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Marker beacons operate at a carrier frequency of ________

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Marker beacons operate at a carrier frequency of ________

(a) 75 MHz

(b) 75 Hz

(c) 750 MHz

(d) 75 Hz

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Enquiry is from Aviation Communication Systems in chapter Aviation Communication Systems of Aircraft Maintenance

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The correct option is (a) 75 MHz

For explanation: The marker beacons operate at a carrier frequency of 75 MHz. The beacons transmit signals which in turn activate an indicator on the flight deck instrument panel. This further enables the pilot to hear the tone of the beacon.

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