Quiz 2

4. It is the randomly varying space between the pulse-pairs sent by the interrogator in a DME system.
6. a type of system that compare the phase difference between two continuous signals
7. In this DME mode, the DME displays shows four dashes to indicate no computed data.
10. navigation system which refers to a class of navigation systems based on the difference in timing between the reception of two signals, without reference to a common clock.
13. acronym of a system that calculate the time difference between two radio pulses.
14. _____ range is the straight-line distance from the aircraft to the ground station.
16. a type of system that compare the phase difference between two continuous signals
18. He invented DME navigation system.

1. the intersection of the hyperbolic curves which identifies the position of the aircraft.
2. ______ speed is the horizontal speed of an aircraft relative to the ground.
3. If pulse-pairs from any station are not received after a short period of time, the interrogator goes into _______ mode, whereby distance is calculated from the most recently received pulse-pairs.
5. In a DME system, the _____ transmits on a center frequency of 1025 to 1150 MHz.
8. He proposed an aircraft homing device using a GRID system of hyperbolic curves known as GEE.
9. one of LORAN limitations is that area of coverage are limited to _____ only. It doesn’t guarantee global coverage.
11. Transmission frequencies were in the 200 to 410 kHz range.
12. In this mode, distance to the ground station will now be showed on the DME indicator.
15. In this mode, the transmitter broadcasts the maximum number of pulse pairs until it receives a specific number of reply pulses.
17. Type of antenna used in LFRR.
18. acronym of a system that calculate the time difference between two radio pulses.