Start with the decision: A broadband matching range tells you where the transmitter can see an acceptable load; radiation efficiency depends on current distribution, conductor and transformer loss, return-path loss, feed-line loss, geometry, and ground.
What changes the result
Matching, radiation, feed-line current, loss, structure, weather, and RF exposure are different parts of the complete antenna problem.
The mistake to avoid
Do not promote acceptable transmitter load, physical fit, or one successful contact into a universal compatibility, efficiency, pattern, or range claim.
Use this practical sequence
Define the measurement plane and exact configuration, begin at low power, record geometry and environment, compare controlled observations, and change one variable at a time.
Source boundary
Current Chameleon guides and controlled RF engineering references. Use the exact current product, complete configuration, and applicable safety limits.
