Section 6.4: Tower and Antenna Safety #

Preparing for General privileges often inspires bigger antenna projects—towers, beams, wire antennas spanning the yard. Getting antennas up in the air can mean working at height, and gravity doesn’t forgive mistakes. Whether you plan to climb yourself or hire professionals, understanding the key safety principles helps you make good decisions.

Climbing Safely #

If you’re going to climb, a safety harness is non-negotiable. But not just any harness—it needs to actually protect you.

Key Information: When climbing a tower using a safety harness, confirm that the harness is rated for the weight of the climber and that it is within its allowable service life.

Weight ratings include everything: your body, tools, hardware, whatever you’re carrying up. A harness rated for 310 pounds doesn’t leave much margin if you weigh 250 and carry 40 pounds of gear.

Service life matters because harnesses degrade over time from UV exposure and normal wear, even if they look fine. Inspect the harness before each use and follow the manufacturer’s inspection and retirement rules. There is no single service-life limit for every harness. Some limits run from manufacture, not first use. Any harness that’s taken a fall with shock loading should be removed from service immediately and handled according to its manufacturer’s instructions.

A harness is only one part of a fall-protection system. You also need training, compatible connecting equipment, attachment points rated for fall protection, and a tower assessed as safe to climb. Stay properly attached throughout the climb and work; never free-climb.

Beyond the harness, never climb alone. A ground crew can call for help if something goes wrong, spot hazards you can’t see, and haul tools so you’re not carrying extra weight. What starts as a “quick five-minute adjustment” can turn serious fast if no one knows you’re up there. Plan for rescue before climbing, including the people and equipment needed to reach an injured or suspended climber. A phone call alone is not a complete rescue plan.

Keep people clear of overhead work and secure tools against falling. Stop when wind, ice, or lightning makes the work unsafe.

Electrical Hazards #

Keep antennas, towers, and installation tools clear of overhead power lines, including their full reach if they fall or swing. Have a qualified installer or the utility resolve any doubtful clearance before work starts.

Towers often carry more than antennas—rotator control cables, preamp power, tower lighting. These circuits create a hazard that’s easy to overlook. Nearby transmitting antennas can create RF hazards too.

Key Information: Before climbing a tower that supports electrically powered devices, make sure all circuits that supply power to the tower are locked out and tagged.

Lockout/tagout means more than flipping a switch. Use the lockout/tagout procedure suited to the installation. Identify and isolate all sources, then lock and tag the appropriate disconnects. Control stored energy, and have a qualified person verify the safe condition. Coordinate with everyone who could turn on a circuit or transmitter. Taking the time to do this could save your life—an unexpected shock at height causes falls even when the voltage itself isn’t lethal.

The Professional Option #

Not everyone should climb towers, and there’s no shame in that. Choose a professional tower crew with proper equipment, training, insurance, and experience. The cost of professional installation is trivial compared to medical bills—or worse. Many hams enjoy decades of great contacts without ever leaving the ground. The OSHA/FCC tower-safety guide explains the planning and training used in professional tower work.

Whether you climb yourself or watch from below, respect for the hazards keeps everyone safe. The goal isn’t just getting antennas in the air—it’s enjoying them for years to come.