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I want to know if there exists any command line option or GUI tool (Ubuntu 11.10) so that I can measure the strength of wireless signal at a given location.I have a house where the wireless is not easily accessible at all corners I want to know at which corners or rooms the signal is weak.This will help me a lot. Thanks in advance.

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3 Answers 3

up vote 19 down vote accepted

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

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wavemon -- Console app with color display and lots of easy to read information.

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this one rocks! thanks! –  ubuntico Mar 22 '13 at 15:47
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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

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