xMax developed by xG Technology is a wireless communications technology whose developers claim is low power and provides a high data rate over a distance of about 13 miles.

“A fundamental paradigm shift in the way radio signals are modulated and demodulated.”

Developed by xG Technology in Florida Rather than transmitting many RF cycles for each bit of data to be sent, xMax does it in a single RF cycle.

Power is saved not only in the transmission, but because receivers will only recognize single-cycle waveforms, power isn't wasted on un-intended RF signals

xG President of Operations Joe Bobier invented xMax and has this to say of his discovery "It just occurred to me that the least amount of radio energy I could have is one photon — one wavelength — and the least amount of data I could have is one bit. It just struck me that there was a correlation there."

Some current specifications

• Antenna: One omnidirectional transmitter located on TV broadcast tower at a height of 850 feet;

• Range: 20 miles, covering the cities of Miami and Fort Lauderdale, including inside buildings (see map).

• Data rate: At least 10 Mb/s throughout the coverage area.

• Spectrum used: A 6 kHz carrier on dedicated spectrum and 10 MHz of information-bearing spread spectrum in the unlicensed 900 MHz band.

• Interference: None, despite the presence of a TV transmitter on the same tower.

• Power: A maximum of 50 W for the carrier and less than 0.15 W for the information-bearing channels.

See also

• Shannon-Hartley_theorem
• WiMax

External links

• xMax FAQ from xg Technology
• TechWorld.com – xMax sparks low power wireless revolution
• MRT Magazine Features xMax - Too good to be true?
• New Technology Could Kill WiMax?
• Joseph A. Bobier's Vision Statement about his brain child xMax