Module 2 - VHF Radio Basics

Power, Squelch, and Volume

High power increases range but can create unnecessary congestion. Low power is usually enough for close routine traffic such as marina or nearby vessel calls.

Squelch suppresses background noise. Too much squelch can hide weak signals; too little can make the set noisy and tiring to monitor.

  • Use low power when it is enough
  • Set squelch just above background noise
  • Keep volume audible for watchkeeping

Continue studying VHF Radio Basics

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