Magnetic loop antennas are great if you are limited on space since they are just a potentially small loop of wire. The problem is, they are sharply tuned. You normally have an adjustment capacitor to ...

The author is a consultant in Carterton, New Zealand. This follows up his December article “Tuned Bandpass Filter Is Solution to Backup STL.” Many years ago, the active whip antenna and the active ...

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 fading ...

In our previous column we discussed Ron Schacht’s inexpensive EAS receiver idea. Now I hear from Ken Beckwith that he is building and selling antennas to feed your EAS receiver. We shared a ...

The purpose of this article is to explain, in detail, the process involved in building and tuning a high-frequency (HF) RFID antenna, which would operate at 13.56 MHz. Some concepts will be explained ...

THE ANTENNA. This crucial component of any radio transmitting or receiving system has a history that actually predates the invention of radio itself. The first antennas were used by Princeton ...

Does the Mohu or Amazon HDTV antenna have an adapter for AM/FM. I live almost halfway between Columbus and Cleveland and get almost no radio stations. Would like to have the Digital TV antenna mainly ...