Compensation: This TCXO module guarantees precise frequency accuracy for your FT817/857, even in varying conditions, delivering reliable performance through extreme weather changes. Enhanced Stability: Designed to remain unaffected by variations that would impact conventional crystals, this 22.625 MHz TCXO module provides a consistent frequency output for amateur competitions. Simple Installation: Featuring a straightforward design, this compensated crystal module allows easy replacement of the original component without requiring additional settings. Exceptional Accuracy: With an accuracy level of up to 0.5 PPM, this TCXO module offers stable performance for outdoor adventures and critical communication needs. Field use scenario: Portable field operation with FT817/857 in variable climates to maintain reliable communication links. Contest use scenario: Amateur radio contests requiring stable, repeatable frequency output. Outdoor/critical comms scenario: Outdoor expeditions or emergency communications needing dependable oscillator stability during temperature changes.