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#1
July 24th 03, 02:31 PM
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"Viperdoc" wrote in
: Does anyone know how to tell if the Traffic Information System uplinked by Mode S is in service or not? My Garmin 530/ GTX 330 says "traffic unavailable" and passes all of the diagnostics, but when I called ATC and flight service they said Mode S was operational. Mode-S is needed, but Mode-S is not TIS. Unfortunately, the problem you are having seems to be wide spread and random. I have heard other pilots with the exact same gripe (TIS just randomly comes and goes for months at the time). Aviation Consumer magazine did an article on it recently. They ran into the same problem - when it would not work, no one at ATC could tell them if the system was up or down. A number of times their inquiries were met with blank stares of "What's TIS?" ----------------------------------------------- James M. Knox TriSoft ph 512-385-0316 1109-A Shady Lane fax 512-366-4331 Austin, Tx 78721 ----------------------------------------------- 
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