1. View or Change Radio Parameters

View Current Radio Parameters

get radio

Displays the current radio configuration.

Set Radio Parameters

set radio <freq>,<bw>,<sf>,<cr>

Sets the radio parameters for the node.

Parameters:

ParameterDescription
freqFrequency in MHz.
bwBandwidth in kHz.
sfSpreading factor (5–12).
crCoding rate (5–8).

Default: 869.618,62.5,8,5

Build flags:

  • LORA_FREQ
  • LORA_BW
  • LORA_SF
  • LORA_CR

Note: A reboot is required for changes to take effect.

2. View or Change Transmit Power

View Transmit Power

get tx

Displays the configured transmit power.

Set Transmit Power

set tx <dbm>

Sets the LoRa chip's transmit power.

Parameter:

  • dbm — Transmit power in dBm (1–22).

Build flag: LORA_TX_POWER

Default: Varies by board.

⚠️ Warning: This setting controls the LoRa chip's transmit power only. Some boards include an additional power amplifier that increases the total output power. Refer to your board's manual for the correct setting. Setting transmit power too high may violate local radio regulations.

3. Temporarily Change Radio Parameters

tempradio <freq>,<bw>,<sf>,<cr>,<timeout_mins>

Temporarily changes the radio parameters for a specified duration.

Parameters:

ParameterDescription
freqFrequency in MHz (300–2500).
bwBandwidth in kHz (7.8–500).
sfSpreading factor (5–12).
crCoding rate (5–8).
timeout_minsDuration in minutes; must be greater than 0.

Note: These settings are not saved to preferences and are cleared when the node reboots.

4. View or Change Frequency

View Current Frequency

get freq

Displays the configured radio frequency.

Set Frequency

set freq <frequency>

Changes the radio frequency.

Parameter:

  • frequency — Frequency in MHz.

Default: 869.618 MHz

Notes:

  • A reboot is required for changes to take effect.
  • The set freq <frequency> command is available via serial only.

5. Configure Radio Receive Gain

Compatibility: SX12xx and LR1110 radios running firmware v1.14.1 or later.

View Receive Gain

get radio.rxgain

Displays the current receive gain mode.

Set Receive Gain

set radio.rxgain <state>

Enables or disables the radio chip's boosted receive gain mode.

Parameter:

  • state — on or off.

Default: on

Note: If you upgraded from an older firmware version to v1.14.1 without erasing the flash, this setting may be off due to issue #2118.

6. Configure FEM Receive Gain

Controls the external LoRa Front-End Module (FEM) receive-path Low-Noise Amplifier (LNA) on supported boards.

View FEM Receive Gain

get radio.fem.rxgain

Displays the configured FEM receive gain state.

Set FEM Receive Gain

set radio.fem.rxgain <state>

Enables or disables the external FEM receive-path gain.

Parameter:

  • state — on or off.

Notes:

  • Only applies to supported boards.
  • This setting is separate from radio.rxgain, which controls the radio chip's receive gain mode.

7. Configure FEM Transmit Gain

Controls the software-selectable external LoRa FEM transmit gain on supported boards.

View FEM Transmit Gain

get radio.fem.txgain

Displays the configured FEM transmit gain state.

Set FEM Transmit Gain

set radio.fem.txgain <state>

Enables or disables the external FEM transmit gain.

Parameter:

  • state — on or off.

Station G3 Specific Information

On the Station G3:

  • Remove the PA PL1 jumper to enable software control.
  • on selects PA PL1 high/short.
  • off selects PA PL1 low/open.
  • The PA PL2 hardware jumper determines whether this switches between power levels 1/3 or 2/4.

⚠️ Important: Choose an operating level and SX1262 transmit power that comply with local radio-frequency limits and the Station G3 power-supply requirements.

Additional notes:

  • The setting is saved immediately.
  • On Station G3, the hardware level is applied at the start of the next transmission to avoid changing the PA supply rail while the amplifier is active.
  • The get command reports the configured state, which may differ from the hardware's current state until the node transmits again.