[Tech Minds] built one of those cheap automatic antenna tuners you see everywhere — this one scaled up to 350 watt capability. The kit is mostly built, but you do have to add the connectors and a few ...

Something that all radio amateurs encounter sooner or later is the subject of impedance matching. If you’d like to make sure all that power is transferred from your transmitter into the antenna and ...

A so-called random wire antenna is an end fed antenna. One end goes straight into the rig, often with no feedline, and the other end in the air attached to something as high as you can find, as ...