Configuring Global settings

Global Settings

Syntax

The following shows all global parameters with optional ones commented out and their default values shown:

# fft_size = 512;
# multiple_demod_threads = false;
# multiple_output_threads = false;
# pidfile = "/run/rtl_airband.pid";
# stats_filepath = "";
# localtime = false;
# log_scan_activity = false;
# shout_metadata_delay = 3;
# tau = 200;

devices: ( ... );
mixers: { ... };    # optional

Explanation of keywords

• fft_size (integer, optional) - See Tweaking sampling rate and FFT size.
• multiple_demod_threads (boolean, optional) - See Multithreaded operation.
• multiple_output_threads (boolean, optional) - See Multithreaded operation.
• pidfile (string, optional) - See Changing PID file location
• stats_filepath (string, optional) - See Channel usage statistics
• localtime (boolean, optional) - If output filename timestamps should be in UTC (default) or local timezone (set to true)
• log_scan_activity (boolean, optional) - See Logging activity of scanned frequencies.
• shout_metadata_delay (int, optional) - Number of seconds before first metadata tag, valid range 0-32 inclusive.
• tau (int, optional) - Global value, can be overridden at a per-device and per-channel level, see NFM deemphasis

For configuring devices see:

• Configuring RTLSDR devices
• Configuring MiriSDR devices
• Configuring SoapySDR devices

For configuring mixers see Configuring mixers.