Provided by: rtl-sdr_0. bug


       rtl_test - a benchmark tool for RTL2832 based DVB-T receivers


       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.

       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.


       rtl_test [OPTIONS]


       -s samplerate (default: 2048000 Hz)

       -d device_index (default: 0)

       -t enable Elonics E4000 tuner benchmark]

       -p enable PPM error measurement

       -b output_block_size (default: 16 * 16384)

       -S force sync output (default: async)


       To check the possible tuning range (may heavily vary by some MHz depending on  device  and
       temperature), call
               rtl_test -t

       To check the maximum samplerate possible on your machine, type (change the rate down until
       no sample loss occurs):
               rtl_test -s 3.2e6

       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.


       RTL-SDR wiki documentation:

       Other rtl-sdr programs:

       rtl_adsb(1), rtl_eeprom(1), rtl_fm(1), rtl_sdr(1), rtl_tcp(1)


       This manual page was written by Maitland Bottoms for the Debian project (but may  be  used
       by others).


       Copyright (c) 2013 A. Maitland Bottoms <>

       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.