Permanent stations should be planned from the service entrance to the antenna rather than by adding isolated remedies after RFI or lightning problems appear.
Recommended topology
- Inventory every conductor entering the building: coax, balanced line, rotor/control cable, DC, AC, Ethernet, telephone, satellite, and grounding conductors.
- Create a single, accessible cable-entry area with appropriate listed protectors and shield bonding.
- Bond the antenna entry electrode to the premises grounding-electrode system using the required conductor and routing.
- Bond station equipment to a common low-impedance point or reference plane.
- Design each antenna’s radial, counterpoise, balanced feed, and common-mode control separately.
- Protect power and data paths as well as coax.
- Label, inspect, photograph, and maintain the system.
Why single-point entry matters
Surge energy creates damaging voltage differences when conductors enter at separated locations or reference different electrodes. A coordinated entry reduces the path through radio equipment and interior wiring.
Operational safety
No grounding system makes transmitting during lightning safe. Establish a disconnect and shutdown procedure that can be completed before the storm reaches the station. Do not handle cables during nearby lightning activity.
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Source and revision note
Reviewed August 3, 2026. This page is an independent Chameleon synthesis informed by the ARRL Handbook for Radio Communications (station grounding, bonding, safety, and RFI chapters), The ARRL Antenna Book (ground effects, radial and counterpoise systems, multiband antennas, and lightning protection), current Chameleon product documentation, and owner-approved operating policy. It does not reproduce protected source text or figures. Electrical and lightning-protection requirements vary by jurisdiction; permanent installations must follow current applicable codes and qualified local guidance.
