Well chaps, there's good news and there's bad news.
The good news is; I have stumbled upon some actual performance data for you, done in a real-life test with real xMax equipment. Yey! The bad news is; umm, sorry, Bobier was ~wrong~. xMax is just ~nothing special~. It works, sure, but (according to people who know) its performance is 15 years out of date. Ouch! There's two websites below with the data. They are tests done in Florida with the xDrive system. The first one shows two tests done 13/3/08 and 11/3/08, you can play with the settings - a figure of 34 is required for acceptable voice, and you have to plug in the antenna location to get proper readings. On the second site, the setting required are shown as 34(signal strength) 29.30(latitude) -81.1127(longitude) 1(antenna sector). I don't have the second antenna location for site 1. The second site shows pins all over the 'Birds Eye' view of the tests area. Passing your mouse over the pins shows the signal strength.
http://www.wirelessexpressions.com/xdrive.aspx
http://www.wirelessexpressions.com/virtualearth.aspx
Aside from showing xMax's radio performance is 15 years out of date, the tests don't actually show how well an xMax system would work in real life. It's probable that performance is even worse that 15 years out of date because these tests don't include any interference. xMax is meant to work in unlicensed spectrum so *will* be subject to interference. "But", says Mr Raustovitch, "What about the Wavelet Pass Filter - the 'Key to xMax' according to Bobier - which means xMax can bypass interference?" Well have a look HERE just to remind yourself. It can't.

What we have now with all the changes highlighted by the FCC tests is something quite different to xMax. Something new. Something regular. Something pedestrian. Something that could work. Let's call it "newMax". Raustovitch: Sorry mate. They've offered a brand new rocket-powered Lamborghini to entice you in, and switched it for a 15 year-old Ford Mondeo and hoped you wouldn't notice.