Radio sondes high-frequency transmitter - has transistor oscillator, stabilised with coaxial resonator, located in cable which rotates on outer tube end (SF 28.2.79)

摘要

The high frequency transmitter is used in radiosondes, in which there is a transistor oscillator stabilised with a co-axial resonator (10). The components of the oscillator are installed in a gable part (20) that is attached, and rotates on the end of the outer tube (11) of the coaxial resonator (10). The tightness with which the high frequency is interconnected with the coaxial resonator is arranged to be adjusted by the rotative movement (A) of the gable part (20).