What is the frequency range of an aircraft's radio altimeter?

What is the frequency range of an aircraft's radio altimeter?

• A. 4000 MHz to 4200 MHz
• B. 4250 MHz to 4350 MHz
• C. 4500 MHz to 4600 MHz
• D. 4100 MHz to 4400 MHz

Answer: (B)

The frequency range of an aircraft's radio altimeter is specifically designated to operate within the range of 4250 MHz to 4350 MHz. This frequency allocation is chosen for its ability to provide accurate altitude readings by measuring the time taken for radio waves to reflect off the ground and return to the aircraft. In aviation, radio altimeters play a crucial role in low altitude operations, especially during approaches and landings, where knowing the exact height above ground level is vital for safety. Operating within this designated frequency range helps to reduce interference with other systems and ensures reliability in varying environmental conditions. Understanding the correct frequency range is important for pilots and aviation technicians as it ensures compliance with regulations and facilitates proper functioning of altimeter equipment during flight operations.

The frequency range of an aircraft's radio altimeter is specifically designated to operate within the range of 4250 MHz to 4350 MHz. This frequency allocation is chosen for its ability to provide accurate altitude readings by measuring the time taken for radio waves to reflect off the ground and return to the aircraft.

In aviation, radio altimeters play a crucial role in low altitude operations, especially during approaches and landings, where knowing the exact height above ground level is vital for safety. Operating within this designated frequency range helps to reduce interference with other systems and ensures reliability in varying environmental conditions.

Understanding the correct frequency range is important for pilots and aviation technicians as it ensures compliance with regulations and facilitates proper functioning of altimeter equipment during flight operations.