RTL SDR¶
AIS-catcher
[-d serial number]
-gr
[setting value]
...
Gain and other settings specific to the RTL SDR can be set on the command line with the -gr switch. For example, the following command sets the tuner gain to +33.3 and switches the RTL AGC on:
AIS-catcher -gr tuner 33.3 rtlagc ON
On the command line, setting names and boolean values are not case-sensitive. In JSON configuration, keys are case-sensitive and must be lowercase.
Specific Settings¶
| Setting (JSON key / CLI setting name) | Type | Default | Description |
|---|---|---|---|
| Generic Options | |||
| sample_rate | integer | 1536K | Sampling rate in Hz (0-20,000,000) |
| bandwidth | integer | off | Tuner bandwidth in Hz (0-1,000,000, 0=auto) |
| freqoffset | integer | 0 | Frequency correction in PPM (-150 to +150) |
| Specific Options | |||
| tuner | auto/float | auto | Tuner gain/AGC (0-50 dB or AUTO) |
| rtlagc | boolean | true | Enable/disable RTL2832U AGC |
| biastee | boolean | false | Enable/disable bias tee power |
| buffer_count | integer | 24 | Number of FIFO buffers (1-100) |