Hell, if half the MOTOROLA-INSTALLED towers around here were built to their own specs, I'd be impressed.
Most of them are using screw in guy anchors with no dead-mans, and are a good dust-up of wind away from falling over. Haven't seen a Moto-tower yet that met R-56 around here! You gotta love Moto... great engineering, poor implementation. :-) Towers are kinda like civil engineering for bridges... everyone knows how to build them properly NOW, but no one went back and rebuilt the old ones... I didn't mean to make it sound like I knew everything there is to know about towers. I don't. I was just pointing out that PERHAPS adding grounds where they weren't before... to fix an *RF* problem... can lead to other problems that might have to be addressed... Like screwing up your carefully (or not so carefully) engineered lightning protection. Okey dokey? Everybody happy now? LOL! Y'all be careful out there and have fun... Nate WY0X On Mar 12, 2009, at 8:25 PM, Glenn Little WB4UIV wrote: > If the tower and guys are installed properly, the guy points will > not explode. > > The base of the tower is to be grounded via copper plated ground > rods spaced at twice the length of the rods and bonded via > exothermic welds 18 inches below grade. The tower base is bonded to > this ground ring via exothermic welds. > > The guy points are grounded via galvanized ground rods. The ground > wire is exothermic welded to the rod and grounded to the guy wires > via guy clamps. > > The galvanized rods present a higher resistance ground than the base > of the tower reducing the fault current through the guy wires. > > Reference Motorola R-56 and MIL-HDBK-419. > > 73 > Glenn > WB4UIV
