Which control keeps your flight radio configurations intact when power is momentarily interrupted during flight?

• A. Standby
• B. Thru-Flight Button
• C. Reset
• D. Power Save

Answer: (B)

When a power drop happens in flight, you don’t want the radio to forget your saved setup—like frequencies, channels, and display preferences. The Thru-Flight Button is designed to keep those configurations intact during a momentary interruption by maintaining the memory state through the interruption. That way, when power returns, the radio comes back up with the same settings without needing reprogramming. Other controls don’t specifically guarantee preservation of the full configuration: Standby doesn’t ensure all settings are kept, Reset clears the stored data, and Power Save focuses on reducing power use rather than safeguarding memory.