How the documented system works
Check both terminal lugs and wire connectors, BNC connection, matching transformer, coax, patch leads, and any adapter for strain or damage. Confirm the intended tuner-free or tuner-required band category.
The boundary that prevents mistakes
A tuner can conceal a feed-line or connector fault. The guide says that coax, connectors, and adapters cause many antenna-system problems; do not trim wire until those paths and deployment geometry are proven.
Use this field sequence
Power down, lower and inspect the antenna, secure both legs, test with a known-good coax when necessary, restore the final geometry, sweep at low power, and report exact band, SWR, height, layout, and corrective steps to Support.
CHA OCF40 User Guide 250513. The exact guide, product state, complete feed path, geometry, and safety limits control. Connector fit does not prove electrical or structural compatibility.
