Plain-language answer: RF voltage is the time-varying potential produced by radio-frequency energy across antenna and feed-system components.
Why it matters in the antenna
Standing waves and resonance can create local peak voltages far above simple transmitter-output estimates, especially near open ends and high-Q networks.
What to verify
Use peak—not only average—ratings, preserve clearances, tune at low power, and prevent access to energized conductors.
The common mistake
Assuming a 100-watt radio cannot produce dangerous or destructive RF voltage.
Operating boundary
Use the exact documented component, geometry, frequency, power, duty cycle, clearances, and feed/return system. Begin tests at low power and stop for heating, arcing, damaged insulation, or unstable supports.
