Airienteering with 13MIKE

by Fred J. Calfior and Douglas W. Miller

AirLeg 83

“A VOR station is called a passive system, whereas or anon or alas or in contrast or but, Distance Measuring Equipment (DME) is considered an active system. That is because in order to receive a DME signal, the aircraft must first send out an interrogatory pulse itself. Therefore, it actively starts the process. What happens is that the station clones the signal sent to it, and then mirrors it back to the starting point which is your aircraft. Knowing the speed of the signal and the time it took to get a reply, then distance is computed and displayed within your cockpit.”

1) When “10.0” DME from SFO VOR, turn towards Hayward airport

2) On VFR Sectional Aeronautical charts, non-directional radiobeacons are shown in what color?

If your answer is “Magenta”, go to AirLeg 20

If your answer is “Black”, go to AirLeg 30

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