Investigation of a portable real time radiation mapper

The naked eye is capable of perceiving electromagnetic radiation in a narrow band of frequencies, known as the optical spectrum. Working with low energy radiation outside the optical spectrum presents distinct difficulties, requiring the use of apparatus to measure invisible and intangible electromagnetic radiation. The apparatus, incorporating a Wiimote, and associated method are presented for a small, easily maintained and operated, low cost system for the characterisation of practical RF radiation sources in the microwave and millimetre-wave frequency bands.