1FM(1)                       General Commands Manual                      FM(1)
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NAME

6       fmscan - scan FM band for radio stations
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SYNOPSIS

9       fm  [ -h ] [ -d device ] [ -t tuner ] [ -s freq ] [ -e freq ] [ -i freq
10       ] [ -q ]
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DESCRIPTION

13       fmscan is a program to scan a frequency band for radio stations,  using
14       the video4linux interface introduced in 2.1.x series Linux kernels.  It
15       shows which ones have a accumulated signal strength of 50% or higher.
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17   OPTIONS
18       -h     Print a usage message to standard output, and exit.
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20       -d device
21              Sets device as the device to tune.  The default is /dev/radio0.
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23       -t tuner
24              Sets tuner as the tuner on the selected device to  adjust.   The
25              default  is  tuner  0.   Most  radio  devices have only a single
26              tuner.
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28       -s freq
29              Starting frequency for scan, in MHz.  Default: 87.9.
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31       -e freq
32              Ending frequency for scan, in MHz.  Default: 107.9.
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34       -i freq
35              Increment between scanned channels, in MHz.  Default: 0.2.
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37       -t percent
38              Signal strength threshold to consider a channel.  Default: 50%.
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40       -q     Quiet mode.  Suppresses progress output.
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BUGS

43       This process can take a while, and results vary  greatly  depending  on
44       the  radio  card  in use.  If your card's hardware cannot report signal
45       strength, it will not produce useful results.
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47       This program may not do much if your radio card's driver  doesn't  sup‐
48       port fine tuning in 1/16000 MHz offsets.  By default, V4L2 assumes 1/16
49       MHz tuning units, which introduces evil rounding errors  on  many  fre‐
50       quencies.
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52       Supports only tuner 0 on any given device.
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SEE ALSO

55       Additional documentation:
56              /usr/doc/fmtools/README
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58       The fmtools homepage:
59              http://benpfaff.org/fmtools
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AUTHORS

62       Russell  Kroll  <rkroll@exploits.org>,  now  maintained  by  Ben  Pfaff
63       <blp@cs.stanford.edu.>. This manpage written by Ben Pfaff.
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67                                 fmscan 1.0.2                            FM(1)