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xMax(TM) First Long-Range Field Test A Success - New Spectrum Sharing Technology Uses Micro-Power Levels to Deliver BroadbandFor Immediate Release May 13th, 2005 CONTACT: Charlie Meisch 202 785 2100 Chris Whiteley 954 572 0395 Tim Ayers 202 857 9734 SARASOTA, FL – xG(TM) Technology, LLC moved its promising spectrum sharing technology out of the lab and into the field, successfully conducting its first long-range wireless tests of xMax – a novel radio frequency (RF) signaling technique that represents an entirely new approach to the problem of spectrum overcrowding. Using only a VHF paging channel and negligible power in adjacent sidebands, an xMax transmitter and receiver pair with ground level antennas delivered data to the xMax receiver over a mile away. Ground level testing presents an extraordinary challenge: the signal must travel through buildings and other obstacles without significant loss or distortion - a feat that more common microwave-based wireless broadband techniques have difficulty achieving. Transmitting at .0005 Watts, xMax was able to demonstrate range orders of magnitude farther than other broadband technologies such as Wi-Fi. By comparison, typical performance of a Wi-Fi 802.11 hotspot at 1 Watt (or 2,000 times more power than xMax) using ground level antennas is approximately 300ft under similar non-line of sight (NLOS) conditions. “Demonstrating that broadband wireless communications can occur at such micro-power levels in the presence of interfering signals overturns long-held industry ideas,” said Joe Bobier, President of xG Technology, LLC and inventor of the technology. “What is really exciting, however, is that xMax’ unique signal profile is a perfect fit for low frequency channels that have been previously unsuitable for wireless broadband.” Later this year, xG will release reference designs for sub-Gigahertz fixed wireless base stations and customer premise equipment (CPE) based on current working prototypes that could outstrip the capabilities of technologies like WiMAX. About xMax Unlike other wireless technologies that move as much power as possible from the carrier into the information-bearing sidebands, xMax does just the opposite, placing more than 99 percent of its power within a narrowband carrier while keeping its sideband energy at micro-power levels. Typically –60dB to –100dB below the carrier, xMax’ unique information-bearing sideband, dubbed xG Flash SignalTM, can be as much as 100,000 times below the Federal Communication Commission’s (FCC) “Part 15” regulations. Lower frequencies – located below one Gigahertz on the spectrum – are well known by communications engineers to outperform higher frequencies. The performance shortfall is so stark that it can take 25-50 times more towers to wirelessly cover a given area using Gigahertz frequencies. The problem, however, has been that lower frequencies have been divided into small segments for thousands of disparate uses. This overcrowding of the lower spectrum has left wireless broadband service providers with no other option than to shift to higher frequencies — accepting a hefty price/performance penalty. xMax is set to change all of that by enabling wireless broadband at sub-Gigahertz frequencies. xMax only requires a narrow segment of unoccupied spectrum in order to place its carrier signal, while its proprietary xG Flash Signal is sent at such unusually low power levels that it can operate far below the point of impacting other systems, essentially allowing it to share spectrum with existing users. “The success of this test confirms what we’ve always believed,” said Rick Mooers, Executive Chairman of xG Technology. “xMax is likely to be an equation-changer in the wireless and wireline telecom industries.” xMax is already making waves within the engineering community. Dr. Stuart Schwartz, Princeton University engineering professor and IEEE fellow, has stated: “xG technology can deliver broadband speeds with a remarkably efficient use of the radio spectrum. It is a technology that has the potential for a major impact on the area of wireless communications.” xG’s FCC counsel, Hal Mordkofsky, believes that xMax may impact communications policy in similarly profound ways. “One of the biggest problems facing the Federal Communications Commission is the increasing shortage of the usable frequency spectrum. The long-term solution may very well be xMax, which makes far more efficient use of the frequency spectrum than has ever been possible.” #### Pioneering innovation in telecommunications research, xG Technology has developed xMax – a groundbreaking radio frequency (RF) modulation and encoding technology that enables faster, farther, and cheaper communications. xMax takes high-speed communications “beyond broadband” and is suitable for both wireline and wireless networks. Privately held, xG Technology is based in Sarasota, Florida (USA). www.xgtechnology.com |