ACMA FM polarisation & pattern nomenclature...

Jan 04, 2012 2 Replies

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Jeßus 14 years ago

Just a quick question, some of you may save me some time -

Was looking for polarisation & pattern info on a local FM station in this pdf:

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For polarisation, 'V' and 'H' is clear to me - but what is 'M' both V&H perhaps?

Patterns are all 'OD', again I'm not 100% certain but presumably this is omnidirectional?

Thanks for any clarification.

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Phil Allison 14 years ago

"Jeßus"

** M = mixed polarisation.

Used to be called " circular polarisation " but that is a bit of a misnomer.

** OD = omnidirectional, usually only in a narrow horizontal plane.

It is assumed that all listeners are terrestrial.

... Phil

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Jeßus 14 years ago

Thanks very much for the clarification Phil, most appreciated.

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