Share a WiFi tool on a mobile phone

These days a new start to a HTC Desire HD mobile phone, the joy of playing, suddenly found a very good WiFi tools, can not help but share with you.

Wifi Analyzer (#Android # Mobile version)

Download link

Https://market.android.com/details?id=com.farproc.wifi.analyzer

What's the use of this thing?

First, it can be used to search for nearby WiFi signals. (This feature is available in many apps, such as WiFi scanner or WiFi Manager, but this software can show strong signal strength, channel, encryption, MAC address, etc.) details. ）

Second, it can be used to determine the channel (Channel) used by the nearby WiFi base station, so as to correctly set up the channel of its own WiFi device to avoid signal collisions and improve network performance.

Finally, it can help companies to capture illegal WiFi base stations.

How did you do that?

This view lists the SSID, MAC, channel, encryption, and signal strength of nearby wireless hotspots. The intensity of the signal is expressed in dbm, and the larger the number (because it is negative, so-50 is larger than-80) to indicate that the signal is stronger.

The above view graphically shows the channel overlap of each wifi hotspot visually. WiFi channel from Channel 1 to channel 14, each signal occupies different spectrum range, the same channel signal completely overlapping, adjacent channel signals will overlap, each signal span is about 5 channels. If the spectrum of the 2 signals overlap, 2 signals will interfere with each other, resulting in a decline in the quality of the signal, the intuitive feeling is that the speed slows. Full overlap is a serious disturbance, and part of the overlap is partially disturbed.