fmscan - scan FM band for radio stations
] [ -d device
] [ -t tuner
] [ -e freq
] [ -i freq
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.
- Print a usage message to standard output, and exit.
- -d device
- Sets device as the device to tune. The default is
- -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
- -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:
- -t percent
- Signal strength threshold to consider a channel. Default:
- Quiet mode. Suppresses progress output.
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.
- Additional documentation:
- The fmtools homepage:
Russell Kroll <firstname.lastname@example.org>, now maintained by Ben Pfaff
<email@example.com.>. This manpage written by Ben Pfaff.