Last month I wrote some about making a notch filter for the AM band. However, before you have any signals to notch out, you must first, of course, have some signal to begin with. Let’s talk a little ...

The loop antenna is a proven design. There are commercially produced models available, but, depending on the use, it is sometimes hard to justify the cost of the antenna. What follows is a copy of a ...

While we can’t argue that FM has superior audio quality and digital streaming allows even higher quality in addition to worldwide access, there’s still something magic about hearing a weak and ...