DME

#1. Airborne DME equipment is able to discriminate between pulses intended for itself and pulses intended for other aircraft because:

• Aaircraft transmit and receive on different frequencies.
• Baircraft will only accept unique twin pulses.
• Caircraft reject pulses not synchronised with its own random pulse recurrence rate.
• Deach aircraft has its own frequency allocation.

#2. A DME beacon having a transmit frequency of 962 MHz would have a receive frequency of:

• A1030 Mhz
• B902 Mhz
• C1025 Mhz
• D962 Mhz

#3. A VOR/DME share the same first two letters of their respective identifiers; the last identifying letter of the DME is a Z. This means that:

• Athey are co-located.
• Bthey are more than 600m apart but serve the same location.
• Cthey are widely separated and do not serve the same location.
• Dthey are a maximum distance of 30m apart.