---
name: "sigmon"
section: "1"
platform: "linux"
package: "comgt"
version: "0.32-6"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/sigmon"
---

# sigmon(1)

Vodafone 3G/GPRS datacard signal strength monitor

## 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.