Start with the function: Static buildup on an antenna is accumulated electric charge caused by wind, precipitation, dust, nearby electric fields, or induction on an insulated conductor.
What the label leaves out
A long wire can reach a damaging voltage in fair weather, while changing charge may sound like noise or repeatedly discharge into a receiver input.
The mistake to avoid
No visible spark does not mean the voltage is harmless, and a disconnected coax can remain charged.
A sound installation approach
Provide the antenna’s approved DC bleed or discharge path, bond and protect the entry, discharge through a controlled device before handling, and keep all antenna work stopped during threatening weather.
System boundary
Use current manufacturer documentation, measured RF behavior, the building grounding system, and applicable electrical and lightning requirements. A ratio, DC continuity check, or inline protective device does not establish complete-system safety or efficiency.
