Module 2 Signals Presentation
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Introduction to Signals
The point of communication is the pass information: sounds, pictures and data, from a sender to a recipient. Radio Transmitters
modulates RF
with that information producing
signals
that radio receivers use to reproduce that information.
Aspects of Signals
Amplitude
Frequency
Wavelength and Bands
Period
Fundamental and Harmonics
For the license exam....
You need to know:
The terms frequency and wavelength, and how the relate
Speed of light: 300,000km/sec or 186,000 mi/sec
The frequencies and wavelength of the bands: MF,HF, VHF and UHF
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