i have seen these Wifi Plus Wisper 360 antennas 2 years ago and i was shocked. http://www.wifi-plus.com/antennas/wisperantennasystems.html
the deal is, they claim to perform as NLOS and obstruction penetrating.
they have some tests made by themselves but actually there is not enough satisfactory technical data available on the net.
The antennas are hand-made, scary looking and guess what.. 10dB each !!
Have anyone used these antennas before ?
We are considering to buy a few to be used with RB with XR2 but need some feedback.
thanks