"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
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
Compact Size, light weight
Wideband operation without need for adjustment
Ground independent operation
Outstanding front-to-side ratio
Ease of Construction, and simple single feed line control for data
Portability for DX-peditions, quick deploy operations, field day
operations, emergency operations
Easily remote controlled with the Shacklan - 4 USB interface
to your PC or a Ethernet Everywhere device.