mirror of
https://github.com/rtlsdrblog/rtl-sdr-blog.git
synced 2024-11-10 04:37:37 +01:00
8a26abaf79
This allows (among others) to build rtl-sdr nightly packages for a variety of distributions as part of the network:osmocom:nightly builds
177 lines
5.0 KiB
Groff
177 lines
5.0 KiB
Groff
.TH rtl_power: "1" "0.5.1" RTL_SDR "User Commands"
|
|
.SH NAME
|
|
rtl_power: \- wideband spectrum monitor utility
|
|
.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.
|
|
.SH USAGE
|
|
rtl_power, a simple FFT logger for RTL2832 based DVB\-T receivers
|
|
.PP
|
|
This tool gathers signal data over a very wide area of the frequency spectrum,
|
|
and then that data can be used to find active areas of the spectrum.
|
|
.PP
|
|
Use: rtl_power \fB\-f\fR freq_range [\-options] [filename]
|
|
.HP
|
|
\fB\-f\fR lower:upper:bin_size [Hz]
|
|
.IP
|
|
(bin size is a maximum, smaller more convenient bins
|
|
.TP
|
|
will be used.
|
|
valid range 1Hz \- 2.8MHz)
|
|
.IP
|
|
[\-i integration_interval (default: 10 seconds)]
|
|
.IP
|
|
(buggy if a full sweep takes longer than the interval)
|
|
.IP
|
|
[\-1 enables single\-shot mode (default: off)]
|
|
[\-e exit_timer (default: off/0)]
|
|
[\-d device_index (default: 0)]
|
|
[\-g tuner_gain (default: automatic)]
|
|
[\-p ppm_error (default: 0)]
|
|
filename (a '\-' dumps samples to stdout)
|
|
.IP
|
|
(omitting the filename also uses stdout)
|
|
.SS "Experimental options:"
|
|
.IP
|
|
[\-w window (default: rectangle)]
|
|
.IP
|
|
(hamming, blackman, blackman\-harris, hann\-poisson, bartlett, youssef)
|
|
.IP
|
|
[\-c crop_percent (default: 0%, recommended: 20%\-50%)]
|
|
.IP
|
|
(discards data at the edges, 100% discards everything)
|
|
(has no effect for bins larger than 1MHz)
|
|
.IP
|
|
[\-F fir_size (default: disabled)]
|
|
.IP
|
|
(enables low\-leakage downsample filter,
|
|
.TP
|
|
fir_size can be 0 or 9.
|
|
0 has bad roll off,
|
|
.IP
|
|
try with '\-c 50%')
|
|
.IP
|
|
[\-P enables peak hold (default: off)]
|
|
[\-D enable direct sampling (default: off)]
|
|
[\-O enable offset tuning (default: off)]
|
|
.SS "CSV FFT output columns:"
|
|
.IP
|
|
date, time, Hz low, Hz high, Hz step, samples, dbm, dbm, ...
|
|
.SH EXAMPLES
|
|
.IP
|
|
rtl_power \fB\-f\fR 88M:108M:125k fm_stations.csv
|
|
.IP
|
|
(creates 160 bins across the FM band,
|
|
.IP
|
|
individual stations should be visible)
|
|
.IP
|
|
rtl_power \fB\-f\fR 100M:1G:1M \fB\-i\fR 5m \fB\-1\fR survey.csv
|
|
.IP
|
|
(a five minute low res scan of nearly everything)
|
|
.IP
|
|
rtl_power \fB\-f\fR ... \fB\-i\fR 15m \fB\-1\fR log.csv
|
|
.IP
|
|
(integrate for 15 minutes and exit afterwards)
|
|
.IP
|
|
rtl_power \fB\-f\fR ... \fB\-e\fR 1h | gzip > log.csv.gz
|
|
.IP
|
|
(collect data for one hour and compress it on the fly)
|
|
.SS "Convert CSV to a waterfall graphic with:"
|
|
.IP
|
|
http://kmkeen.com/tmp/heatmap.py.txt
|
|
.PP
|
|
rtl_power, a simple FFT logger for RTL2832 based DVB\-T receivers
|
|
.PP
|
|
Use: rtl_power \fB\-f\fR freq_range [\-options] [filename]
|
|
.HP
|
|
\fB\-f\fR lower:upper:bin_size [Hz]
|
|
.IP
|
|
(bin size is a maximum, smaller more convenient bins
|
|
.TP
|
|
will be used.
|
|
valid range 1Hz \- 2.8MHz)
|
|
.IP
|
|
[\-i integration_interval (default: 10 seconds)]
|
|
.IP
|
|
(buggy if a full sweep takes longer than the interval)
|
|
.IP
|
|
[\-1 enables single\-shot mode (default: off)]
|
|
[\-e exit_timer (default: off/0)]
|
|
[\-d device_index (default: 0)]
|
|
[\-g tuner_gain (default: automatic)]
|
|
[\-p ppm_error (default: 0)]
|
|
filename (a '\-' dumps samples to stdout)
|
|
.IP
|
|
(omitting the filename also uses stdout)
|
|
.SS "Experimental options:"
|
|
.IP
|
|
[\-w window (default: rectangle)]
|
|
.IP
|
|
(hamming, blackman, blackman\-harris, hann\-poisson, bartlett, youssef)
|
|
.IP
|
|
[\-c crop_percent (default: 0%, recommended: 20%\-50%)]
|
|
.IP
|
|
(discards data at the edges, 100% discards everything)
|
|
(has no effect for bins larger than 1MHz)
|
|
.IP
|
|
[\-F fir_size (default: disabled)]
|
|
.IP
|
|
(enables low\-leakage downsample filter,
|
|
.TP
|
|
fir_size can be 0 or 9.
|
|
0 has bad roll off,
|
|
.IP
|
|
try with '\-c 50%')
|
|
.IP
|
|
[\-P enables peak hold (default: off)]
|
|
[\-D enable direct sampling (default: off)]
|
|
[\-O enable offset tuning (default: off)]
|
|
.SS "CSV FFT output columns:"
|
|
.IP
|
|
date, time, Hz low, Hz high, Hz step, samples, dbm, dbm, ...
|
|
.IP
|
|
rtl_power \fB\-f\fR 88M:108M:125k fm_stations.csv
|
|
.IP
|
|
(creates 160 bins across the FM band,
|
|
.IP
|
|
individual stations should be visible)
|
|
.IP
|
|
rtl_power \fB\-f\fR 100M:1G:1M \fB\-i\fR 5m \fB\-1\fR survey.csv
|
|
.IP
|
|
(a five minute low res scan of nearly everything)
|
|
.IP
|
|
rtl_power \fB\-f\fR ... \fB\-i\fR 15m \fB\-1\fR log.csv
|
|
.IP
|
|
(integrate for 15 minutes and exit afterwards)
|
|
.IP
|
|
rtl_power \fB\-f\fR ... \fB\-e\fR 1h | gzip > log.csv.gz
|
|
.IP
|
|
(collect data for one hour and compress it on the fly)
|
|
.SS "Convert CSV to a waterfall graphic with:"
|
|
.IP
|
|
http://kmkeen.com/tmp/heatmap.py.txt
|
|
.SH "SEE ALSO"
|
|
.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_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.
|