FM(1)							      General Commands Manual							     FM(1)

NAME

       fmscan - scan FM band for radio stations

SYNOPSIS

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

DESCRIPTION

       fmscan  is a program to scan a frequency band for radio stations, using the video4linux interface introduced in 2.1.x series Linux kernels.
       It shows which ones have a accumulated signal strength of 50% or higher.

   OPTIONS
       -h     Print a usage message to standard output, and exit.

       -d device
	      Sets device as the device to tune.  The default is /dev/radio0.

       -t tuner
	      Sets tuner as the tuner on the selected device to adjust.  The default is tuner 0.  Most radio devices have only a single tuner.

       -s freq
	      Starting frequency for scan, in MHz.  Default: 87.9.

       -e freq
	      Ending frequency for scan, in MHz.  Default: 107.9.

       -i freq
	      Increment between scanned channels, in MHz.  Default: 0.2.

       -t percent
	      Signal strength threshold to consider a channel.	Default: 50%.

       -q     Quiet mode.  Suppresses progress output.

BUGS

       This process can take a while, and results vary greatly depending on the radio card in use.  If your card's hardware cannot  report  signal
       strength, it will not produce useful results.

       This program may not do much if your radio card's driver doesn't support fine tuning in 1/16000 MHz offsets.  By default, V4L2 assumes 1/16
       MHz tuning units, which introduces evil rounding errors on many frequencies.

       Supports only tuner 0 on any given device.

SEE ALSO

       Additional documentation:
	      /usr/doc/fmtools/README

       The fmtools homepage:
	      http://benpfaff.org/fmtools

AUTHORS

       Russell Kroll <rkroll@exploits.org>, now maintained by Ben Pfaff <blp@cs.stanford.edu.>. This manpage written by Ben Pfaff.

								   fmscan 1.0.2 							     FM(1)