1. VHF and UHF Communication in the Monterey Bay
LT Rich Davidson

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

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

5. Communication Parameters
Transmitter
Antenna
Power
Receiver
Sensitivity

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

7. Meteorological Measurements
Sondes and more sondes!

8. The Good, The Bad and The Math

9. Duct Types

10. More Math

11. Pictorial Representation

12. References
Martin, A. L. (2007). VHF and Microwave Progpagation Characteristics of Ducts.

13. QUESTIONS?