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Unread 11-01-2004, 12:40
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Re: InfraRed = gps ?

Quote:
Originally Posted by mightywombat
how will you tell which emitter it is tracking though? they won't emit the same signals?
Both emitters are sending out a 40KHz carrier frequency. The difference is that a "type-0" beacon has a 1ms envelope, while the "type-1" beacon has a 2ms envelope. The duration of the envelope is what determines the type of beacon.

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