emi

First post, hopefully I chose the right category. Am doing FT8 and using an Alpha HOA to load the gutter for my antenna. Have made some good DX QSOs and have a near 1:1 SWR after tuning. Was getting some parisitic vibrations in parts of the house, lots of aluminum trim coil outside. Now I...

Hello, I am doing an engineering project that requires the approximate radio-frequency interference ranges (or spectrum) given off by typical power line insulators used by utility companies. I want to know what the spectrum is and who it affects. One would think this information is readily...

Hi all, Another Noob Here, I am studying for my Tech level Ham, in the mean time I'm working on a receive issue in Sauk County near Baraboo. I have three problems that I am facing just on reception. T.V. Free broadcast Digital Wireless Internet all Scannable frequencies in my kitchen as well...