Demonstrates: Propagation and polarization in EM waves.
Description: The signal generator puts out a 433.92 MHz UHF frequency (69 cm) which
is radiated via a half-wavelength dipole. A small light bulb is
connected to a half-wavelength dipole to illustrate received power.
The receiver can be picked up and moved around to show the falloff in
power with distance, and the radiated beam pattern. The receiver can
also be rotated 90 degrees to show how the radiation is polarized.
Various wire grids and solid plates (metal, glass, plastic) can be
inserted between the transmitter and receiver. And there is a dipole
inside a water tank which can be used to show the change in wavelength
when an EM wave is made to propagate through water. Good predictive
demo.
Instructions: Set up on a cart in RH 103.Function Generator required for modulation of the transmitted wave. Set function generator to 1 Khz and 10 VPP.
