[aprssig] Balloons, Ham Radio and APRS in UK
KC2MMI (Jared) kc2mmi at verizon.netMon Apr 24 17:13:43 UTC 2006
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Ken- <<By way of comparison, here in the USA it is illegal per FCC to utilize a cellphone in any aircraft while aloft. >> I think that has changed. AFAIK the current situation is that the FCC no longer bans the use, but it allows the FAA to control air traffic matters, and only the FAA ban is currently in effect for aircraft use of cell phones. (And the FAA in turn allows airlines and pilots further ability to also ban what the FAA have allowed.) The FAA has been made aware that interference issues on aircraft probably don't exist, and they are actively discussing deploying "pico" cells on aircraft which would control cell phones on the aircraft, forcing them to lowest power, and relaying the calls out. This would ensure good connections--and allow the airlines to charge extra for the use of cell phones. Which is apparently the real issue, if the airlines can make a profit they'll ensure it happens. Apparently there are other issues with the cell phone system, i.e. the problem of resolving one call that "arrives" in too many towers, or towers that are too distant (latentcy timing issues) and someone "in the business" had mentioned that systems now may use signal timing to exclude phones more than 32(?) miles from a tower, solving that technical issue.
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