Grounding & Surge Protection
Tower, equipment and fence grounding plus coax surge protection - bonded to Motorola R56 practice so a strike goes to ground instead of through your radios.
- Bonded to Motorola R56 practice
- Single-point ground + surge arrestors
- Fence and equipment grounding too
- Documented for carrier acceptance
A tower is the highest point for miles and it will take strikes - the only question is where the energy goes. Done right, grounding sends it harmlessly to earth; done poorly, it finds a path through your radios, your shelter and your feedlines. Broadband Tower Services builds and remediates grounding systems to Motorola R56 practice so the site is protected and passes acceptance.
What a complete grounding system includes
- Coax bonding - every outdoor cable bonded to the tower at a minimum of three points: near the antenna, at the base before the cable leaves the structure, and before it enters the shelter, with intermediate kits on tall towers.
- Single-point ground - all grounds tied back to one master ground bar so there's no difference in potential between systems during a strike.
- Surge protection - a surge arrestor on every line at the shelter entry, so transients are clamped before they reach the radios.
- The ground ring and electrodes - a buried ground ring and rods around the tower base and shelter, exothermically welded for connections that don't corrode loose over time.
- Fence and equipment grounding - the compound fence and ancillary equipment bonded so nothing sits at a dangerous potential.
Surge protectors fail quietly
A surge protector takes hits over its life and eventually wears out - and when it does, it doesn't announce itself. It quietly degrades the signal on the line it's supposed to protect, and it shows up right at the test port on a Distance-to-Fault trace during a line sweep. On a recent utility-tower job a failing surge protector was dragging return loss below spec; we confirmed it with a bypass re-sweep and the fix was a single part. Replacing protectors on a maintenance cycle is far cheaper than the gear they exist to protect.
Why grounding is an acceptance item
Grounding and bonding is one of the first things a carrier inspector checks, and a site won't pass acceptance without it - it's a frequent fail point on close-out. We install it to standard on new work and remediate it on existing sites, then document it for the acceptance package.
The deliverable
A grounding system installed or remediated to R56, photo-documented, with the bonding and surge protection an inspector expects to see - and, where useful, ground resistance verified so you know the earth connection actually works.
FAQ Common questions
Good to know
What standard do you ground to?
Motorola R56, the industry reference for tower and site grounding and bonding - coax bonded at multiple points, a single-point ground, surge arrestors at the shelter entry, and an exothermically welded ground ring. It's also what carrier acceptance expects.
How often do surge protectors need replacing?
They wear out as they absorb strikes and transients, and they fail silently - degrading the line they protect. We check them on maintenance visits and during line sweeps (a failing protector shows up at the test port on a DTF trace), and replace them before they take out the gear behind them.
Can you fix grounding on an existing site?
Yes - grounding remediation is common work, including fence and equipment grounding across maintenance-cluster sites. We assess what's there, bring it up to R56, and document the result.
Why does grounding affect carrier acceptance?
Grounding and bonding is a safety and reliability requirement and one of the first things an inspector checks. A site with incomplete bonding or missing surge protection won't pass close-out, so it's worth getting right the first time.
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