A tool to measure signal strength of wireless
On the command line you can use iwconfig
and look for "Link Quality" and "Signal level" values.
When walking around with a netbook I often use this command which updates the output of iwconfig every second:
watch -n1 iwconfig
wavemon
A console app with color display and lots of easy to read information.
To install it enter the following commands:
sudo apt-get update
sudo apt-get install wavemon
To run it enter:
wavemon
A prettier one:
watch -n1 "awk 'NR==3 {print \"WiFi Signal Strength = \" \$3 \"00 %\"}''' /proc/net/wireless"
Source: http://www.upubuntu.com/2012/06/display-wifi-signal-strength-in-real.html