T4B03:How is squelch adjusted so that a weak FM signal can be heard?
Direct answer summary (2026-2030 NCVEC pool)
The official correct answer for T4B03 is Set the squelch threshold so that receiver output audio is on all the time.
Use this action or method: Set the squelch threshold so that receiver output audio is on all the time. It is the choice that directly completes the job described in the question.