Author: Ken Bauer via TowerTalk <towertalk@contesting.com>
Date: Tue, 4 Feb 2020 15:05:28 -0800
I thought this would be easy, but Ive screwed it up. Im hoping to get some insights from this group of antenna experts re the easiest way to proceed! Perhaps someone could model it for me? I used the
I used EZNEC+ to model the antenna as you described and got an SWR dip at 10.7 MHz and 13.55 MHz, although the SWR values were different than yours. Part of that may be due to a 4:1 balun not necess
resonance is the tendency of a system to vibrate with increasing amplitudes at some frequencies of excitation. These are known as the system's resonant frequencies (or resonance frequencies). The res
The double zepp looks to me like a dipole fed with balanced line. What is the advantage to this antenna? John KK9A Ken Bauer WC6Y I thought this would be easy, but Ive screwed it up. Im hoping to get
I've got a 20m EDZ that serves me quite well, so I thought I'd chime in here. The 4:1 balun isn't used on the EDZ, as the specific length of 450 ohm ladder line specified by the calculator handles th
On 2/5/2020 11:47 AM, Matthew King - AK4MK wrote: As far as the advantage of the antenna, it's two 5/8 wave elements fed in the center, so it has about 3db gain over a standard center fed dipole on t
"That gain is broadside to the antenna, with nulls off the end." That's only partially true. As I stated in my earlier reply to WC6Y, EZNEC says that the nulls off the ends of the antenna aren't the
Author: Ken Bauer via TowerTalk <towertalk@contesting.com>
Date: Wed, 5 Feb 2020 13:48:48 -0800
Thank you all for your useful insights. I have a myantennas.com EFHW 8010-2K at over 100 that has been hard to beat for general coverage. Ive put several other antennas up (Trapped vertical, Inv L) a
Ken, In regard to learning EZNEC, there are a lot of resources to learn the basics of the software- YouTube, a tutorial built into the software, etc. But for more advanced use nothing beats this book
If AB7E's model looks anything like the one in figure 2 of L B Cebik's article http://www.antentop.org/w4rnl.001/mu3a.html I would also be concerned about the pattern. A simple dipole will beat it in
If AB7E's model looks anything like the one in figure 2 of L B Cebik's article http://www.antentop.org/w4rnl.001/mu3a.html I would also be concerned about the pattern. A simple dipole will beat it in