Question: None of the tower sections are Cadwelded. They are bolted together. How is it that these bolts make an adequate lightning connection but one "has" to Cadweld the ground wire to the tower at
I fail to see why a ground is needed at all. Surely the lower two feet of tower is firmly embedded in dirt with the concrete anchor above that. If it was done that way those three tower legs should s
On 09/17/2012 09:10 AM, Frank wrote: I fail to see why a ground is needed at all. Surely the lower two feet of tower is firmly embedded in dirt with the concrete anchor above that. You may want to lo
I fail to see why a ground is needed at all. Surely the lower two feet of tower is firmly embedded in dirt with the concrete anchor above that. You may want to look at some tower base diagrams. Never
The tower legs are embedded in dirt??? Whatever is buried in the earth will obviously a path to ground. But how ideal (i.e. low resistance) is it? Without measurements and/or real pre-construction d
In a nutshell, there's a lot of contact area between the legs where they mate, whether flanged, pin and cup, plate splice, or whatever. The combination of gravity plus all of the fasteners keeps tho
AFAIK, manufacturers reccomend two inches of gravel at bottom of the base to drain water from tower legs. 73, Mirko, S57AD _______________________________________________ ____________________________
You ever take a lightning hit? I have several times and it was uh....exciting. Towers were extensively grounded but not to a common ground with the house. Three tower legs are not an extensive ground
Nope, never been hit by lightning in over 30 years of hamming. Evidently you have had that misfortune. Ever wonder if there might be something you don't understand about static build-up? My tower is
And why not just physically disconnect when not operating? I remove the coax and the rotor feedline from the station input and attach it to the tower making no path. Absolutely the most simple way. M
How tall is your tower? Nope, never been hit by lightning in over 30 years of hamming. Evidently you have had that misfortune. Ever wonder if there might be something you don't understand about stati
Not sure who the question is directed to John, but if it's me, it's 55 feet to the boom but I am 1800 feet up on the side of a hill with 30 mile plus views in most directions. Mike, k5wmg Fast cars,
I assume you don't live in the lightning capitol of North America, central FL. I understand very well about lightning and static build up as do others who have posted here. I have three 199.99 footer
That has to be it. The tower is only 60 feet. Topped with a 2 meter beam and KT-34M2. Not only that but I have been in this same location since 1976 and its in sort of a valley. Lots of mature trees
I'm still an amatuer with 60 foot tower and 4 element beam located in a secluded valley. Your set up sounds professional. You have more steel in the air than my zoning laws would allow. No wonder you
You've been lucky. It should also be pointed out that lightning activity varies widely (a couple of orders of magnitude) with geography. Here in coastal California, there's FAR less than in most part
I'm certainly no expert on lightning, but I thought that that idea you could avoid lightning strikes by dissipating static from the clouds above had been debunked as nonsense years ago. A lightning r
I think it has more to do with location than luck and the tower is only 60 feet high. Lots of tall trees around and all the power lines are above ground. All the power poles have a ground wire runnin
One consideration that I can think of is that the tower legs are similar metals ... both steel and both galvanized. I was always under the impression that one major advantage of cadwelding was that i
I'm certainly no expert on lightning, but I thought that that idea you could avoid lightning strikes by dissipating static from the clouds above had been debunked as nonsense years ago. Yup.. that cl