VDF

#2. Class ‘B' VHF DF bearings are accurate to within:

• A+ - 1°
• B+ - 5°
• C+ - 2°
• D+ - 10°

#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 ?

• A115nm
• B400nm
• C143nm
• D63.5nm

#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?

• A190'
• B1,378'
• C36,100'
• D84,100'