.TH "rtl_sdr" 1 "0.5.0" RTL-SDR "User Commands"
  .SH NAME
  rtl-sdr \- an I/Q recorder for RTL2832 based DVB-T receivers
  .SH 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.
  .LP
  In-Phase and Quadrature Phase data can faithfully represent
  all of the information in a band of frequencies centered
  on a carrier signal frequency.
  .LP
  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.
  .LP
  Because most of the RTL2832 devices are connected using USB, the
  librtlsdr library depends on the libusb library to communicate with
  the device.
  .SH USAGE
  This program captures information from a band of frequencies
  and outputs the data in a form useful to other software radio
  programs.
  .SH SYNOPSIS
  .B  rtl_adsb [-f freq] [OPTIONS] [output file]
  .SH OPTIONS
  .IP "-f frequency_to_tune_to [Hz]"
  .IP "-s samplerate (default: 2048000 Hz)"
  .IP "-d device_index (default: 0)"
  .IP "-g gain (default: 0 for auto)"
  .IP "-p ppm_error (default: 0)"
  .IP "-b output_block_size (default: 16 * 16384)"
  .IP "-n number of samples to read (default: 0, infinite)"
  .IP "-S force sync output (default: async)"
  .IP tfilename
   (a '-' dumps samples to stdout)
  .SH EXAMPLES
  .IP "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
  .LP
  to record samples to a file or to forward the data to a fifo.
  .LP
  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).
  .SH SEE ALSO
  gnuradio(1)
  .LP
  RTL-SDR wiki documentation:
  .B http://sdr.osmocom.org/trac/wiki/rtl-sdr
  .LP
  Other rtl-sdr programs:
  .sp
  rtl_adsb(1), rtl_eeprom(1), rtl_fm(1), rtl_power(1), rtl_tcp(1), rtl_test(1)
  .SH AUTHOR
  This manual page was written by Maitland Bottoms
  for the Debian project (but may be used by others).
  .SH COPYRIGHT
  Copyright (c) 2013 A. Maitland Bottoms <bottoms@debian.org>
  .LP
  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.
  .LP
  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.