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海上ラジオ Garmin VHF 725eのPDF オーナーズマニュアルをオンラインで閲覧またはダウンロードできます。Garmin VHF 725e 44 ページ。 Waterproof marine radios
Garmin VHF 725e にも：仕様 (2 ページ)

Setting the Squelch Threshold

Setting the Squelch is important for recep-

tion of signals you want to hear. There are ten

threshold levels, from 0, which allows all signals

to be received, to 9, which allows only the

strongest signal to be heard through the speaker.

The diagram in Figure 5 demonstrates how

setting the threshold level allows you to hear

only the signals you desire, while weaker,

unintelligible signals are not heard.

To set the Squelch threshold:

Setting the

Squelch

Threshold

Signal At Level 6

Only Signals

Stronger Than

Level 5

Will Be Heard

EXAMPLE of THRESHOLD

SET AT LEVEL 5

Selected Squelch Level

Up/Down Keys

Squelch (SQ) Key