T3C03:What is one characteristic of VHF signals received via auroral backscatter?
Direct answer summary (2026-2030 NCVEC pool)
The official correct answer for T3C03 is They are distorted, with a characteristic raspy sound.
The key fact is They are distorted, with a characteristic raspy sound. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.