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In which of the following bands the horn antenna operates?

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In which of the following bands the horn antenna operates?

(a) HF and VHF

(b) UHF and LF

(c) UHF and SHF

(d) LF and VHF

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This interesting question is from Principles topic in division Horn Antenna of Antennas

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Correct answer is (c) UHF and SHF

For explanation I would say: Horn antenna is used in the frequency range 300MHz to 30GHZ. So, it is used in UHF and SHF frequency bands.

HF- VHF: 3MHz to 300MHz

LF-UHF: 30kHz to 3GHz

LF-VHF: 30kHz to 300MHz

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