Radio/Communication Towers

[Thinkster]

A co-worker who recently took the state exam said he had a question related to Communication or Radio Towers near Bodies of water. The question was something like how far must the tower be from a body of water. Being that I'm kinda the communication specialist (although I don't deal with large towers or bodies of water at my work location), he figured I would know. But I don't know where to find that scenario in the code book or what the rule is on that. Anyone know?

 

[tom baker]

Art 692 is Artificial and Man Made Bodies of Water, I saw nothing there. Radio towers are in Art 810, a quick glance shows nothing there.
Perhaps another standard?

 

[GoldDigger]

With the right base design you can put the tower in the middle of the water. And get a good ground plane for free.

 

[K8MHZ]

Here is a pic from CA near the Oakland Bay bridge

So the answer would be 'right next to the water' or else it would be in it, not near it.

 

[zbang]

Here is a pic from CA near the Oakland Bay bridge

Looks like the KGO towers. There are also some next to the bay bridge toll plaza (can't find a picture) that will have water lapping at the concrete bases at high tide.

 

[Thinkster]

I guess it was just one of those oddball questions that's probably in an FCC codebook or something... The only thing I could imagine is you would want the tower far enough from water so that if it should tip over, it wouldn't land in water?

 

[K8MHZ]

I guess it was just one of those oddball questions that's probably in an FCC codebook or something... The only thing I could imagine is you would want the tower far enough from water so that if it should tip over, it wouldn't land in water?

I did some digging on the FCC web site. I found nothing there pertaining to tower vs. water location.

What I did find on other sites were a few state and local rules about placement of towers near beaches, dunes, water, etc. Nothing the NEC or FCC would care about.

 

[Thinkster]

I did some digging on the FCC web site. I found nothing there pertaining to tower vs. water location.

What I did find on other sites were a few state and local rules about placement of towers near beaches, dunes, water, etc. Nothing the NEC or FCC would care about.

Thank You for checking. I'm thinking now that my co-worker doesn't remember the question exactly or is thinking of two different questions and combining them. Probably the question was related to 810.16 or 810.18 as I've seen questions on both of those on the exam.