What is a stated use of TTF?

• A. To calibrate antenna gain
• B. To save power consumption and prevent frequency collision
• C. To encrypt communications
• D. To extend satellite lifetime

Answer: (B)

The idea behind TTF is to manage when a transmitter is active so you can use less power and avoid stepping on someone else’s use of the same spectrum. By scheduling transmission windows and limiting how long the transmitter stays on, you reduce overall power draw and lower the chance of frequency collisions with other users or channels sharing the band. This makes the system more energy-efficient and spectrum-friendly, which is why saving power and preventing frequency collisions is the stated use.

Calibrating antenna gain is typically a measurement or adjustment process done to characterize or tune the antenna, not a primary function of timing-based transmission control. Encrypting communications concerns security, not how a transmitter is timed or how power is conserved. Extending satellite lifetime is a broad result that can come from many design choices; the specific, stated use of TTF is about efficient power use and interference avoidance through timing, not a general longevity goal.