“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:
Check Rare DX Sound Clips on K8CX WebSite: Read more
Are you going to the 2016 Dayton Hamvention? If so and you would like to win a FT-991, here’s your chance! We will also have people at the Hamve... Read more
The signal from the digital amateur television (DATV) transmitter aboard the International Space Station (ISS) cannot be detected on the ground, Amate... Read more
Juan de Nova 2016 ! We are about to turn the page on FT4TA. We still have a number of presentations to make to share this experience with as ma... Read more
CVA DX CONTEST RULES 1.PERÍODO: Date Modo Time Event Third Saturday in August- 2015/08/15 CW 21:00 (UTC) First Third Sunday in August –... Read more
High Performance, Ultra-Rugged 30m Through 10m 6 Band (With Feedpoint Mounted ATU) Vertical Dipole Under 16 Feet Tall! No Radials! Force 12... Read more
Today we’re going to look at some items that would be ideal holiday gifts for any ham, both new and seasoned. This year’s selection has a price range... Read more
The ARRL Board of Directors approved a motion to amend the DXCC Rules, when it met January 19-20. Section II, Subsection 1 of the DXCC Rules now will... Read more
New CQ Magazine is available to download ! Read more
Let’s take a look at the H1B Android DMR Radio from RFinder, and do some on-air testing ◇ Main Features LTE 4G, Android IP67 rugged smartphone,... Read more
Download the .pdf File CW PY 2014 CW DX 2014 CLUBES 2014 SSB PY 2014 SSB DX 2014 Visit the oficial site: http://www.cvadx.org/ Read more
Christmas Day 2015 saw a small piece of history for three generations of the Bird family, descendants of renowned radio amateur Gordon ‘Dick’ Bird G4Z... Read more
4 December 2014 FOR IMMEDIATE RELEASE From The KP1-5 project RE: K1N Navassa Island DXpedition The KP1-5 Project and the U.S. Fish & Wildlife Serv... Read more