Vayudoot Aviation

1. An apparent increase in the transmitted frequency which is proportional to the transmitter velocity will occur when

The transmitter moves towards the receiver

Both transmitter and receiver move towards each other

The receiver moves towards the transmitter

The transmitter moves away from the receiver

2. The Doppler Navigation System is based on

Phase comparison from ground station transmissions.

Based on Radar principle using this F2 (frequency shift)

Doppler VOR(DVOR) Navigation System.

Radio waves refraction in the ionosphere.

3. Due to 'Doppler' effect an apparent decrease in the transmitted frequency, which is proportional to the transmitter's velocity, will occur when

The transmitter moves away from the receiver.

The transmitter moves toward the receiver.

The transmitter and receiver move towards each other.

Both transmitter and receiver move away from each other.

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