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Chameleon Knowledge Base · The Complete Online HF Antenna Handbook

Why Should You Disconnect Antennas During Thunderstorms?

Disconnecting antennas and moving feed lines away from occupied equipment can reduce a path for lightning-induced energy, but it cannot make an active thunderstorm safe or replace a designed protection system.

Getting Started HF Fundamentals Reviewed 2026-07-14
Start here: Disconnecting antennas and moving feed lines away from occupied equipment can reduce a path for lightning-induced energy, but it cannot make an active thunderstorm safe or replace a designed protection system.

Why it matters in the field

Direct and nearby strikes can jump gaps and enter through power, network, control, or grounding conductors. Timing matters: disconnection must happen before the storm arrives.

Where operators get caught

An unplugged coax placed beside the radio can still arc to the chassis or operator.

A better field procedure

Stop operating early, use an external protected disconnect location when designed, keep people away from wiring and equipment, and rely on coordinated bonding and surge protection.

Configuration boundary

Connector fit proves only mechanical engagement. Current product instructions, cable preparation, electrical role, weather sealing, structural load, grounding code, and the complete antenna configuration still control.

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