Coordination with GPS L3


The Global Positioning Satellite system has a mode, "L3" at 1381 MHz, which is used for global alarm. If it is within your observing band, then all astronomical signal gets swamped. With advanced notice, the observatory is in a position to alert the responsible authorities and request rescheduling GPS L3 transmission.


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Page Updated by: William Genter 03/23/2005 12:24:39