PROPAGATION

#5. The maximum range an aircraft at 2500 ft can communicate with a VHF station at 196 ft is:

• A80 nm
• B64 nm
• C52 nm
• D65 nm

#1. The process which causes the reduction in signal strength as range from a transmitter increases is known as:

• Aabsorption
• Bdiffraction
• Cattenuation
• Dionisation

#2. Which of the following will give the greatest surface wave range?

• A243 MHz
• B500 kHz
• C2182 khz
• D15 MHz