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Airborne Emergency Communications Node Technical Approaches

Airborne Emergency Communications Node Technical Approaches. National Conference on Emergency Communications December 12-13, 2005 Dr. Chris Hawkins Chief Technologist of Unmanned Systems Northrop Grumman Corporation. High-Level Requirements for Airborne Relays.

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332 views • 16 slides

1. A wave passes every 0.0125 seconds. What is the frequency with which waves pass? (80.0 Hz)

1. A wave passes every 0.0125 seconds. What is the frequency with which waves pass? (80.0 Hz). 2. Middle C is 261.6 Hz. What is its period? (0.00382 s). 3. What is the frequency of a wave that has a period of 0.10 seconds? (10. Hz).

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358 views • 15 slides

Alex John Myer was the radio station manager hosting this very special commercial broadcasting

1912: The 1st radio act assigns three-and-four letter codes to radio stations and limits broadcasting to the 360m wavelength . 1920 The first commercial radio broadcast was transmitted on a Pittsburgh Westinghouse station called KDKA.

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269 views • 7 slides

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M wavelength - PowerPoint PPT Presentation

Airborne Emergency Communications Node Technical Approaches

1. A wave passes every 0.0125 seconds. What is the frequency with which waves pass? (80.0 Hz)

Alex John Myer was the radio station manager hosting this very special commercial broadcasting