How the documented system works
Inspect both wire labels and lengths, DIPOLE wing-nut connections, DIPOLE BNC, coax, insulation, strain relief, support geometry, and nearby conductors. Test one band pair at a time.
The boundary that prevents mistakes
Do not combine unlike legs, trim the wire before ruling out the feed line, or use a tuner to conceal an open connection. A station-end SWR trace includes the coax and installed environment.
Use this field sequence
Power down, lower and compare both legs, clean and secure connections, test or substitute the coax, restore the intended geometry, sweep at low power, and document which pair and condition failed.
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.