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#1. An aircraft has to communicate with a VHF station at a range of 300 nm, if the ground station is situated 2,500′ amsl which of the following is the lowest altitude at which contact is likely to be made?
#2. Class ‘B’ VHF DF bearings are accurate to within:
There are four classifications of accuracy for VHF direction finding: A, B, C and D, which correspond to accuracies of 2°, 5°, 10° and greater than 10° respectively.
#3. An aircraft at altitude 9,000 feet wishes to communicate with a VHF/DF station that is situated at 400 feet amsl. What is the maximum range at which contact is likely to be made ?
#4. A VDF QDM given without an accuracy classification may be assumed to be accurate to within:
#5. An aircraft is passed a true bearing from a VDF station of 353°. If variation is 8°E and the bearing is classified as ‘B’ then the:
QTE- Aircraft’s True Bearing from the station; used for en-route navigation.
VDF measures the bearing of the aircraft with reference to True or Magnetic North at the station.
Variation is applied to the station and not aircraft
hence qte is 353° And class b suggests plus minus 5°
#6. An aircraft at 19,000ft wishes to communicate with a VDF station at 1,400ft amsl. What is the maximum range at which contact is likely ?
