Found a cool little free wireless network scanner the other day that runs on Windows Mobile 5 (WM5) called WiFiFoFum. I’ve got it running on my i-mate JASJAM PDA phone at the moment and have been scanning the local wifi networks in my neighbourhood.
It can scan almost constantly (I’ve got mine running on a 1,000 ms rescan) and will display all the networks in a spreadsheet with SSID, signal strength, WEP on or off, type of node and some other figures.
Also I found an explanation for the RSSI (signal strength) values that WiFiFoFum displays - basically anything above -70 is good.
Would be nice if it could indicate CTD (Clear To Send) flag, and I’m a bit dubious of the radar display mode - but otherwise very cool, very useful (for someone planning to roll-out a large scale wifi mesh network). And there are a lot of wireless networks in our neighbourhood. About 20 in the distance from my house to the bus stop. Some of them are even open!
All I have to do is convince them all to piggy back a Meraki off their network …