I want a BOG that will have a proper pattern over 500kHz to 4Mhz. As I understand it, "loaded Beverages show increased directivity because velocity of propagation along the antenna is /*decreased*/
Thank you for asking this, because I have always been fascinated with the concept of loaded Beverages (either BOGs or shortened overhead). But what did you mean by "proper pattern"? I assume that you
Lots of questions, maybe a little bit of useful answers from me. First, I doubt there is any BOG that will cover 8 octaves with a useful pattern. Unobtanium, IMO. Second, your question did cause me t
But what did you mean by "proper pattern"? I should have said, the best pattern that adjusting the Inductive loads will provide. Yes, I understand the pattern changes with frequency. What I want to d
The only way to predict the RDF and pattern is by modeling it. I don't know of anyone who has done this. I have a few of my .ez Beverage models in w0btu.com/files/ as a starting point, but I don't th
The trick is to take the dc control winding and it's inductance out of the antenna circuit, which I think can be done with a large bypass capacitor. Here's a simple drawing. The BOG goes to antenna
I seem to remember someone saying the modelling programs are unreliable when a wire is close to the ground. Also, there is really no way to model the properties of "ground." It can vary in just a few
Good point, Chuck! You are absolutely right. I would have modeled it above the ground, at least at first. 73, Mike www.w0btu.com _________________ Searchable Archives: http://www.contesting.com/_topb
And, by the way, K5GN and W5KU report that their Beverage above a barbed wire fence is the BEST Beverage at their place. Chuck W5PR _________________ Searchable Archives: http://www.contesting.com/_t
As long as the fence is pointed in the right direction. :-) www.w0btu.com/Beverage_antennas.html#Misc_Beverage_antenna_notes On this page, there are some links to ZL3IX (?) experiences with his Bever
My own experience is that a fence does not degrade the Bev pattern too much as long as the Bev is sufficiently high above the fence wire. I mount my wires about 3 m above the fence. I have never mode
ZL3IX I think by accident had a fence with a break in it. My not working Beverage was 4'up over a continuous welded wire fence. Then some NEC2 modeling of a 600' Beverage 6' above a continuous 3 wire
I have never modelled an inductively-loaded Beverage, but my intuition is that it will not perform any better than an unloaded wire of the same physical length. I haven't modeled for 10 years and e
The comments in your first paragraph are very confusing, mixing up information on different antennas, old or proposed, and parts data, without clearly distinguishing what each comment refers to. I do