1FM(1)                       General Commands Manual                      FM(1)
2
3
4

NAME

6       fmscan - scan FM band for radio stations
7

SYNOPSIS

9       fm [ -h ] [ -d device ] [ -s freq ] [ -e freq ] [ -i freq ]
10

DESCRIPTION

12       fmscan  is a program to scan a frequency band for radio stations, using
13       the video4linux interface introduced in 2.1.x series Linux kernels.  It
14       shows which ones have a accumulated signal strength of 50% or higher.
15
16   OPTIONS
17       -h     Print a usage message to standard output, and exit.
18
19       -d device
20              Sets device as the device to tune.  The default is /dev/radio0.
21
22       -s freq
23              Starting frequency for scan, in MHz.  Default: 87.9.
24
25       -e freq
26              Ending frequency for scan, in MHz.  Default: 107.9.
27
28       -i freq
29              Increment between scanned channels, in MHz.  Default: 0.2.
30
31       -t percent
32              Signal strength threshold to consider a channel.  Default: 50%.
33

BUGS

35       This  process  can  take a while, and results vary greatly depending on
36       the radio card in use.  If your card's hardware  cannot  report  signal
37       strength, it will not produce useful results.
38
39       This  program  may not do much if your radio card's driver doesn't sup‐
40       port fine tuning in 1/16000 MHz offsets.  By default, v4l assumes  1/16
41       MHz  tuning  units,  which introduces evil rounding errors on many fre‐
42       quencies.  If in doubt,  grep  for  VIDEO_TUNER_LOW  in  your  driver's
43       source.
44
45       Supports only tuner 0 on any given device.
46

SEE ALSO

48       Additional documentation:
49              /usr/doc/fmtools/README
50
51       The fmtools homepage:
52              http://www.exploits.org/v4l/fmtools.html
53
54       The video4linux webpage:
55              http://roadrunner.swansea.uk.linux.org/v4l.shtml
56

AUTHORS

58       Russell  Kroll  <rkroll@exploits.org>,  now  maintained  by  Ben  Pfaff
59       <blp@cs.stanford.edu.>. This manpage written by Ben Pfaff.
60
61
62
63                                 fmscan 1.0.2                            FM(1)
Impressum