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The Brighton Express uses pre-WiMax gear to achieve 60 miles of coverage at 100 mph: Peter Judge reports from the London-to-Brighton line that although coverage is yet contiguous—that’s still to come—the service offers seamless performance across each base station zone by relaying Wi-Fi in the carriages to WiMax base stations along the route. T-Mobile is involved in this unwiring—which was carried out by Nomad Digital—and is offering the service at no charge while they tune the system.
The estimate is that the 37 802.16d-based Redline devices will need to be increased to 60, or a density of about one per mile, to provide complete coverage. The limit on speed right now is the ADSL backhaul of 2 Mbps per base station. The service switches to GPRS when out of range of WiMax bonding three GPRS devices. Only one train out of 15 is equipped so far.
T-Mobile will charge £5 per hour or £13 per day for service starting in June.
Posted by Glennf at April 15, 2005 1:14 AM
Categories: trains, planes, and automobiles
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