The RF Meter HF35C uses both visual display and audio. The number that appears on the meter's display tells you only that there is or is not an RF problem: The higher the number, the more significant the problem. To determine what is causing the problem, you listen to the sound and use this to identify the source. Each source has a different sound. To help you identify the sound, listed below are sample sounds for different sources. Click on each one to listen to the sounds.
Smart meter Cell phone in use Bluetooth-enabled cell phone Cordless phone Internet router and modem Laptop computer Microwave oven Videogame
