NAME¶
rtl-sdr - an I/Q recorder for RTL2832 based DVB-T receivers
DESCRIPTION¶
Uses a re-purposed DVB-T receiver as a software defined radio to receive signals
in I/Q data form. Written for and incorporated in the osmocom rtl-sdr project.
In-Phase and Quadrature Phase data can faithfully represent all of the
information in a band of frequencies centered on a carrier signal frequency.
Much software is available for the RTL2832. Most of the user-level packages rely
on the librtlsdr library which comes as part of the rtl-sdr codebase. This
codebase contains both the library itself and also a number of command line
tools such as rtl_test, rtl_sdr, rtl_tcp, and rtl_fm. These command line tools
use the library to test for the existence of RTL2832 devices and to perform
basic data transfer functions to and from the device.
Because most of the RTL2832 devices are connected using USB, the librtlsdr
library depends on the libusb library to communicate with the device.
USAGE¶
This program captures information from a band of frequencies and outputs the
data in a form useful to other software radio programs.
SYNOPSIS¶
rtl_adsb [-f freq] [OPTIONS] [output file]
OPTIONS¶
- -f frequency_to_tune_to [Hz]
- -s samplerate (default: 2048000 Hz)
- -d device_index (default: 0)
- -g gain (default: 0 for auto)
- -p ppm_error (default: 0)
- -b output_block_size (default: 16 * 16384)
- -n number of samples to read (default: 0, infinite)
- -S force sync output (default: async)
- tfilename
-
(a '-' dumps samples to stdout)
EXAMPLES¶
- Example: To tune to 392.0 MHz, and set the sample-rate to 1.8 MS/s,
use:
-
./rtl_sdr /tmp/capture.bin -s 1.8e6 -f 392e6
to record samples to a file or to forward the data to a fifo.
If the device can't be opened, make sure you have the appropriate rights to
access the device (install udev-rules from the repository, or run it as root).
SEE ALSO¶
gnuradio(1)
RTL-SDR wiki documentation:
http://sdr.osmocom.org/trac/wiki/rtl-sdr
Other rtl-sdr programs:
rtl_adsb(1),
rtl_eeprom(1),
rtl_fm(1),
rtl_power(1),
rtl_tcp(1),
rtl_test(1)
AUTHOR¶
This manual page was written by Maitland Bottoms for the Debian project (but may
be used by others).
COPYRIGHT¶
Copyright (c) 2013 A. Maitland Bottoms <bottoms@debian.org>
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more
details.