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What is the pulse frequency used in Loran?

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What is the pulse frequency used in Loran?

(a) 120MHz

(b) 150MHz

(c) 100kHz

(d) 1000MHz

The question was posed to me in an online interview.

The origin of the question is Hyperbolic Radio Systems in division Terrestrial Radio Navigation System of Avionics

1 Answer

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The correct option is (c) 100kHz

To elaborate: Each station transmits signals that have standard pulse leading edge characteristics. Each pulse consists of a 100kHz that rapidly increases in amplitude in a prescribed manner and then decays at a rate that depends on the particular transmitter.

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