Linux Command to check Wifi Noise Ratio

By | September 15, 2009

WiFi networks are subjected to noise. When ever the noise ration is high, systems connected with Wifi will experience high connetivity issue. Inorder to check the connection stability run the following command on Linux,

# iwlist scan

lo Interface doesn’t support scanning.

eth1 Scan completed :

[…]

Cell 02 – Address: 00:14:7F:A1:B3:A1

ESSID:”BTHomeHub-267B”

Protocol:IEEE 802.11bg

Mode:Master

Channel:7

Frequency:2.442 GHz (Channel 7)

Encryption key:on

Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s

11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s

48 Mb/s; 54 Mb/s

Quality=85/100 Signal level=-64 dBm Noise level=-69 dBm

Extra: Last beacon: 103ms ago

[…]

Cheers!

Melbin Mathew

www.talk2melbin.com

Melbin Mathew

I am Melbin Mathew, Systems Engineer from Kerala, India. I live with my parents, daughter and my wonderful wife. I graduated in 2004 with a bachelor’s degree in Electronics and Hardware from Mahatma Gandhi University, Kottayam and completed certification in MCITP, RHCE, CCNA, VCP ...Read More
Category: Linux

About Melbin Mathew

I am Melbin Mathew, Systems Engineer from Kerala, India. I live with my parents, daughter and my wonderful wife. I graduated in 2004 with a bachelor’s degree in Electronics and Hardware from Mahatma Gandhi University, Kottayam and completed certification in MCITP, RHCE, CCNA, VCP ...Read More