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3850029
RF Frequencies
Description
Map that descrip
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rf frequencies
Mind Map by
Mohammed AbdAlla3586
, updated more than 1 year ago
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Created by
Mohammed AbdAlla3586
almost 9 years ago
5
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Resource summary
RF Frequencies
Very low Frequency
3 KHZ to 3MHZ
VLF,LF,MF,
Very long-range communication (ships at sea, and so forth), commercial AM radio. Ground waves circle the Earth.
High frequency
3 to 30 MHz
HF
Over-the-horizon communication, Signals reflect from ionosphere.
Very high frequency
30 to 300 MHz
VHF
Mobile communication, TV, and commercial FM radio. Line-of-sight required.
Ultra high frequency
300 HZ to 1 GH
UHF
Mobile communication and TV. Line-of-sight required.
Microwave
1 to 30 GHz
MH
TV and telephone links, satellite links. Line-of-sight required.
Millimeter wave:
30 to 100 GHz
MMW
Very short-range communication. Requires line-of-sight, high absorption in rain and fog.
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