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When the frequency decreases below _____ frequency, the signal reception becomes too weak and the Noise increases.

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When the frequency decreases below _____ frequency, the signal reception becomes too weak and the Noise increases.

(a) MUF

(b) LUF

(c) Optimum frequency

(d) Critical frequency

This question was addressed to me in a national level competition.

I want to ask this question from Critical Frequency topic in division Virtual Height, Critical Frequency and Muf of Antennas

1 Answer

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Best answer
The correct option is (b) LUF

Explanation: When the frequency is lowered below the lowest usable frequency, the signal gets absorbed. At low frequencies the noise level is also more and signal reception will be also difficult.

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