Start with the practical answer: Start product troubleshooting with the current exact user guide and one known configuration; product-family resemblance is not permission to borrow another antenna’s dimensions, tuner state, coil setting, or return path.
What changes the result
Separate the station into power/source, feed line, matching, radiator, return, environment, and propagation so one symptom is not mistaken for another.
The mistake to avoid
Do not transmit into an uncertain, arcing, hot, unstable, or exposure-unsafe system, and do not use a tuner to hide an unresolved fault.
Use this operating sequence
Capture a known-good baseline, remove RF, restore the exact configuration, inspect and measure from radio outward, substitute one known-good part at a time, then document the correction.
Source boundary
Current controlled CKB RF engineering, VHF/UHF, operating, and diagnostic references. Confirm current local coordination, band plans, satellite data, and equipment documentation before operating.
