sigmon(1) General Commands Manual sigmon(1)NAME
sigmon - Vodafone 3G/GPRS datacard signal strength monitor
SYNOPSIS
sigmon -?
OPTIONS
-?
gives brief usage details
DESCRIPTION
sigmon is a command line tool for monitoring the signal strength seen by a Vodafone 3G/GPRS datacard. Once started, it queries the datacard
for the signal strength and displays it every 5 seconds. Use Ctrl/C to stop the signal strength display and exit from sigmon
BUGS
sigmon is a simple script that assumes that the third port of the datacard is /dev/ttyUSB2. If the datacard is not the first USB device
registered the script must be modified to correct the port name. Read /var/log/messages to find the correct port name.
DEPENDENCIES
sigmon requires comgt to be installed so that it appears in the current search path when sigmon is run.
22 January, 2005 sigmon(1)
Check Out this Related Man Page
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)