“The Quad Antenna uses a single, central-fed frame with a feeder-line. Therefore you must use an ATU for operating this antenna. Excellent would be a “Z-Match”, a 1-KW-Tuner will be described on another page.
The reflector has one loop for each band, self-resonant without stubs.
The first DK7ZB-Quad was introduced in 1995 and contented a mistake and had not the best performance. In 2000 the Quad was optimized for 1-Lambda reflector loops with “EZNEC” by W7EL.
See all details:
“Just as we thought this recent solar storm was going to fizzle out and give us nothing at mid-latitudes, we get a nice boost in strength. In ad... Read more
Gabrielle Calise/The Gainesville Sun Bryan Clark, a 15-year-old Loften High School student and vice president of the ham radio club, attempts to make... Read more
“The New DXer’s Handbook” – Second Edition by K7UA – Download: Read more
The end is near for RadioShack. It seems inevitable that the once seemingly ubiquitous electronics and cell phone retailer will liquidate its a... Read more
Photo: Joined by his mother, Julie Riley of Corvallis, Liam Riley, 7, talks with a ham radio operator in Las Vegas on Saturday with the help of... Read more
For the past 24 years, members of India’s West Bengal Radio Club (WBRC) have helped to reunite lost or injured individuals, many of them pilgrims atte... Read more
Via:FoxNews.com “It sounds like a scene from a disaster movie – mass power failures, plane crashes, satellite disruptions, and train derailments... Read more