How the documented system works
Check matching link states, secure DIPOLE-terminal connections, the DIPOLE BNC, coax continuity, wire damage, and final geometry. Compare both sides instead of assuming the second leg matches the first.
The boundary that prevents mistakes
A tuner can hide the symptom without repairing an open link, poor connector, or damaged coax. Do not transmit while handling links or use an old analyzer trace after changing height or angle.
Use this field sequence
Power down, lower and inspect, restore one known band, test with a known-good feed line when needed, raise to the documented layout, sweep at low power, and record the fault and correction.
CHA LEFS 4010 User Guide 250609. The current guide for the exact LEFS 4010 End Assembly, dipole kit, band, and completed geometry controls. Similar connectors or wire lengths do not prove compatibility.
