Having fun with a reflector

A project log for The Field Field Kit

Measuring the EM field with a line of code.

nicolasnicolas 07/03/2020 at 10:040 Comments

During the school's STEAM summer camp, we played with a radio, a reflector and the Field Field Kit.

First impression
Transferred power depends on distance

Adding a reflector
Adding a reflector

The radio transmits at around 440 MHz (wavelength 70 cm band). The reflector acts as a mirror and the inteference appears to be constructive or destructive depending  the distance from the antenna (we didn't measure the distance). When the reflector is very close to the antenna, the transferred power falls drastically, although one would expect the interference to be constructive: it's as if the reflector absorbs the signal.