VHF and UHF Communication in the Monterey Bay

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Presentation transcript:

VHF and UHF Communication in the Monterey Bay LT Rich Davidson

Research Find the maximum path available and then go back and analyze the meteorological conditions.

Motivation Experience as Communications Officer on US Navy Ship VHF/UHF Comms are a necessary means when communicating with other ships/aircraft.

Communication Parameters Transmitter Antenna Power Receiver Sensitivity

VHF/UHF Propagation Direct Path (LOS) * Tropospheric Ducting (Sometimes OTH) * Hadley Cell Meteor Scatter Earth Moon Earth (EME) Lightning Storms

Meteorological Measurements Sondes and more sondes!

The Good, The Bad and The Math

Duct Types

More Math

Pictorial Representation

References Martin, A. L. (2007). VHF and Microwave Progpagation Characteristics of Ducts. http://www.df5ai.net/ArticlesDL/VK3KAQDucts2007V3.5.pdf

QUESTIONS?