man fmscan (Commandes) - scan FM band for radio stations

NAME

fmscan - scan FM band for radio stations

SYNOPSIS

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

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. This process can take a while, and results vary greatly depending on the radio card in use.

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.
-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%.

BUGS

This program may not do much if your radio card's driver doesn't support fine tuning in 1/16000 MHz offsets. By default, v4l assumes 1/16 MHz tuning units, which introduces evil rounding errors on many frequencies. If in doubt, grep for VIDEO_TUNER_LOW in your driver's source.

Supports only tuner 0 on any given device.

SEE ALSO

Additional documentation:
/usr/doc/fmtools/README
The fmtools homepage:
http://www.exploits.org/v4l/fmtools.html
The video4linux webpage:
http://roadrunner.swansea.uk.linux.org/v4l.shtml

AUTHORS

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