE`<span></span>`KEY_RADIO_COMMNAV3_TEST_TOGGLE` | N/A | Places COM 1/2/3 in "test mode".<span></span>**NOTE**: Currently, placing COMs in test mode will have no effect other than to set the SimVar [`COM TEST`](../../simvars/aircraft-simvars/aircraft-radio-navigation-variables/#COM-TEST). |
| {{< anchor id="RADIO_COMM1_AUTOSWITCH_TOGGLE" />}}`RADIO_COMM1_AUTOSWITCH_TOGGLE`<span></span>{{< anchor id="RADIO_COMM2_AUTOSWITCH_TOGGLE" />}}`RADIO_COMM2_AUTOSWITCH_TOGGLE` | `KEY_RADIO_COMM1_AUTOSWITCH_TOGGLE`<span></span>`KEY_RADIO_COMM2_AUTOSWITCH_TOGGLE` | N/A | Toggles the COM 1/2 autoswitch on (1) or off (0). |

{{< /table-wrapper >}}


### DME

{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="DME" />}}`DME` | `KEY_DME` | N/A | Selects the {{< glossterm >}}dme{{< /glossterm >}} for use with +/- |
| {{< anchor id="DME_SELECT" />}}`DME_SELECT` | `KEY_DME_SELECT` | [0]: DME ID | Selects one of the two {{< glossterm >}}dme{{< /glossterm >}} systems (1, 2). |
| {{< anchor id="TOGGLE_DME" />}}`TOGGLE_DME` | `KEY_DME_TOGGLE` | N/A | Toggles {{< glossterm >}}dme{{< /glossterm >}} between NAV 1 and NAV 2. |
| {{< anchor id="DME1_TOGGLE" />}}`DME1_TOGGLE`<span></span>{{< anchor id="DME2_TOGGLE" />}}`DME2_TOGGLE` | `KEY_DME1_TOGGLE`<span></span>`KEY_DME2_TOGGLE` | N/A | Sets the {{< glossterm >}}dme{{< /glossterm >}} 1 / 2 display to NAV 1 / 2. |
| {{< anchor id="RADIO_DME1_IDENT_DISABLE" />}}`RADIO_DME1_IDENT_DISABLE`<span></span>{{< anchor id="RADIO_DME2_IDENT_DISABLE" />}}`RADIO_DME2_IDENT_DISABLE` | `KEY_RADIO_DME1_IDENT_DISABLE`<span></span>`KEY_RADIO_DME2_IDENT_DISABLE` | N/A | Turns the {{< glossterm >}}dme{{< /glossterm >}} 1 / 2 ID off (0). |
| {{< anchor id="RADIO_DME1_IDENT_ENABLE" />}}`RADIO_DME1_IDENT_ENABLE`<span></span>{{< anchor id="RADIO_DME2_IDENT_ENABLE" />}}`RADIO_DME2_IDENT_ENABLE` | `KEY_RADIO_DME1_IDENT_ENABLE`<span></span>`KEY_RADIO_DME2_IDENT_ENABLE` | N/A | Turns the {{< glossterm >}}dme{{< /glossterm >}} 1 / 2 ID on (1). |
| {{< anchor id="RADIO_DME1_IDENT_SET" />}}`RADIO_DME1_IDENT_SET`<span></span>{{< anchor id="RADIO_DME2_IDENT_SET" />}}`RADIO_DME2_IDENT_SET` | `KEY_RADIO_DME1_IDENT_SET`<span></span>`KEY_RADIO_DME2_IDENT_SET` | [0]: Bool | Sets the {{< glossterm >}}dme{{< /glossterm >}} 1 /2 ID to on (1) or off (0). |
| {{< anchor id="RADIO_DME1_IDENT_TOGGLE" />}}`RADIO_DME1_IDENT_TOGGLE`<span></span>{{< anchor id="RADIO_DME2_IDENT_TOGGLE" />}}`RADIO_DME2_IDENT_TOGGLE` | `KEY_RADIO_DME1_IDENT_TOGGLE`<span></span>`KEY_RADIO_DME2_IDENT_TOGGLE` | N/A | Toggles the {{< glossterm >}}dme{{< /glossterm >}} 1 / 2 ID between on (1) and off (0). |
| {{< anchor id="RADIO_SELECTED_DME_IDENT_ENABLE" />}}`RADIO_SELECTED_DME_IDENT_ENABLE` | `KEY_RADIO_SELECTED_DME_IDENT_ENABLE` | N/A | Turns on the identification sound for the selected {{< glossterm >}}dme{{< /glossterm >}}. |
| {{< anchor id="RADIO_SELECTED_DME_IDENT_DISABLE" />}}`RADIO_SELECTED_DME_IDENT_DISABLE` | `KEY_RADIO_SELECTED_DME_IDENT_DISABLE` | N/A | Turns off the identification sound for the selected {{< glossterm >}}dme{{< /glossterm >}}. |
| {{< anchor id="RADIO_SELECTED_DME_IDENT_SET" />}}`RADIO_SELECTED_DME_IDENT_SET` | `KEY_RADIO_SELECTED_DME_IDENT_SET` | [0]: Bool | Sets the {{< glossterm >}}dme{{< /glossterm >}} identification sound to the given filename. |
| {{< anchor id="RADIO_SELECTED_DME_IDENT_TOGGLE" />}}`RADIO_SELECTED_DME_IDENT_TOGGLE` | `KEY_RADIO_SELECTED_DME_IDENT_TOGGLE` | N/A | Turns on or off the identification sound for the selected {{< glossterm >}}dme{{< /glossterm >}}. |

{{< /table-wrapper >}}


### ELT

{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="ELT_OFF" />}}`ELT_OFF` | `KEY_ELT_OFF` | N/A | Switches the {{< glossterm >}}elt{{< /glossterm >}} off (0). |
| {{< anchor id="ELT_ON" />}}`ELT_ON` | `KEY_ELT_ON` | N/A | Switches the {{< glossterm >}}elt{{< /glossterm >}} on (1). |
| {{< anchor id="ELT_SET" />}}`ELT_SET` | `KEY_ELT_SET` | [0]: Bool | Sets the {{< glossterm >}}elt{{< /glossterm >}} on (1) or off (0). |
| {{< anchor id="ELT_TOGGLE" />}}`ELT_TOGGLE` | `KEY_ELT_TOGGLE` | N/A | Toggles the {{< glossterm >}}elt{{< /glossterm >}} between on (1) and off (0). |

{{< /table-wrapper >}}


### GPS

{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="GPS_ACTIVATE_BUTTON" />}}`GPS_ACTIVATE_BUTTON` | `KEY_GPS_ACTIVATE_BUTTON` | N/A | Press GPS Activate button. |
| {{< anchor id="GPS_BUTTON1" />}}`GPS_BUTTON1` | `KEY_GPS_BUTTON1` | N/A | Press GPS Button 1. |
| {{< anchor id="GPS_BUTTON2" />}}`GPS_BUTTON2` | `KEY_GPS_BUTTON2` | N/A | Press GPS Button 2. |
| {{< anchor id="GPS_BUTTON3" />}}`GPS_BUTTON3` | `KEY_GPS_BUTTON3` | N/A | Press GPS Button 3. |
| {{< anchor id="GPS_BUTTON4" />}}`GPS_BUTTON4` | `KEY_GPS_BUTTON4` | N/A | Press GPS Button 4. |
| {{< anchor id="GPS_BUTTON5" />}}`GPS_BUTTON5` | `KEY_GPS_BUTTON5` | N/A | Press GPS Button 5. |
| {{< anchor id="GPS_CLEAR_BUTTON" />}}`GPS_CLEAR_BUTTON` | `KEY_GPS_CLEAR_BUTTON` | N/A | Press GPS Clear button (clears entered data on a page). |
| {{< anchor id="GPS_CLEAR_ALL_BUTTON" />}}`GPS_CLEAR_ALL_BUTTON` | `KEY_GPS_CLEAR_ALL_BUTTON` | N/A | Press GPS Clear All button (clears all data immediately). |
| {{< anchor id="GPS_CLEAR_BUTTON_DOWN" />}}`GPS_CLEAR_BUTTON_DOWN` | `KEY_GPS_CLEAR_BUTTON_DOWN` | N/A | Triggers the pressing of the Clear button. |
| {{< anchor id="GPS_CLEAR_BUTTON_UP" />}}`GPS_CLEAR_BUTTON_UP` | `KEY_GPS_CLEAR_BUTTON_UP` | N/A | Triggers the release of the Clear button. |
| {{< anchor id="GPS_CURSOR_BUTTON" />}}`GPS_CURSOR_BUTTON` | `KEY_GPS_CURSOR_BUTTON` | N/A | Selects GPS cursor |
| {{< anchor id="GPS_DIRECTTO_BUTTON" />}}`GPS_DIRECTTO_BUTTON` | `KEY_GPS_DIRECTTO_BUTTON` | N/A | Brings up the "Direct To" page |
| {{< anchor id="GPS_ENTER_BUTTON" />}}`GPS_ENTER_BUTTON` | `KEY_GPS_ENTER_BUTTON` | N/A | Approves entered data. |
| {{< anchor id="GPS_FLIGHTPLAN_BUTTON" />}}`GPS_FLIGHTPLAN_BUTTON` | `KEY_GPS_FLIGHTPLAN_BUTTON` | N/A | Displays the programmed flightplan. |
| {{< anchor id="GPS_GROUP_KNOB_INC" />}}`GPS_GROUP_KNOB_INC` | `KEY_GPS_GROUP_KNOB_INC` | N/A | Increase GPS Group. |
| {{< anchor id="GPS_GROUP_KNOB_DEC" />}}`GPS_GROUP_KNOB_DEC` | `KEY_GPS_GROUP_KNOB_DEC` | N/A | Decrease GPS Group. |
| {{< anchor id="GPS_MENU_BUTTON" />}}`GPS_MENU_BUTTON` | `KEY_GPS_MENU_BUTTON` | N/A | Brings up page to select active legs in a flightplan. |
| {{< anchor id="GPS_MSG_BUTTON" />}}`GPS_MSG_BUTTON` | `KEY_GPS_MSG_BUTTON` | N/A | Toggles the Message Page. |
| {{< anchor id="GPS_MSG_BUTTON_DOWN" />}}`GPS_MSG_BUTTON_DOWN` | `KEY_GPS_MSG_BUTTON_DOWN` | N/A | Triggers the pressing of the message button. |
| {{< anchor id="GPS_MSG_BUTTON_UP" />}}`GPS_MSG_BUTTON_UP` | `KEY_GPS_MSG_BUTTON_UP` | N/A | Triggers the release of the message button. |
| {{< anchor id="GPS_NEAREST_BUTTON" />}}`GPS_NEAREST_BUTTON` | `KEY_GPS_NEAREST_BUTTON` | N/A | Selects Nearest Airport Page. |
| {{< anchor id="GPS_OBS" />}}`GPS_OBS` | `KEY_GPS_OBS` | N/A | Toggle GPS OBS mode active status on/off. |
| {{< anchor id="GPS_OBS_BUTTON" />}}`GPS_OBS_BUTTON` | `KEY_GPS_OBS_BUTTON` | N/A | Toggles automatic sequencing of waypoints. |
| {{< anchor id="GPS_OBS_DEC" />}}`GPS_OBS_DEC` | `KEY_GPS_OBS_DEC` | N/A | Decreases GPS OBS value by 1 degree (if the value goes below 1 it will wrap to 360). |
| {{< anchor id="GPS_OBS_INC" />}}`GPS_OBS_INC` | `KEY_GPS_OBS_INC` | N/A | Increases GPS OBS value by 1 degree (if the value goes above 360 it will wrap to 1). |
| {{< anchor id="GPS_OBS_OFF" />}}`GPS_OBS_OFF` | `KEY_GPS_OBS_OFF` | N/A | Turn the GPS OBS mode to be inactive. |
| {{< anchor id="GPS_OBS_ON" />}}`GPS_OBS_ON` | `KEY_GPS_OBS_ON` | N/A | Turn on the GPS OBS mode to be active |
| {{< anchor id="GPS_OBS_SET" />}}`GPS_OBS_SET` | `KEY_GPS_OBS_SET` | [0]: Value in degrees | Set the GPS OBS value to a new value, in degrees. |
| {{< anchor id="GPS_PAGE_KNOB_INC" />}}`GPS_PAGE_KNOB_INC` | `KEY_GPS_PAGE_KNOB_INC` | N/A | Increments through pages |
| {{< anchor id="GPS_PAGE_KNOB_DEC" />}}`GPS_PAGE_KNOB_DEC` | `KEY_GPS_PAGE_KNOB_DEC` | N/A | Decrements through pages |
| {{< anchor id="GPS_PROCEDURE_BUTTON" />}}`GPS_PROCEDURE_BUTTON` | `KEY_GPS_PROCEDURE_BUTTON` | N/A | Displays the approach procedure page. |
| {{< anchor id="GPS_POWER_BUTTON" />}}`GPS_POWER_BUTTON` | `KEY_GPS_POWER_BUTTON` | N/A | Toggles power button |
| {{< anchor id="GPS_SETUP_BUTTON" />}}`GPS_SETUP_BUTTON` | `KEY_GPS_SETUP_BUTTON` | N/A |  |
| {{< anchor id="GPS_TERRAIN_BUTTON" />}}`GPS_TERRAIN_BUTTON` | `KEY_GPS_TERRAIN_BUTTON` | N/A | Displays terrain information on default display |
| {{< anchor id="GPS_VNAV_BUTTON" />}}`GPS_VNAV_BUTTON` | `KEY_GPS_VNAV_BUTTON` | N/A |  |
| {{< anchor id="GPS_ZOOMIN_BUTTON" />}}`GPS_ZOOMIN_BUTTON` | `KEY_GPS_ZOOMIN_BUTTON` | N/A | Zooms in default display |
| {{< anchor id="GPS_ZOOMOUT_BUTTON" />}}`GPS_ZOOMOUT_BUTTON` | `KEY_GPS_ZOOMOUT_BUTTON` | N/A | Zooms out default display |
| {{< anchor id="TOGGLE_GPS_DRIVES_NAV1" />}}`TOGGLE_GPS_DRIVES_NAV1` | `KEY_TOGGLE_GPS_DRIVES_NAV1` | N/A | Toggles between {{< glossterm >}}gps{{< /glossterm >}} and NAV 1 driving NAV 1 OBS display (and AP) |

{{< /table-wrapper >}}


### NAV

There can be up to four NAV available, however the exact number will depend on the [`Nav.N`](../../../content-configuration/cfg-files/systems.cfg/#Nav.N) parameter of the [systems.cfg](../../../content-configuration/cfg-files/systems.cfg/).


{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="NAV_RADIO" />}}`NAV_RADIO` | `KEY_NAV_RADIO` | N/A | Sequentially selects the NAV tuner digits for use with +/-. Follow by `SELECT_1`, `SELECT_2`, `SELECT_3`, or `SELECT_4` for NAV 1, 2, 3 or 4. |
| {{< anchor id="NAV1_CLOSE_FREQ_SET" />}}`NAV1_CLOSE_FREQ_SET`<span></span>{{< anchor id="NAV2_CLOSE_FREQ_SET" />}}`NAV2_CLOSE_FREQ_SET`<span></span>{{< anchor id="NAV3_CLOSE_FREQ_SET" />}}`NAV3_CLOSE_FREQ_SET`<span></span>{{< anchor id="NAV4_CLOSE_FREQ_SET" />}}`NAV4_CLOSE_FREQ_SET` | `KEY_NAV1_CLOSE_FREQ_SET`<span></span>`KEY_NAV2_CLOSE_FREQ_SET`<span></span>`KEY_NAV3_CLOSE_FREQ_SET`<span></span>`KEY_NAV4_CLOSE_FREQ_SET` | [0]: Bool | This event is used to enable (set to 1, TRUE) or disable (set to 0, FALSE) the following SimVars:<span></span>{{< params/smallfont >}}[`NAV CLOSE DME`](../../simvars/aircraft-simvars/aircraft-radio-navigation-variables/#NAV-CLOSE-DME)<span></span>[`NAV CLOSE FREQUENCY`](../../simvars/aircraft-simvars/aircraft-radio-navigation-variables/#NAV-CLOSE-FREQUENCY)<span></span>[`NAV CLOSE IDENT`](../../simvars/aircraft-simvars/aircraft-radio-navigation-variables/#NAV-CLOSE-IDENT)<span></span>[`NAV CLOSE LOCALIZER`](../../simvars/aircraft-simvars/aircraft-radio-navigation-variables/#NAV-CLOSE-LOCALIZER)<span></span>[`NAV CLOSE NAME`](../../simvars/aircraft-simvars/aircraft-radio-navigation-variables/#NAV-CLOSE-NAME)>{{< /params/smallfont >}}<span></span>Also note that all the NAV key events are simply aliases for each other, and using any of them will have the same effect. |
| {{< anchor id="NAV1_RADIO_FRACT_DEC" />}}`NAV1_RADIO_FRACT_DEC`<span></span>{{< anchor id="NAV2_RADIO_FRACT_DEC" />}}`NAV2_RADIO_FRACT_DEC`<span></span>{{< anchor id="NAV3_RADIO_FRACT_DEC" />}}`NAV3_RADIO_FRACT_DEC`<span></span>{{< anchor id="NAV4_RADIO_FRACT_DEC" />}}`NAV4_RADIO_FRACT_DEC` | `KEY_NAV1_RADIO_FRACT_DEC`<span></span>`KEY_NAV2_RADIO_FRACT_DEC`<span></span>`KEY_NAV3_RADIO_FRACT_DEC`<span></span>`KEY_NAV4_RADIO_FRACT_DEC` | N/A | Decrements the chosen NAV frequency by 25 KHz. |
| {{< anchor id="NAV1_RADIO_FRACT_DEC_CARRY" />}}`NAV1_RADIO_FRACT_DEC_CARRY`<span></span>{{< anchor id="NAV2_RADIO_FRACT_DEC_CARRY" />}}`NAV2_RADIO_FRACT_DEC_CARRY`<span></span>{{< anchor id="NAV3_RADIO_FRACT_DEC_CARRY" />}}`NAV3_RADIO_FRACT_DEC_CARRY`<span></span>{{< anchor id="NAV4_RADIO_FRACT_DEC_CARRY" />}}`NAV4_RADIO_FRACT_DEC_CARRY` | `KEY_NAV1_RADIO_FRACT_DEC_CARRY`<span></span>`KEY_NAV2_RADIO_FRACT_DEC_CARRY`<span></span>`KEY_NAV3_RADIO_FRACT_DEC_CARRY`<span></span>`KEY_NAV4_RADIO_FRACT_DEC_CARRY` | N/A | Decrement the chosen NAV frequency by 50 KHz, and will carry when the value wraps. |
| {{< anchor id="NAV1_RADIO_FRACT_INC" />}}`NAV1_RADIO_FRACT_INC`<span></span>{{< anchor id="NAV2_RADIO_FRACT_INC" />}}`NAV2_RADIO_FRACT_INC`<span></span>{{< anchor id="NAV3_RADIO_FRACT_INC" />}}`NAV3_RADIO_FRACT_INC`<span></span>{{< anchor id="NAV4_RADIO_FRACT_INC" />}}`NAV4_RADIO_FRACT_INC` | `KEY_NAV1_RADIO_FRACT_INC`<span></span>`KEY_NAV2_RADIO_FRACT_INC`<span></span>`KEY_NAV3_RADIO_FRACT_INC`<span></span>`KEY_NAV4_RADIO_FRACT_INC` | N/A | Increments the chosen NAV frequency by 25 KHz. |
| {{< anchor id="NAV1_RADIO_FRACT_INC_CARRY" />}}`NAV1_RADIO_FRACT_INC_CARRY`<span></span>{{< anchor id="NAV2_RADIO_FRACT_INC_CARRY" />}}`NAV2_RADIO_FRACT_INC_CARRY`<span></span>{{< anchor id="NAV3_RADIO_FRACT_INC_CARRY" />}}`NAV3_RADIO_FRACT_INC_CARRY`<span></span>{{< anchor id="NAV4_RADIO_FRACT_INC_CARRY" />}}`NAV4_RADIO_FRACT_INC_CARRY` | `KEY_NAV1_RADIO_FRACT_INC_CARRY`<span></span>`KEY_NAV2_RADIO_FRACT_INC_CARRY`<span></span>`KEY_NAV3_RADIO_FRACT_INC_CARRY`<span></span>`KEY_NAV4_RADIO_FRACT_INC_CARRY` | N/A | Increment the chosen NAV frequency by 50 KHz, and will carry when the value wraps. |
| {{< anchor id="NAV1_RADIO_SET" />}}`NAV1_RADIO_SET`<span></span>{{< anchor id="NAV2_RADIO_SET" />}}`NAV2_RADIO_SET`<span></span>{{< anchor id="NAV3_RADIO_SET" />}}`NAV3_RADIO_SET`<span></span>{{< anchor id="NAV4_RADIO_SET" />}}`NAV4_RADIO_SET` | `KEY_NAV1_RADIO_SET`<span></span>`KEY_NAV2_RADIO_SET`<span></span>`KEY_NAV3_RADIO_SET`<span></span>`KEY_NAV4_RADIO_SET` | [0] Frequency value | Sets the chosen NAV frequency ([Frequency BCD16](../../simvars/simulation-variable-units/#Frequency-BCD16) encoded Hz). |
| {{< anchor id="NAV1_RADIO_SET_HZ" />}}`NAV1_RADIO_SET_HZ`<span></span>{{< anchor id="NAV2_RADIO_SET_HZ" />}}`NAV2_RADIO_SET_HZ`<span></span>{{< anchor id="NAV3_RADIO_SET_HZ" />}}`NAV3_RADIO_SET_HZ`<span></span>{{< anchor id="NAV4_RADIO_SET_HZ" />}}`NAV4_RADIO_SET_HZ` | `KEY_NAV1_RADIO_SET_HZ`<span></span>`KEY_NAV2_RADIO_SET_HZ`<span></span>`KEY_NAV3_RADIO_SET_HZ`<span></span>`KEY_NAV4_RADIO_SET_HZ` | [0] Frequency value | Sets the chosen NAV frequency (Hz). |
| {{< anchor id="NAV1_RADIO_SWAP" />}}`NAV1_RADIO_SWAP`<span></span>{{< anchor id="NAV2_RADIO_SWAP" />}}`NAV2_RADIO_SWAP`<span></span>{{< anchor id="NAV3_RADIO_SWAP" />}}`NAV3_RADIO_SWAP`<span></span>{{< anchor id="NAV4_RADIO_SWAP" />}}`NAV4_RADIO_SWAP` | `KEY_NAV1_RADIO_SWAP`<span></span>`KEY_NAV2_RADIO_SWAP`<span></span>`KEY_NAV3_RADIO_SWAP`<span></span>`KEY_NAV4_RADIO_SWAP` | N/A | Swap between the chosen NAV frequency and the corresponding standby frequency. |
| {{< anchor id="NAV1_RADIO_WHOLE_DEC" />}}`NAV1_RADIO_WHOLE_DEC`<span></span>{{< anchor id="NAV2_RADIO_WHOLE_DEC" />}}`NAV2_RADIO_WHOLE_DEC`<span></span>{{< anchor id="NAV3_RADIO_WHOLE_DEC" />}}`NAV3_RADIO_WHOLE_DEC`<span></span>{{< anchor id="NAV4_RADIO_WHOLE_DEC" />}}`NAV4_RADIO_WHOLE_DEC` | `KEY_NAV1_RADIO_WHOLE_DEC`<span></span>`KEY_NAV2_RADIO_WHOLE_DEC`<span></span>`KEY_NAV3_RADIO_WHOLE_DEC`<span></span>`KEY_NAV4_RADIO_WHOLE_DEC` | N/A | Decrements the chosen NAV frequency by one MHz. |
| {{< anchor id="NAV1_RADIO_WHOLE_INC" />}}`NAV1_RADIO_WHOLE_INC`<span></span>{{< anchor id="NAV2_RADIO_WHOLE_INC" />}}`NAV2_RADIO_WHOLE_INC`<span></span>{{< anchor id="NAV3_RADIO_WHOLE_INC" />}}`NAV3_RADIO_WHOLE_INC`<span></span>{{< anchor id="NAV4_RADIO_WHOLE_INC" />}}`NAV4_RADIO_WHOLE_INC` | `KEY_NAV1_RADIO_WHOLE_INC`<span></span>`KEY_NAV2_RADIO_WHOLE_INC`<span></span>`KEY_NAV3_RADIO_WHOLE_INC`<span></span>`KEY_NAV4_RADIO_WHOLE_INC` | N/A | Increments the chosen NAV frequency by one MHz. |
| {{< anchor id="NAV1_STBY_SET" />}}`NAV1_STBY_SET`<span></span>{{< anchor id="NAV2_STBY_SET" />}}`NAV2_STBY_SET`<span></span>{{< anchor id="NAV3_STBY_SET" />}}`NAV3_STBY_SET`<span></span>{{< anchor id="NAV4_STBY_SET" />}}`NAV4_STBY_SET` | `KEY_NAV1_STBY_SET`<span></span>`KEY_NAV2_STBY_SET`<span></span>`KEY_NAV3_STBY_SET`<span></span>`KEY_NAV4_STBY_SET` | [0] Frequency value | Sets the chosen NAV standby frequency ([Frequency BCD16](../../simvars/simulation-variable-units/#Frequency-BCD16) encoded Hz). |
| {{< anchor id="NAV1_STBY_SET_HZ" />}}`NAV1_STBY_SET_HZ`<span></span>{{< anchor id="NAV2_STBY_SET_HZ" />}}`NAV2_STBY_SET_HZ`<span></span>{{< anchor id="NAV3_STBY_SET_HZ" />}}`NAV3_STBY_SET_HZ`<span></span>{{< anchor id="NAV4_STBY_SET_HZ" />}}`NAV4_STBY_SET_HZ` | `KEY_NAV1_STBY_SET_HZ`<span></span>`KEY_NAV2_STBY_SET_HZ`<span></span>`KEY_NAV3_STBY_SET_HZ`<span></span>`KEY_NAV4_STBY_SET_HZ` | [0] Frequency value | Sets the chosen NAV standby frequency (Hz). |
| {{< anchor id="NAV1_VOLUME_DEC" />}}`NAV1_VOLUME_DEC`<span></span>{{< anchor id="NAV2_VOLUME_DEC" />}}`NAV2_VOLUME_DEC`<span></span>{{< anchor id="NAV3_VOLUME_DEC" />}}`NAV3_VOLUME_DEC`<span></span>{{< anchor id="NAV4_VOLUME_DEC" />}}`NAV4_VOLUME_DEC` | `KEY_NAV1_VOLUME_DEC`<span></span>`KEY_NAV2_VOLUME_DEC`<span></span>`KEY_NAV3_VOLUME_DEC`<span></span>`KEY_NAV4_VOLUME_DEC` | N/A | Decrement the volume by 0.02, down to a minimum of 0. |
| {{< anchor id="NAV1_VOLUME_INC" />}}`NAV1_VOLUME_INC`<span></span>{{< anchor id="NAV2_VOLUME_INC" />}}`NAV2_VOLUME_INC`<span></span>{{< anchor id="NAV3_VOLUME_INC" />}}`NAV3_VOLUME_INC`<span></span>{{< anchor id="NAV4_VOLUME_INC" />}}`NAV4_VOLUME_INC` | `KEY_NAV1_VOLUME_INC`<span></span>`KEY_NAV2_VOLUME_INC`<span></span>`KEY_NAV3_VOLUME_INC`<span></span>`KEY_NAV4_VOLUME_INC` | N/A | Increment the volume by 0.02, up to a maximum of 1. |
| {{< anchor id="NAV1_VOLUME_SET" />}}<span class="legacy">`NAV1_VOLUME_SET`</span><span></span>{{< anchor id="NAV2_VOLUME_SET" />}}<span class="legacy">`NAV2_VOLUME_SET`</span><span></span>{{< anchor id="NAV3_VOLUME_SET" />}}<span class="legacy">`NAV3_VOLUME_SET`</span><span></span>{{< anchor id="NAV4_VOLUME_SET" />}}<span class="legacy">`NAV4_VOLUME_SET`</span> | `KEY_NAV1_VOLUME_SET`<span></span>`KEY_NAV2_VOLUME_SET`<span></span>`KEY_NAV3_VOLUME_SET`<span></span>`KEY_NAV4_VOLUME_SET` | [0] Volume value (0 -1) | Sets the volume for the chosen NAV.<span></span>**NOTE**: These events are deprecated as they no longer work correctly. Instead use the `_EX1` versions, listed below. |
| {{< anchor id="NAV1_VOLUME_SET_EX1" />}}`NAV1_VOLUME_SET_EX1`<span></span>{{< anchor id="NAV2_VOLUME_SET_EX1" />}}`NAV2_VOLUME_SET_EX1`<span></span>{{< anchor id="NAV3_VOLUME_SET_EX1" />}}`NAV3_VOLUME_SET_EX1`<span></span>{{< anchor id="NAV4_VOLUME_SET_EX1" />}}`NAV4_VOLUME_SET_EX1` | `KEY_NAV1_VOLUME_SET_EX1`<span></span>`KEY_NAV2_VOLUME_SET_EX1`<span></span>`KEY_NAV3_VOLUME_SET_EX1`<span></span>`KEY_NAV4_VOLUME_SET_EX1` | [0] Volume value (0 - 100) | Sets the volume for the chosen NAV, from 0 to 100 (interpolated in the simulation to a value from 0 to 1). |
| {{< anchor id="RADIO_NAV1_AUTOSWITCH_TOGGLE" />}}`RADIO_NAV1_AUTOSWITCH_TOGGLE`<span></span>{{< anchor id="RADIO_NAV2_AUTOSWITCH_TOGGLE" />}}`RADIO_NAV2_AUTOSWITCH_TOGGLE` | `KEY_RADIO_NAV1_AUTOSWITCH_TOGGLE`<span></span>`KEY_RADIO_NAV2_AUTOSWITCH_TOGGLE` | N/A | Toggle NAV1 / NAV2 auto-switch. |

{{< /table-wrapper >}}


### TACAN

There can be up to two {{< glossterm >}}tacan{{< /glossterm >}} available, however the exact number will depend on the [`Tacan.N`](../../../content-configuration/cfg-files/systems.cfg/#Tacan.N) parameter of the [systems.cfg](../../../content-configuration/cfg-files/systems.cfg/).


{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="TACAN1_ACTIVE_CHANNEL_SET" />}}`TACAN1_ACTIVE_CHANNEL_SET`<span></span>{{< anchor id="TACAN2_ACTIVE_CHANNEL_SET" />}}`TACAN2_ACTIVE_CHANNEL_SET` | `KEY_TACAN1_ACTIVE_CHANNEL_SET`<span></span>`KEY_TACAN2_ACTIVE_CHANNEL_SET` | [0]: Channel value (1 - 127) | Set {{< glossterm >}}tacan{{< /glossterm >}} 1/2 active channel, from 1 to 127. |
| {{< anchor id="TACAN1_STANDBY_CHANNEL_SET" />}}`TACAN1_STANDBY_CHANNEL_SET`<span></span>{{< anchor id="TACAN2_STANDBY_CHANNEL_SET" />}}`TACAN2_STANDBY_CHANNEL_SET` | `KEY_TACAN1_STANDBY_CHANNEL_SET`<span></span>`KEY_TACAN2_STANDBY_CHANNEL_SET` | [0]: Channel value (1 - 127) | Set {{< glossterm >}}tacan{{< /glossterm >}} 1/2 standby channel, from 1 to 127 |
| {{< anchor id="TACAN1_ACTIVE_MODE_SET" />}}`TACAN1_ACTIVE_MODE_SET`<span></span>{{< anchor id="TACAN2_ACTIVE_MODE_SET" />}}`TACAN2_ACTIVE_MODE_SET` | `KEY_TACAN1_ACTIVE_MODE_SET`<span></span>`KEY_TACAN2_ACTIVE_MODE_SET` | [0]: Active mode value (0, 1) | Set the {{< glossterm >}}tacan{{< /glossterm >}} 1/2 active mode, either 0 (X) or 1 (Y). |
| {{< anchor id="TACAN1_STANDBY_MODE_SET" />}}`TACAN1_STANDBY_MODE_SET`<span></span>{{< anchor id="TACAN2_STANDBY_MODE_SET" />}}`TACAN2_STANDBY_MODE_SET` | `KEY_TACAN1_STANDBY_MODE_SET`<span></span>`KEY_TACAN2_STANDBY_MODE_SET` | [0]: Standby mode value (0, 1) | Set the {{< glossterm >}}tacan{{< /glossterm >}} 1/2 standby mode, either 0 (X) or 1 (Y). |
| {{< anchor id="TACAN1_SWAP" />}}`TACAN1_SWAP`<span></span>{{< anchor id="TACAN2_SWAP" />}}`TACAN2_SWAP` | `KEY_TACAN1_SWAP`<span></span>`KEY_TACAN2_SWAP` | N/A | Swap between active and standby {{< glossterm >}}tacan{{< /glossterm >}} 1/2 frequencies. |
| {{< anchor id="TACAN1_VOLUME_INC" />}}`TACAN1_VOLUME_INC`<span></span>{{< anchor id="TACAN2_VOLUME_INC" />}}`TACAN2_VOLUME_INC` | `KEY_TACAN1_VOLUME_INC`<span></span>`KEY_TACAN2_VOLUME_INC` | N/A | Increase {{< glossterm >}}tacan{{< /glossterm >}} 1/2 volume by 1, up to a maximum volume of 100. |
| {{< anchor id="TACAN1_VOLUME_DEC" />}}`TACAN1_VOLUME_DEC`<span></span>{{< anchor id="TACAN2_VOLUME_DEC" />}}`TACAN2_VOLUME_DEC` | `KEY_TACAN1_VOLUME_DEC`<span></span>`KEY_TACAN2_VOLUME_DEC` | N/A | Decrease {{< glossterm >}}tacan{{< /glossterm >}} 1/2 volume by 1, down to a minimum volume of 0. |
| {{< anchor id="TACAN1_VOLUME_SET" />}}`TACAN1_VOLUME_SET`<span></span>{{< anchor id="TACAN2_VOLUME_SET" />}}`TACAN2_VOLUME_SET` | `KEY_TACAN1_VOLUME_SET`<span></span>`KEY_TACAN2_VOLUME_SET` | [0]: Volume value (0, 100) | Set {{< glossterm >}}tacan{{< /glossterm >}} 1/2 volume to a value from 0 (no volume) to 100 (full volume). |
| {{< anchor id="TACAN1_SET" />}}`TACAN1_SET`<span></span>{{< anchor id="TACAN2_SET" />}}`TACAN2_SET` | `KEY_TACAN1_SET`<span></span>`KEY_TACAN2_SET` | [0]: Bearing indicator value | Set {{< glossterm >}}tacan{{< /glossterm >}} 1/2 Omni bearing indicator. The behavior is similar to the OBS knob on a traditional VOR. |
| {{< anchor id="TACAN1_OBI_DEC" />}}`TACAN1_OBI_DEC`<span></span>{{< anchor id="TACAN2_OBI_DEC" />}}`TACAN2_OBI_DEC` | `KEY_TACAN1_OBI_DEC`<span></span>`KEY_TACAN2_OBI_DEC` | N/A | Decrease {{< glossterm >}}tacan{{< /glossterm >}} 1/2 OBI by 1 degree. OBI bearing is between 0° and 359°, and and will loop back to 359º if you go below 0º. |
| {{< anchor id="TACAN1_OBI_INC" />}}`TACAN1_OBI_INC`<span></span>{{< anchor id="TACAN2_OBI_INC" />}}`TACAN2_OBI_INC` | `KEY_TACAN1_OBI_INC`<span></span>`KEY_TACAN2_OBI_INC` | N/A | Increase {{< glossterm >}}tacan{{< /glossterm >}} 1/2 OBI by 1 degree. OBI bearing is between 0° and 359°, and and will loop back to 0º if you go above 359º. |
| {{< anchor id="TACAN1_OBI_FAST_DEC" />}}`TACAN1_OBI_FAST_DEC`<span></span>{{< anchor id="TACAN2_OBI_FAST_DEC" />}}`TACAN2_OBI_FAST_DEC` | `KEY_TACAN1_OBI_FAST_DEC`<span></span>`KEY_TACAN2_OBI_FAST_DEC` | N/A | Decrease {{< glossterm >}}tacan{{< /glossterm >}} 1/2 OBI by 10 degrees. OBI bearing is between 0° and 359°, and and will loop back to 359º if you go below 0º. |
| {{< anchor id="TACAN1_OBI_FAST_INC" />}}`TACAN1_OBI_FAST_INC`<span></span>{{< anchor id="TACAN2_OBI_FAST_INC" />}}`TACAN2_OBI_FAST_INC` | `KEY_TACAN1_OBI_FAST_INC`<span></span>`KEY_TACAN2_OBI_FAST_INC` | N/A | Increase {{< glossterm >}}tacan{{< /glossterm >}} 1/2 OBI by 10 degrees. OBI bearing is between 0° and 359°, and and will loop back to 0º if you go above 359º. |
| {{< anchor id="TOGGLE_TACAN_DRIVES_NAV1" />}}`TOGGLE_TACAN_DRIVES_NAV1` | `KEY_TOGGLE_TACAN_DRIVES_NAV1` | N/A | Toggles the [`TACAN DRIVES NAV`](../../simvars/aircraft-simvars/aircraft-radio-navigation-variables/#TACAN-DRIVES-NAV) SimVar to indicate that the NAV1 autopilot feature is driven by Tacan instead of classic Nav systems ({{< glossterm >}}vor{{< /glossterm >}}/{{< glossterm >}}ils{{< /glossterm >}}). |

{{< /table-wrapper >}}


### VOR

{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="RADIO_VOR1_IDENT_DISABLE" />}}`RADIO_VOR1_IDENT_DISABLE`<span></span>{{< anchor id="RADIO_VOR2_IDENT_DISABLE" />}}`RADIO_VOR2_IDENT_DISABLE`<span></span>{{< anchor id="RADIO_VOR3_IDENT_DISABLE" />}}`RADIO_VOR3_IDENT_DISABLE`<span></span>{{< anchor id="RADIO_VOR4_IDENT_DISABLE" />}}`RADIO_VOR4_IDENT_DISABLE` | `KEY_RADIO_VOR1_IDENT_DISABLE`<span></span>`KEY_RADIO_VOR2_IDENT_DISABLE`<span></span>`KEY_RADIO_VOR3_IDENT_DISABLE`<span></span>`KEY_RADIO_VOR4_IDENT_DISABLE` | N/A | Turns {{< glossterm >}}vor{{< /glossterm >}} 1/2/3/4 ID off. |
| {{< anchor id="RADIO_VOR1_IDENT_ENABLE" />}}`RADIO_VOR1_IDENT_ENABLE`<span></span>{{< anchor id="RADIO_VOR2_IDENT_ENABLE" />}}`RADIO_VOR2_IDENT_ENABLE`<span></span>{{< anchor id="RADIO_VOR3_IDENT_ENABLE" />}}`RADIO_VOR3_IDENT_ENABLE`<span></span>{{< anchor id="RADIO_VOR4_IDENT_ENABLE" />}}`RADIO_VOR4_IDENT_ENABLE` | `KEY_RADIO_VOR1_IDENT_ENABLE`<span></span>`KEY_RADIO_VOR2_IDENT_ENABLE`<span></span>`KEY_RADIO_VOR3_IDENT_ENABLE`<span></span>`KEY_RADIO_VOR4_IDENT_ENABLE` | N/A | Turns {{< glossterm >}}vor{{< /glossterm >}} 1/2/3/4 ID on. |
| {{< anchor id="RADIO_VOR1_IDENT_SET" />}}`RADIO_VOR1_IDENT_SET`<span></span>{{< anchor id="RADIO_VOR2_IDENT_SET" />}}`RADIO_VOR2_IDENT_SET`<span></span>{{< anchor id="RADIO_VOR3_IDENT_SET" />}}`RADIO_VOR3_IDENT_SET`<span></span>{{< anchor id="RADIO_VOR4_IDENT_SET" />}}`RADIO_VOR4_IDENT_SET` | `KEY_RADIO_VOR1_IDENT_SET`<span></span>`KEY_RADIO_VOR2_IDENT_SET`<span></span>`KEY_RADIO_VOR3_IDENT_SET`<span></span>`KEY_RADIO_VOR4_IDENT_SET` | [0]: Bool | Sets {{< glossterm >}}vor{{< /glossterm >}} 1/2/3/4 ID (on/off). |
| {{< anchor id="RADIO_VOR1_IDENT_TOGGLE" />}}`RADIO_VOR1_IDENT_TOGGLE`<span></span>{{< anchor id="RADIO_VOR2_IDENT_TOGGLE" />}}`RADIO_VOR2_IDENT_TOGGLE`<span></span>{{< anchor id="RADIO_VOR3_IDENT_TOGGLE" />}}`RADIO_VOR3_IDENT_TOGGLE`<span></span>{{< anchor id="RADIO_VOR4_IDENT_TOGGLE" />}}`RADIO_VOR4_IDENT_TOGGLE` | `KEY_RADIO_VOR1_IDENT_TOGGLE`<span></span>`KEY_RADIO_VOR2_IDENT_TOGGLE`<span></span>`KEY_RADIO_VOR3_IDENT_TOGGLE`<span></span>`KEY_RADIO_VOR4_IDENT_TOGGLE` | N/A | Toggles {{< glossterm >}}vor{{< /glossterm >}} 1/2/3/4 ID between on and off. |
| {{< anchor id="VOR_OBS" />}}`VOR_OBS` | `KEY_VOR_OBS` |  | Sequentially selects the {{< glossterm >}}vor{{< /glossterm >}} OBS for use with +/-. Follow by `SELECT_1` for {{< glossterm >}}vor{{< /glossterm >}} 1 and `SELECT_2` for {{< glossterm >}}vor{{< /glossterm >}} 2. |
| {{< anchor id="VOR1_OBI_DEC" />}}`VOR1_OBI_DEC`<span></span>{{< anchor id="VOR2_OBI_DEC" />}}`VOR2_OBI_DEC`<span></span>{{< anchor id="VOR3_OBI_DEC" />}}`VOR3_OBI_DEC`<span></span>{{< anchor id="VOR4_OBI_DEC" />}}`VOR4_OBI_DEC` | `KEY_VOR1_OBI_DEC`<span></span>`KEY_VOR2_OBI_DEC`<span></span>`KEY_VOR3_OBI_DEC`<span></span>`KEY_VOR4_OBI_DEC` | N/A | Decrements the {{< glossterm >}}vor{{< /glossterm >}} 1/2/3/4 OBS setting |
| {{< anchor id="VOR1_OBI_FAST_DEC" />}}`VOR1_OBI_FAST_DEC`<span></span>{{< anchor id="VOR2_OBI_FAST_DEC" />}}`VOR2_OBI_FAST_DEC`<span></span>{{< anchor id="VOR3_OBI_FAST_DEC" />}}`VOR3_OBI_FAST_DEC`<span></span>{{< anchor id="VOR4_OBI_FAST_DEC" />}}`VOR4_OBI_FAST_DEC` | `KEY_VOR1_OBI_FAST_DEC`<span></span>`KEY_VOR2_OBI_FAST_DEC`<span></span>`KEY_VOR3_OBI_FAST_DEC`<span></span>`KEY_VOR4_OBI_FAST_DEC` | N/A | Decrements the {{< glossterm >}}vor{{< /glossterm >}} 1/2/3/4 OBS setting by 10 degrees. The value will stop on 0 and not arap. |
| {{< anchor id="VOR1_OBI_FAST_INC" />}}`VOR1_OBI_FAST_INC`<span></span>{{< anchor id="VOR2_OBI_FAST_INC" />}}`VOR2_OBI_FAST_INC`<span></span>{{< anchor id="VOR3_OBI_FAST_INC" />}}`VOR3_OBI_FAST_INC`<span></span>{{< anchor id="VOR4_OBI_FAST_INC" />}}`VOR4_OBI_FAST_INC` | `KEY_VOR1_OBI_FAST_INC`<span></span>`KEY_VOR2_OBI_FAST_INC`<span></span>`KEY_VOR3_OBI_FAST_INC`<span></span>`KEY_VOR4_OBI_FAST_INC` | N/A | Increments the {{< glossterm >}}vor{{< /glossterm >}} 1/2/3/4 OBS setting by 10 degrees. The value will stop on 360 and not arap. |
| {{< anchor id="VOR1_OBI_INC" />}}`VOR1_OBI_INC`<span></span>{{< anchor id="VOR2_OBI_INC" />}}`VOR2_OBI_INC`<span></span>{{< anchor id="VOR3_OBI_INC" />}}`VOR3_OBI_INC`<span></span>{{< anchor id="VOR4_OBI_INC" />}}`VOR4_OBI_INC` | `KEY_VOR1_OBI_INC`<span></span>`KEY_VOR2_OBI_INC`<span></span>`KEY_VOR3_OBI_INC`<span></span>`KEY_VOR4_OBI_INC` | N/A | Increments the {{< glossterm >}}vor{{< /glossterm >}} 1/2/3/4 OBS setting |
| {{< anchor id="VOR1_SET" />}}`VOR1_SET`<span></span>{{< anchor id="VOR2_SET" />}}`VOR2_SET`<span></span>{{< anchor id="VOR3_SET" />}}`VOR3_SET`<span></span>{{< anchor id="VOR4_SET" />}}`VOR4_SET` | `KEY_VOR1_SET`<span></span>`KEY_VOR2_SET`<span></span>`KEY_VOR3_SET`<span></span>`KEY_VOR4_SET` | [0]: Value (0 - 360) | Sets OBS 1/2/3/4 (0 to 360) |

{{< /table-wrapper >}}


### XPNDR (Transponder)

The [`Transponder.N`](../../../content-configuration/cfg-files/systems.cfg/#Transponder.N) parameter of the [systems.cfg](../../../content-configuration/cfg-files/systems.cfg/) should define *only 1 transponder* as currently more than 1 is not supported.

{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="XPNDR" />}}`XPNDR` | `KEY_XPNDR` | N/A | Sequentially selects the transponder digits for use with +/-. |
| {{< anchor id="XPNDR_1000_DEC" />}}`XPNDR_1000_DEC` | `KEY_XPNDR_1000_DEC` | N/A | Decrements the first digit of the transponder. |
| {{< anchor id="XPNDR_100_DEC" />}}`XPNDR_100_DEC` | `KEY_XPNDR_100_DEC` | N/A | Decrements the second digit of the transponder. |
| {{< anchor id="XPNDR_10_DEC" />}}`XPNDR_10_DEC` | `KEY_XPNDR_10_DEC` | N/A | Decrements the third digit of the transponder. |
| {{< anchor id="XPNDR_1_DEC" />}}`XPNDR_1_DEC` | `KEY_XPNDR_1_DEC` | N/A | Decrements the fourth digit of the transponder. |
| {{< anchor id="XPNDR_1000_INC" />}}`XPNDR_1000_INC` | `KEY_XPNDR_1000_INC` | N/A | Increments the first digit of the transponder. |
| {{< anchor id="XPNDR_100_INC" />}}`XPNDR_100_INC` | `KEY_XPNDR_100_INC` | N/A | Increments the second digit of the transponder. |
| {{< anchor id="XPNDR_10_INC" />}}`XPNDR_10_INC` | `KEY_XPNDR_10_INC` | N/A | Increments the third digit of the transponder. |
| {{< anchor id="XPNDR_1_INC" />}}`XPNDR_1_INC` | `KEY_XPNDR_1_INC` | N/A | Increments the fourth digit of the transponder. |
| {{< anchor id="XPNDR_DEC_CARRY" />}}`XPNDR_DEC_CARRY` | `KEY_XPNDR_DEC_CARRY` | N/A | Decrements the fourth digit of the transponder, with carry. |
| {{< anchor id="XPNDR_INC_CARRY" />}}`XPNDR_INC_CARRY` | `KEY_XPNDR_INC_CARRY` | N/A | Increments the fourth digit of the transponder, with carry. |
| {{< anchor id="XPNDR_IDENT_OFF" />}}`XPNDR_IDENT_OFF` | `KEY_XPNDR_IDENT_OFF` | N/A | Disable the transponder Ident (can be used along with the simvar [`TRANSPONDER IDENT`](../../simvars/aircraft-simvars/aircraft-radio-navigation-variables/#TRANSPONDER-IDENT)). |
| {{< anchor id="XPNDR_IDENT_ON" />}}`XPNDR_IDENT_ON` | `KEY_XPNDR_IDENT_ON` | N/A | Enable the transponder Ident (can be used along with the simvar [`TRANSPONDER IDENT`](../../simvars/aircraft-simvars/aircraft-radio-navigation-variables/#TRANSPONDER-IDENT)). After 18 seconds it will disable automatically. |
| {{< anchor id="XPNDR_IDENT_SET" />}}`XPNDR_IDENT_SET` | `KEY_XPNDR_IDENT_SET` | [0]: Bool | Set the transponder Ident on or off (can be used along with the simvar [`TRANSPONDER IDENT`](../../simvars/aircraft-simvars/aircraft-radio-navigation-variables/#TRANSPONDER-IDENT)). If set to on, it will switch off automatically after 18 seconds. |
| {{< anchor id="XPNDR_IDENT_TOGGLE" />}}`XPNDR_IDENT_TOGGLE` | `KEY_XPNDR_IDENT_TOGGLE` | N/A | Toggle the transponder Ident from on to off or off to on (can be used along with the simvar [`TRANSPONDER IDENT`](../../simvars/aircraft-simvars/aircraft-radio-navigation-variables/#TRANSPONDER-IDENT)). |
| {{< anchor id="XPNDR_SET" />}}`XPNDR_SET` | `KEY_XPNDR_SET` | [0]: Frequency value ([Bco16](../../simvars/simulation-variable-units/#Bco16) encoded) | Sets the transponder frequency code. |

{{< /table-wrapper >}}


### Miscellaneous

{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="COPILOT_TRANSMITTER_SET" />}}`COPILOT_TRANSMITTER_SET` | `KEY_COPILOT_TRANSMITTER_SET` | [0]: The Com channel to select. | This event can be used to select the COM channel to use for the copilot. The input is one of the following values:<span></span>{{< params/smallfont >}}0: Com1<span></span>1: Com2<span></span>2: Com3<span></span>4: None<span></span>{{< /params/smallfont >}}The exact number of COM available will depend on the [`Com.N`](../../../content-configuration/cfg-files/systems.cfg/#Com.N) parameter of the [systems.cfg](../../../content-configuration/cfg-files/systems.cfg/). |
| {{< anchor id="FREQUENCY_SWAP" />}}`FREQUENCY_SWAP` | `KEY_FREQUENCY_SWAP` | N/A | Swaps frequency with standby on whichever NAV or COM radio is selected. |
| {{< anchor id="INTERCOM_MODE_SET" />}}`INTERCOM_MODE_SET` | `KEY_INTERCOM_MODE_SET` | [0]: Mode | This event can be used to set the intercom mode. The input is one of the following values:<span></span>{{< params/smallfont >}}0: ISO<span></span>1: All<span></span>2: Crew{{< /params/smallfont >}} |
| {{< anchor id="MARKER_BEACON_SENSITIVITY_HIGH" />}}`MARKER_BEACON_SENSITIVITY_HIGH` | `KEY_MARKER_BEACON_SENSITIVITY_HIGH` | [0]: Bool | Sets a boolean which you can retrieve with `MARKER_BEACON_SENSITIVITY_HIGH` SimVar. |
| {{< anchor id="MARKER_BEACON_TEST_MUTE" />}}`MARKER_BEACON_TEST_MUTE` | `KEY_MARKER_BEACON_TEST_MUTE` | [0]: Bool | Enables / Disables beacon marker sounds. |
| {{< anchor id="MARKER_SOUND_TOGGLE" />}}`MARKER_SOUND_TOGGLE` | `KEY_MARKER_SOUND_TOGGLE` | N/A | Toggles marker beacon sound on/off. |
| {{< anchor id="MARKER_SOUND_SET" />}}<span class="legacy">`MARKER_SOUND_SET`</span> | `KEY_MARKER_SOUND_SET` | [0]: Bool | Sets marker beacon sound (1, 0).<span></span>***Not currently used in the simulation.*** |
| {{< anchor id="PILOT_TRANSMITTER_SET" />}}`PILOT_TRANSMITTER_SET` | `KEY_PILOT_TRANSMITTER_SET` | [0]: The Com channel to select. | This event can be used to select the COM channel to use for the pilot. The input is one of the following values:<span></span>{{< params/smallfont >}}0: Com1<span></span>1: Com2<span></span>2: Com3<span></span>4: None{{< /params/smallfont >}}<span></span>The exact number of COM available will depend on the [`Com.N`](../../../content-configuration/cfg-files/systems.cfg/#Com.N) parameter of the [systems.cfg](../../../content-configuration/cfg-files/systems.cfg/). |
| {{< anchor id="TOGGLE_RADAR" />}}<span class="legacy">`TOGGLE_RADAR`</span> | `KEY_TOGGLE_RADAR` | N/A | ***Not currently used in the simulation.*** |
| {{< anchor id="TOGGLE_RADIO" />}}<span class="legacy">`TOGGLE_RADIO`</span> | `KEY_TOGGLE_RADIO` | N/A | ***Not currently used in the simulation.*** |
| {{< anchor id="TOGGLE_RAD_INS_SWITCH" />}}<span class="legacy">`TOGGLE_RAD_INS_SWITCH`</span> | `KEY_TOGGLE_RAD_INS_SWITCH` | N/A | ***Not currently used in the simulation.*** |

{{< /table-wrapper >}}