DOPPLER

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

• AThe transmitter moves away from the receiver
• BThe transmitter moves towards the receiver
• CThe receiver moves towards the transmitter
• DBoth transmitter and receiver move towards each other

#2. The Doppler Navigation System is based on:

• ARadio waves refraction in the ionosphere.
• BDoppler VOR(DVOR) Navigation System.
• CPhase comparison from ground station transmissions.
• DBased on Radar principle using this F2 (frequency shift)

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

• AThe transmitter moves away from the receiver.
• BThe transmitter and receiver move towards each other.
• CThe transmitter moves toward the receiver.
• DBoth transmitter and receiver move away from each other.