Quote:
Originally Posted by eharlow
That's an old rumor on flashing your headlights....at least now days. The flash rate frequency is ultra fast...almost so fast you don't see it flashing. Edmond has recently been upgrading their receivers to where they'll only change for emitters with serial numbers that the City of Edmond has programmed into the system. Apparently there were some wreckers with opticoms running around Edmond and changing the lights for the direction they were traveling.
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They're encoded so unless you have the right codes or a special test code you won't be able to trip them. There are several possible combinations so it would be difficult for the casual hobbyist to hack them. The transmitter is a short pulse Xenon flashtube to get the long range distances. They slap an IR filter over some versions (for undercover LEO cars) to make them less visible. The fire engines I've seen with Opticom transmitters just have a Xenon flashtibe with a reflector in a chrome housing. In normal operation they look just like another strobe flasher.
GTO_04