Software to turn the RTL2832U into a SDR receiver
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rtl-sdr/debian/rtl_tcp.1

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.TH "rtl_tcp" 1 "0.5.0" RTL-SDR "User Commands"
.SH NAME
rtl_tcp \- an I/Q spectrum server for RTL2832 based DVB-T receivers
.SH DESCRIPTION
Uses a re-purposed DVB-T receiver as a software defined
radio to receive and send I/Q data via TCP network to another
demodulation, decoding or logging apllication. 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 USAGE
Run this program on a machine with an rtl-sdr supported
device connected and it will provide I/Q data to other applications
via TCP/IP.
.SH SYNOPSIS
.B rtl_tcp [OPTIONS]
.SH OPTIONS
.IP "-a listen address"
.IP "-p listen port (default: 1234)"
.IP "-f frequency to tune to [Hz]"
.IP "-g gain (default: 0 for auto)"
.IP "-s samplerate in Hz (default: 2048000 Hz)"
.IP "-b number of buffers (default: 32, set by library)"
.IP "-n max number of linked list buffers to keep (default: 500)"
.IP "-d device_index (default: 0)"
.IP "-P ppm_error (default: 0)"
.SH Example:
.IP "rtl_tcp -a 10.0.0.2 [-p listen port (default: 1234)]"
Found 1 device(s).
Found Elonics E4000 tuner
Using Generic RTL2832U (e.g. hama nano)
Tuned to 100000000 Hz.
listening...
.LP
Use the device argument 'rtl_tcp=10.0.0.2:1234' in OsmoSDR (gr-osmosdr) source
to receive samples in GRC and control rtl_tcp parameters (frequency, gain, ...).
.LP
use the rtl_tcp=... device argument in gr-osmosdr source to receive
the samples in GRC and control the rtl settings remotely.
.LP
This application has been successfully crosscompiled for ARM and MIPS
devices and is providing IQ data in a networked ADS-B setup at a rate
of 2.4MSps. The gr-osmosdr source is being used together with an
optimized gr-air-modes version (see Known Apps below). It is also
available as a package in OpenWRT.
.LP
A use case is described https://sites.google.com/site/embrtlsdr/
.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_sdr(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.