# SDR Options

This aims at covering all available SDR Settings for supported devices /
sources. The goal is not to explain what every option does (for that,
see the manufacturer's documentation for the specific device), but
rather allow users to find the right flags in CLI mode.

Where possible, consistency was kept to be rather easy to "guess" if you
know what you are looking for.

## Airspy

*   `gain_type` : The gain mode used by the device :

    *   0 is for Sensitive
    *   1 is for Linear
    *   2 is for Manual

*   `general_gain` : Overall gain for sensitive and linear mode. Ranges
    from 0 to 21, in dBs

*   `lna_gain, mixer_gain, vga_gain` : Used for manual gain tuning only

*   `bias` : Enable Bias-Tee power

*   `lna_agc` : Enable the LNA AGC

*   `mixer_agc` : Enable the Mixer AGC

## AirspyHF

*   `agc_mode` : 0 for disabled, otherwise :

    *   1 for LOW
    *   2 for HIGH

*   `attenuation` : Attenuation in dBs

*   `hf_lna` : Enable or disable the HF LNA

## HackRF

*   `amp` : Enable the main (non-programmable) amplifier
*   `lna_gain` : LNA Gain in dBs
*   `vga_gain` : VGA Gain in dBs
*   `bias` : Enable Bias-Tee power
*   `manual_bw` : Enable manual bandwidth filter
*   `manual_bw_value` : The bandwidth filter width in Hz

## BladeRF

*   `gain_mode` :

    *   0 is device default
    *   1 is manual
    *   2 is fast AGC
    *   3 is slow AGC
    *   4 is hybrid AGC

*   `gain` : General Gain in dBs

*   `bias` : Bias-Tee power (BladeRF 2.0 only)

*   `manual_bw` : Enable manual bandwidth filter

*   `manual_bw_value` : The bandwidth filter width in Hz

## LimeSDR

*   `gain` : Gain in dBs
*   `manual_bw` : Enable manual bandwidth filter
*   `manual_bw_value` : The bandwidth filter width in Hz

## RTL-SDR

*   `gain` : Device Gain in dBs
*   `agc` : Enable or disable the AGC
*   `bias` : Enable Bias-Tee power
*   `ppm_correction` : Frequency correction for dongles with drift

## RTL-TCP

*   `ip_address` : IPv4 Server address
*   `port` : Server port. Usually 1234
*   `gain` : Device Gain in dBs
*   `lna_agc` : Enable or disable the built-in LNA AGC
*   `bias` : Enable Bias-Tee power (if supported)
*   `ppm_correction` : Frequency correction for dongles with drift

## Aaronia Spectran V6

*   `ref_level` : Reference Level, in dBs

*   `usb_compression` :

    *   0 is auto
    *   1 is raw
    *   2 is compressed

*   `agc_mode` :

    *   0 is manual
    *   1 is peak
    *   2 is power

*   `enable_amp` : Enable the amp

*   `enable_preamp` : Enable the preamp

## SDDC (RX888, RX999, etc)

> [!note]
> Support for those is experimental. Things may not work as
expected!

*   `mode` : 0 for HF, 1 for VHF
*   `rf_gain` : RF Gain in dBs
*   `if_gain` : IF Gain in dBs
*   `bias` : Enable Bias-Tee power

## SDRPlay

> [!note]
> Some options are device-specific!

*   `lna_gain` : LNA Gain in dBs

*   `if_gain` : IF Gain in dBs

*   `bias` : Enable Bias-Tee power

*   `am_notch` : Enable the AM notch filter

*   `fm_notch` : Enable the FM notch filter

*   `dab_notch` : Enable the DAB notch filter

*   `am_port` : Select the AM antenna port

*   `antenna_input` : Select a specific antenna input. 0 is the first
    input

*   `agc_mode` : AGC Mode, 0 is disabled :

    *   1 is 5Hz
    *   2 is 50Hz
    *   3 is 500Hz

## SpyServer

*   `ip_address` : IPv4 Server address
*   `port` : Server port. Usually 5555
*   `bit_depth` : Bit depth to stream at. Options are 8/16/32
*   `gain` : Device gain in dBs
*   `digital_gain` : Software gain, in dBs

## SDR++ Server

> [!warning]
> Using SDR++ in CLI mode as a source is possible, but all
settings have to be setup from an UI connecting to the server
beforehand, including samplerate!

*   `ip_address` : IPv4 Server address
*   `port` : Server port. Usually 5259
*   `bit_depth` : Bit depth to stream at. Options are 8/16/32
*   `compression` : Use SDR++ Server compression (true / false)

## PlutoSDR

*   `gain` : Device Gain in dBs

*   `gain_mode` : Gain mode :

    *   1 is Manual
    *   2 is Fast Attack
    *   3 is Slow Attack
    *   4 is Hybrid

## USRP

*   `gain` : Device Gain in dBs
*   `channel` : Channel ID
*   `antenna` : Antenna ID
*   `bit_depth` : Bit depth. Can be 16 on all devices, 8 or 12 on some

## MiriSDR

*   `gain` : Device Gain in dBs
*   `bias` : Enable Bias-Tee power

## File

> [!note]
>  It is not recommended to use the file source for
live/autotrack - use offline decoding instead - but it may be useful for
testing purposes.

*   `file_path` : Path to the baseband file (can be `/dev/stdin` on
    Linux/macOS)
*   `baseband_type` : baseband type - can be u8, s8, s16, f32, or ziq
*   `iq_swap` : Swaps I/Q samples