Run netstumbler on windows 7

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Often we notice that the wifi signal of our WLAN network is weak or, in some moments, it is best received by our network card or USB adapter seems almost non-existent in others, providing the error screen " limited connectivity ". Kernel32 is the recommended com interface since it supports both x32 and x If that interface does not work you can try CommMG which should also work with x32 and x64 but is slightly less stable.

Some people have gotten it to work with x64 Adding APs to the top of the list is slower. If you have a built in sensor that uses the windows location platform you may be able to use a tool like 'Centrafuse Localizer' to create a virtual com port that vistumbler can use.

What signal level should I consider usable for a good wireless link? Posted in FAQ by mariusm. I get asked this question rather too often, so I'm posting my short answer here.

The answer is rather more complex than it ought to be, and depends on a huge number of factors. The most important is the receive sensitivity of your equipment. Many manufacturers fail to publish this data, but those that do will generally rate their radios by dBm at various data rates.

Any less and it is likely to drop to one of the lower rates; if you get as low as dBm then the connection may drop altogether. As I mentioned before, many manufacturers do not quote their receive sensitiviy for their adapters; if you have one of these, I suggest picking a conservative figure such as dBm at 11 Mbps, which is the number for the Belkin F5D The signal level you receive in an unobstructed environment depends on the transmitter power, the gain of the two antennas involved, and the distance between them, as well as any loss between the antenna and the radio at each end.

In practice, radio waves behave unpredictably in a number of ways. First, the signal will fade out due to multipath effects radio waves that bounce off objects and increase or decrease the signal that you receive. The further the receiver is from the transmitter, and the more objects between them, the higher this effect will be. In a typical home or small office environment without too many obstructions, a 10dB variation in signal level is quite normal.

So, if you are looking at a NetStumbler scan and the signal is consistently around dBm, it could drop to dBm when somebody comes over to talk to you. Another factor is noise. This is "background" radio-frequency junk that your receiver can "hear" but needs to reject. Sources of noise include other wireless networks, cordless phones, microwave ovens, radio hams, medical equipment, Like other radio phenomena, noise may be highly variable.