To: <towertalk@contesting.com> Hi Dave, That has always been my understanding, that inductance is about the same if "width" and length is about the same and if the length is much greater than the wid
To: <towertalk@contesting.com> Hi Bob, It is very well known and well documented that time-varying current tends to move to the edges of a flat strip, causing a wide flat strip to have higher resista
Just find a commercial roofing company, use their sheer, and make copper strips for your grounding straps any width you want.Cheap, too.They have scraps from copper roofing jobs, just ask. Ken / Ken'
Ken, Thanks for the tip! We've been scrounging copper strap from the scrapyards for years. Got to go see if any of the local roofing companies have any. 73, Kurt YagiStress - The Ultimate Mechanical
To: <towertalk@contesting.com> Hi Dave, There's a few things below that are generally useful to towertalkians, since they apply to both lightning and RF. First, I appreciate the info. I e-mailed you
<snip> Absolutely true, but try to bend a solid shield Both of these effects are included in the inductance formula I gave. The "bunching" you describe, is an artifact of the self inductance of the s
around Ok, let the holy wars begin! I'm only jumping into this one to promote the "Holy War" scenario. Bob Wanderer, AA0CY, should get into this one, yet again,to calrify all of the the subtleties!
To: <towertalk@contesting.com> Hi All, It's looking for that collection or source of opposing charges. In my installation, I prefer it do that out at the tower. Impedance isn't great for any groundin
I can Tom. Its a pretty well known fact in the industry that ribbon conductors have lower inductance than round wires of the same cross sectional area. In fact, the inductance of a ribbon of a given
<snip>-- Can you give me a reference for that? I've been looking for years, and find no data on conductor shape vs inductance. It's in the "Grounds" book. Poly also sells a slide rule which will show
I'm kinda tired of holy wars and trying to work with the "My mind's made up, don't confuse me with the facts" crowd. I proselytized for 4 years while at Poly, so I'll let Kurt and Steve handle it as