Which signal degradation increases in long-range RF transmissions when atmospheric ducts form?

💡 Explanation

Multipath interference increases because atmospheric ducts act as waveguides, reflecting radio waves. The reinforcement and cancellation of signals (Multipath Interference) is stronger. Therefore signal quality decreases, rather than decreased path loss if the antenna and receiver were in direct line-of-sight.

• Which outcome occurs when thermal expansion causes insufficient clearance in shell-and-tube heat exchanger baffles?
• Which consequence results when a column's slenderness ratio increases within Euler buckling constraints?
• Within three-phase power grid transformers, which failure results from repeated breaker operation?
• Which operational hazard develops when lubricating oil supply to a turbocharger bearing fails in a diesel engine?
• Which outcome results when excessively high common-mode voltage exists on a differential signaling circuit?
• Which risk increases when a gasoline direct injection (GDI) engine operates with excessive exhaust gas recirculation (EGR)?