A Simple RF Radiation Detector
ou can get a simple RF radiation detector right in the greeting card section of your favorite) are poorly shielded. When a card detects RF, it starts playing music and the LEDs start flashing. It can be initiated with a small handie-talkie. If you put your HT on some unused frequency (don’t use 146.52, 446.000 MHz or any repeater frequencies) and key the transmitter, you will find the card most sensitive to your frequency.
