Readers responded to my article comparing indoor TV antennas—some with questions, some just with comments (Comparing Antennas for Indoor Reception, September 2018). I welcome these as they give me a ...

In my last column I described measurements I made on some indoor TV antennas. The “Spectrum Spy” software and Airspy SDR I used for those measurements can also be used as part of a very portable, ...

The circuit was aimed to measure the variation in magnetic and electric fields by designing an electromagnetic probe with a headphone socket and an output meter. Electromagnetic Field (EMF) – a ...

When Scotty is beaming up, he’s working in the very far field. Distinguishing between near field and far field conditions is especially important in EMC testing. Published antenna factors and related ...