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Installation
I have tested
Scanmeter in several different configurations. If none matches your
hardware that's OK. Pick the closest one and modify the script if
necessary.
Dell Mini 9,
Ubuntu 8.4 w/Broadcom card and wl driver (factory configuration)
Dell Mini 9,
Ubuntu 8.4 w/Intel 3945ABG card and iwl3945 driver
Debian
w/Broadcom PCMCIA card and b43 driver (2.6.32 trunk-686)
Debian
w/Broadcom PCMCIA card and b43 driver (older kernel)
If you're new to
bash scripts do this:
- Download
and unpack the script to your /home/yourname directory.
- Open a
terminal window and type:
cd
/home/yourname
chmod 777
scanmeter
There are better
places to save a bash script like /usr/local/bin for example. Look up
a tutorial on saving and executing bash scripts for more information.
Scanmeter
Usage
Scanmeter must
be executed by the root user. This is done inside a terminal window:
- cd
/home/yourname (navigate to the location of the script)
- sudo
./scanmeter [interface]
 The
default
interface is wlan0 except for the Dell Mini 9 factory WiFi card version
which defaults to eth1. Your WiFi card could also default to eth1 or
another
device name. To find out the device name of your wireless card
execute:
iwconfig
If you saved the
script in /usr/local/sbin or added the custom location path to the
PATH environment variable (slightly advanced), your Scanmeter can be
executed by typing: sudo scanmeter
[interface]
Scanmeter is
very self explanatory. Make sure you use all caps when typing in the
BSSID (MAC Address). Press CTRL+C to exit the histogram. Pressing
enter in the main menu prompt will restart scanning with the last
entered BSSID.
Debugging
Scanmeter parses
the output of Linux command:
sudo iwlist
interface scanning
The
physical formatting of the iwlist command output depends on the
wireless chipset, the driver and possibly the Linux distro. For this
reason you may have to make minimal adjustments to the script to make
it work. Similar Software
Check out Pifimon which is a Perl script inspired by Scanmeter (and improved). If you improve scanmeter or make similar tools let me know please.
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