Technician › T3 Radio Wave Propagation › T3C08
T3C08
What causes tropospheric ducting?
Pick an answer to check it.
Answer: D. Temperature inversions in the atmosphere
Tropospheric ducting is caused by temperature inversions, where a layer of warm air sits over cooler air. This layer can trap and guide VHF and UHF signals over long distances.
Tip: Inversion (warm over cool air) = ducting.