.TH "rtl_test" 1 "0.5.0" RTL-SDR "User Commands"
  .SH NAME
  rtl_test \- a benchmark tool for RTL2832 based DVB-T receivers
  .SH DESCRIPTION
  Test tuning range and functional sample rates of your device
  on your system.
  Uses a re-purposed DVB-T receiver as a software defined
  radio. Written for and incorporated into the osmocom rtl-sdr project.
  .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 SYNOPSIS
  .B  rtl_test [OPTIONS]
  .SH OPTIONS
  .IP "-s samplerate (default: 2048000 Hz)"
  .IP "-d device_index (default: 0)"
  .IP "-t enable Elonics E4000 tuner benchmark]"
  .IP "-p enable PPM error measurement"
  .IP "-b output_block_size (default: 16 * 16384)"
  .IP "-S force sync output (default: async)"
  .SH EXAMPLES
  .IP "To check the possible tuning range (may heavily vary by some MHz depending on device and temperature), call"
   rtl_test -t
  .IP "To check the maximum samplerate possible on your machine, type (change the rate down until no sample loss occurs):"
   rtl_test -s 3.2e6
  .LP
  A samplerate of 2.4e6 is known to work even over tcp connections (see
  rtl_tcp above). A sample rate of 2.88e6 may work without lost samples
  but this may depend on your PC/Laptop's host interface.
  .SH SEE ALSO
  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_sdr(1), rtl_tcp(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.