Very good point. I do not know whether these deep scientific studies were done at NEAR FIELD to the antennas or at distances of hundreds of miles away. The articles / books claim that these yagoi bea
Read the supporting study - the details of the test method are explained pretty clearly. Then you can make your determination as to the validity of the methods employeed. 73/jeff/ac0c www.ac0c.com al
One hint for putting together many antennas with clamps so they stay together (whether stamped or hose clamps, e.g HyGain, CC, etc). One poster said his TH7 fell apart. I've had two which survived 5
Where is that supporting study? I doubt that they measured within the main lobe of the antennas on the comparison test. 73 Peter Read the supporting study - the details of the test method are explain
The results were published in a book. Part of the book details the setup. Equipment used, topologies, etc. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie --Original Message-- From: Peter Voelpe
I doubt that they measured within the main lobe of the antennas on the comparison test. http://www.championradio.com/shop/Publications.2 Your doubts are NOT correct. 73, Jim K9YC ____________________
For HF antennas you don't have to be hundreds of miles away.. The rule of thumb for "field is sufficiently plane that the gain is correct within a few tenths of a dB" is that the field be flat to wit
Author: K7LXC--- via TowerTalk <towertalk@contesting.com>
Date: Mon, 13 Apr 2015 16:05:37 -0400
You should read the tribander comparison report by N0AX and K7LXC "HF Tribander Performance - Test Methods and Results" available from _www.championradio.com_ (http://www.championradio.com) . Some p
Hy-Gain TH-3MK4 $499 from www.Hy-gain.com or $469 from www.dxengineering.com. While the multi-monoband antennas are undoubtedly better performers than the older trapped tribanders, the Hy-Gain design
Hi Joe, Great points, thanks. I guess it's too easy to tar Hy-Gain with the MFJ brush, because I do remember the original Hy-Gain beams as being relatively well built. Curious to know if anyone has b