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Unknown Yagi antenna

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telxonmaster

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Here in Springfield Missouri, our local utility company uses these antennas on equipment connected to their natural gas lines. I'm assuming it's for some type of telemetry or SCADA type setup.
Does anyone have any guesses as to frequency range it would be using? (I'd guess 800 MHz band?)
for a size reference, the pipe it's attached to is about 1 1/2" diameter. The whole antenna is probably about 1 foot long.

Thanks for any input!,
Will
 

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telxonmaster

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Springfield does have a 800MHz trunked system, and City Utilities uses it for dispatching crews to power outages, etc, so maybe they are running their data on it too. I think that's quite possible with trunked systems.
 

majoco

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Oooh, a data antenna? Do they look different to any other sort of modulation? Perhaps the ones are at the the top and the zeros at the bottom...
 

WayneH

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Springfield does have a 800MHz trunked system, and City Utilities uses it for dispatching crews to power outages, etc, so maybe they are running their data on it too. I think that's quite possible with trunked systems.
If you hear a TG with just data then it's a possibility. A TG would have to be setup though (I don't see any true P25 trunked systems for Springfield, which could do it in the background and would not need a TG).
 
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