SAL-30

 SAL_30 Shared Apex Loop Array: A Wideband Directional Receiving Antenna for 500 KHz - 30 MHz

Effective communication on the LW, MW, and SW bands requires more than just a careful ear. You need the right gear to navigate through the jungle of interference that can be as close as your computer, or as distant as a thunderstorm on the other side of the globe. Interference, though isn't just a challenge for DX'ers - it's a challenge for net operators, rag chewers and county hunters too, military operations - in other words, it is a challenge to all of us!

We have developed a new type of receiving antenna that delivers exceptional directivity in a small package and is useable over a wide range of frequencies without need for adjustment. This new antenna is called the Shared Apex Loop Array antenna and it opens the door to a new class of compact, high performance, wideband receiving antennas developed for both amateur and professional users.

The antenna operates on the true-time-delay principle rather than the more traditional phased array methods. This method of operation enables outstanding bandwidth. For example, a 18 foot tall, 18 foot radius array can provide outstanding front-to-side and good front-to-back performance for continuous frequency coverage below 500 KHz to 16 MHz with good sensitivity above 1.8 MHz! A 10 foot tall, ten foot radius array provides continuous frequency coverage between 500 KHz to 22 MHz with good sensitivity above 5 MHz.

The patented and additional patent pending designs provides the following benefits: