Which of the following control selections...

🔍 Key Concepts

• VHF radio squelch control – what happens to weak signals when squelch is turned very low vs. very high • Difference between transmit power setting (low/high) and receive sensitivity • How channel selection works on a marine VHF – does it tune between channels or only to specific discrete channels

💭 Think About

• For each choice, ask yourself: would this make it harder or easier for the radio to hear weak, distant stations? • Consider what happens if squelch is set so high that only very strong signals can open it – how does that affect range? • Think about whether transmit power has any direct effect on how well you can receive, and whether a radio can actually be set ‘between’ two channels in normal operation

✅ Before You Answer

• Review what increasing squelch level actually does to weak incoming signals • Confirm whether the high power setting affects receive range or only transmit power • Consider if a properly-functioning marine VHF can truly operate with the channel switch midway between two assigned channels or if it will lock onto one channel only

Which of the following control selections may result in limited receiving range?

Setting the squelch control to its minimum level.

Setting the squelch control to its maximum level.

The power switch is set to the "high" output position, resulting in receiver overloading.

Setting the channel selection switch midway between channels 6 and 16.

🔍 Key Concepts

💭 Think About

✅ Before You Answer