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interference around 455mhz

CSU · 2015-01-19 13:37:22

...anyone know what this could be in Dublin? It completely wipes everything from ~450mhz - 460mhz 1.jpg

19-01-2015 1:37pm

#1

CSU

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...anyone know what this could be in Dublin?

It completely wipes everything from ~450mhz - 460mhz
1.jpg

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#2 28-04-2015 7:57pm

I swindled the NSA

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Isint there TETRA (Encrypted digital system -used by emergency services) around this part of the spectrum in Ireland ?

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#3 29-04-2015 4:29pm

Fred Swanson

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This post has been deleted.

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#4 29-04-2015 5:12pm

martinsvi

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tetra is around 380-390

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#5 29-04-2015 8:56pm

watty

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m = milli = 1/1000th. There ARE things that resonate at milli Hz mHz.
M = Mega

OK, I'll go back to sleep.

It could be anything. You'd even need a professional bit of gear to to be sure it's not a spurious signal. A Group A yagi would give enough response to take bearings on it from different locations and plot source.

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#6 29-04-2015 9:48pm

Jakey Rolling

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I have used navigation systems (Syledis) in the past that worked in the 430-450MHz band. We also used similar frequencies for relaying position info from the tail end of seismic streamers, and transmission of Real Time Kinematic data for GPS surveying.

100412.2526@compuserve.com

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