Hf communication - PowerPoint PPT Presentation

Ebro Observatory, October 1st, 2013

New Technology involved in SWING: Software Radio and HF Links. A.L. Saverino A.Capria , F.Berizzi , M . Martorella, E. Dalle Mese. Ebro Observatory, October 1st, 2013. With the support of the Prevention, Preparedness and Consequence Management

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305 views • 14 slides

HF Multi-hop Network for Emergency Communication

HF Multi-hop Network for Emergency Communication. There are Maximum Useful Frequency (MUF) and lower Absorption Frequency (ALF) bounds for communication between tow terminals. HF communication is dependent on: 1- Frequency 2- Range or path length 3- Antenna elevation angle

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464 views • 13 slides

Global Space Weather Coordination: Perspectives and Activities

Global Space Weather Coordination: Perspectives and Activities. Dr. Jack Hayes, U.S. Permanent Representative to the WMO, Assistant Administrator for Weather Services and Director, National Weather Service. Outline. Our Increasing Vulnerability to Space Weather

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240 views • 13 slides

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