Equipment set for conducting wave optics experiments involving wavelengths in the cm range. A transmitter with a horn antenna radiates a narrow beam of linearly polarised electromagnetic waves with a wavelength of about 3 cm. The direction of polarisation can be altered by rotating the antenna around the axis of propagation. To detect the waves, a horn antenna receiver and a microwave sensor are provided. A control unit converts the intensity of the signal received into a proportionally large output voltage that can be measured using a voltmeter. It is also possible to switch on an acoustic signal with a volume that is proportional to the intensity of the signal.

Experiment topics include straight-line propagation of microwaves, reflection, absorption and transmission, shielding from microwaves, experiments on polarisation, experiments on diffraction, experiments on refraction and interference, and transmission of information.

• Oscillator frequency: 9.4 GHz
• Power of transmitter: 10 – 25 mW
• Internal modulator frequency: 3 kHz approx.
• Acoustic signal: Switchable
• External modulation: 100 Hz –20 kHz, 1 V max.
• Output voltage: 10 V max.
• Receiver with horn antenna: Silicon diode with resonator
• Microwave sensor: Silicon diode with resonator
• Dimensions of basic apparatus: approx. 170 x 200 x 75 mm³
• Contents: 1 Control unit, 1 Transmitter with horn antenna, 1 Receiver with horn antenna, 1 Microwave probe, 1 Mikrowave bench, 800 mm, 1 Microwave bench, 400 mm with plate holder, 1 Reflection plate 180x180 mm², 1 Polarisation grating, 180x180 mm², 1 Absorption plate, fibreboard, 180x180 mm², 1 Paraffin prism, 1 Stand for prism, 1 Plate with double slit, 1 Cover plate for double slit