--- In Repeater-Builder@yahoogroups.com, "Doug Rehman" <d...@...> wrote: > > [...] > > I agree about the survivability of folded dipole arrays, but they don't seem > to be an option at 900 MHz- at least I don't see them in commercial catalogs > and have never encountered an 800 or 900 MHz. >
www.rfi.com.au - RF Industries do make 800MHz folded dipole arrays to order and can also make 900MHz arrays. Yes, they're good quality, fully welded construction and can be made in S/S or anodised aluminium. If you want some really good info about controlling lightning strikes, go over to www.polyphaser.com and get a copy of their book, "The Grounds for Lightning Protection". Its been around a while and does have a bent towards their products but there is plenty of generic info that really helps to understand (in simple terms) the physics of lightning strikes and protection methods. You may have to email them and request it (the last copy I got 3 or 4 years ago they sent to me at no cost - not sure if it is still in print or not but it is worth getting if you can). Cheers, Rodney.
