Rain clutter setting, Adjust the sea clutter setting manually, Adjust the rain clutter and ftc settings manually – Garmin GPSMAP 740s User Manual

Page 69

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GPSMAP 700 Series Owner’s Manual

65

Radar

Adjusting Sea Clutter on the Radar Screen

You can adjust the appearance of clutter caused by choppy sea conditions. The sea clutter setting affects the

appearance of nearby clutter and targets more than it affects the appearance of distant clutter and targets. A

higher sea clutter setting reduces the appearance of clutter caused by nearby waves, but it can also reduce or

eliminate the appearance of nearby targets.
NoTe: Depending upon the radar in use, the sea clutter setting configured for use in one radar mode may or

may not be applied to other radar modes or to the Radar Overlay (

page 63

).

1. From the Home screen, select Radar.
2. Select Cruising, Harbor, offshore, or Sentry mode.
3. Select Menu > Noise Rejection > Sea Clutter > Presets.
4. Select a setting that reflects present sea conditions: Rough, Medium, or Calm.
5. Select Menu > Noise Rejection > Sea Clutter.
6. Select Up or Down to decrease or increase the appearance of sea clutter until other targets are clearly

visible on the Radar screen.
Clutter caused by sea conditions may still be visible.

Restoring the Default FTC Setting

NoTe: Depending upon the radar in use, the FTC setting configured for use in one radar mode may or may

not be applied to other radar modes or to the Radar Overlay (

page 63

).

1. From the Home screen, select Radar.
2. Select Harbor, offshore, or Sentry mode.
3. Select Menu > Noise Rejection > FTC > off.

Restoring the Default Rain Clutter Setting

NoTe: Depending upon the radar in use, the rain clutter setting configured for use in one radar mode may or

may not be applied to other radar modes or to the Radar Overlay (

page 63

).

1. From the Home screen, select Radar.
2. Select Cruising, Harbor, offshore, or Sentry mode.
3. Select Menu > Noise Rejection > Rain Clutter > off.

Adjusting Rain Clutter on the Radar Screen

You can adjust the appearance of clutter caused by rain. Reducing the radar range also can minimize rain

clutter (

page 54

).

Setting

Description

FTC

This setting affects the appearance of large, hazy masses of clutter caused by rain at any

distance.

Rain Clutter This setting affects the appearance of nearby rain clutter and targets more than it affects

the appearance of distant rain clutter and targets. A higher rain clutter setting reduces

the appearance of clutter caused by nearby rain, but it can also reduce or eliminate the

appearance of nearby targets.

NoTe: Depending upon the radar in use, the rain clutter and FTC settings configured for use in one radar

mode may or may not be applied to other radar modes or to the Radar Overlay (

page 63

).

1. From the Home screen, select Radar.
2. Select Cruising, Harbor, offshore, or Sentry mode.
3. Select Menu > Noise Rejection > FTC.

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