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Wireless bridge
- Subject: Wireless bridge
- From: charles at thewybles.com (Charles Wyble)
- Date: Thu, 18 Jun 2009 10:16:20 -0700
- In-reply-to: <[email protected]>
- References: <005c01c9f015$852ae490$8f80adb0$@com> <[email protected]> <09ef01c9f02d$221f21f0$665d65d0$@com> <[email protected]>
>
> 2.4 and 5GHz license-free Wifi is license free because the frequencies
> are shared with the ISM (Industrial/Scientific/Medical) services. In an
> industrial area, competing WiFi is the least of your worries. These
> frequencies are also used by industrial grade heating units. Got anyone
> in the neighbourhood running a large plastic shrink wrap machine, for
> example?
Good point.
>
> You can't directly detect these other users with a Wifi transceiver.
> Depending on the nature of the interference you *might* be able to hear
> it directly on a scanner (if you can find one that covers those
> frequencies), but you really need a good spectrum analyzer to tell
> what's going on.
Check out http://www.ubnt.com/airview/ for a decent one. There is also
wispy.