3 cm. microwave klystron oscillator with cavity and waveguides.

3 cm. microwave klystron oscillator with cavity and waveguides. In the 'A' transmitter setup , a klystron produces 3 cm. microwaves. There is a tuneable cavity which adjusts the position of the potential nodes and antinodes in the waveguide. A moveable detector on the waveguide can detect the waveguide potential variations (using a milliameter, or the Speaker unit in set-up 'B'). Microwaves from 'A' radiate out and are detected by the receiver of set-up 'B'. The waveguide has a plunger that can be moved forward and backward to tune the cavity. In the 'C' setup, 3 cm. microwaves are funneled into the horn down into the cylindrical cavity, where standing waves are formed. The receiver is moveable, producing different modes (E and H )and standing wave patterns. The detector is moveable and detects the potential variations in the waveguide.