Posts tagged ‘Field Strength Meter’

Teardown of a GM3120 Electromagnetic Radiation Tester

There are a lot of cheap electromagnetic radiation testers out there which boast some quite impressive claims. So I decided to pick up a popular one (GM3120) from eBay to see how well it works. And perhaps more importantly, I wanted to take a look inside to see how the E field and H field sensing is done. Continue reading ‘Teardown of a GM3120 Electromagnetic Radiation Tester’ »

Wide-band RF Field Strength Meter

Field strength meter is extremely useful when working with RF devices. It can be used to quickly diagnose whether a transmitter circuit is working, and can be used to detect RF signals in the environment. Continue reading ‘Wide-band RF Field Strength Meter’ »