Message posted by Hank on May 08, 2006 at 11:08:41 PST:
Somtimes: Tonopah Test Rage XSD beacon (278kHz) and sectional chart indicating the location The other reason for using XSD as the ICAO has to do with the DOD nomenclature of ATI (Air Terminal Identifier). Most of the time, the ATI and ICAO are the same, other than the prefix "K" that is used with US ICAOs, i.e. TKM should really be KTKM. Here is the official entry for the Tonopah Test Range:
Copied from Lazy Ranch website
The proper ICAOcode for the Tonopah Test Range is TNX. At least that is what shows up on flight plans. [Groom Lake often uses the same ICAO code of TNX, though you can tell which base is correct given on the rest of the flight plane. Flights to the TTR will approach from the north, using the civilian Tonopah airport with ICAO code TPH. Occasionally Groom Lake uses the code TKM instead of TNX.] Some databases use the code XSD for the Tonopah Test Range. There are two documentable reasons for this. One, a NDB (non-directional beacon) XSD was installed just outside the border of the base, where SD probably stands for Sandia. This NDB is no longer licensed nor appears on current aircraft sectional charts, but it is still operable.
In Reply to: Re: KTKM? posted by time on May 08, 2006 at 9:10:20 PST:
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