Amateur Radio made in Italy
Co-Phasing Co-phasing or “stacking” has long been a way to get high gain from antennas. Co-phasing involves placing two (or more!) identical antennas either side-by-side or one over top another (“stacking”) at a certain distance apart (usually a 1/2 Wavelength or more) and feeding the antennas in-phase. The result is 3 db more than just…
Circular Polarization Circular Polarization is a relatively untalked about subject on 11 Meters, perhaps this is the first time you have ever heard of such a thing. Most antennas are oriented to produce linear polarization – either horizontal or vertical polarization. Sometimes, a creative CBer will turn their beam at a 45 degree angle, half-way…
Omnidirectional Antennas “Omnidirectional” is generic term for an antenna that radiates equally well in all directions. There are several antennas that are considered omnidirectional. 1/2 Wavelength Vertical Most folks lump all vertical omnidirectional antennas into the same category and call them “Ground Planes”. A ground plane antenna is actually an antenna similar to the vertical…
Coax Cables Most CB and HAM radio operators use coaxial (coax) cable to feed their antenna. Another name for the cable you use to hook your radio to your antenna is “feed line”. Feed line is a generic term for all types of cable including coax. Coax has been around for a long time and…
Antenna Basics Radio Waves Radio energy waves are waves of energy that are similar to light waves. In fact signals (radio waves) travel through the air at the speed of light. To understand how an antenna works you must first have a basic idea of the makeup of a radio wave. A radio wave can…
The Cubical Quad Antenna. A great article about homebrewing a cubical quad antenna
Article by W2BRI After many requests by Ben W4KSY*, someone I consider to be my loop mentor, I decided to post a page about my 80 meter magnetic loop. The idea for this loop began with my purchase of a new vertical antenna. Now when you think of 26 feet of antenna, it doesn’t seem…
Looking for Yamaha CM500 replacements ear pads. Yamaha looks like not distributing parts, so here is a solution to find some equivalent parts in the market
A tri band dx wire antenna easy to build and very effective
If you have ever tried transmitting on HF from a tall block of apartments, where it’s just not possible to erect a substantial aerial system, then this article is for YOU!