Garmin M5APGT00, Owner'S Manual

target object. On the Radar screen, the VRM appears as a circle 

that is centered on the present location of your boat, and the 

EBL appears as a line that begins at the present location of your 

boat and intersects the VRM. The point of intersection is the 

target of the VRM and the EBL.

Showing the VRM and the EBL

The VRM and the EBL configured for one mode are applied to 

other radar modes.

NOTE: 

The VRM and the EBL cannot be changed in sentry 

mode.

From a Radar screen, select 

Menu

 > 

Radar Menu

 > 

Show 

VRM/EBL

.

Adjusting the VRM and the EBL

Before you can adjust the VRM and the EBL, you must show 

them on the Radar screen (

Showing the VRM and the EBL

).

You can adjust the diameter of the VRM and the angle of the 

EBL, which moves the intersection point of the VRM and the 

EBL. The VRM and the EBL configured for one mode are 

applied to all other radar modes.

1

From a Radar screen, select a new location for the 

intersection point of the VRM and the EBL.

2

Select 

Drop VRM/EBL

.

3

Select 

Stop Pointing

.

Measuring the Range and Bearing to a Target Object

Before you can adjust the VRM and the EBL, you must show 

them on the Radar screen (

Showing the VRM and the EBL

).

1

From a Radar screen, select the target location.

2

Select 

Measure Distance

.

The range and the bearing to the target location appear in the 

upper-left corner of the screen.

Radar Overlay

When you connect your chartplotter to an optional Garmin 

marine radar, you can use the Radar overlay to overlay radar 

information on the Navigation chart or on the Fishing chart.
The Radar overlay superimposes radar information on the 

Navigation chart or the Fishing chart. Data appears on the 

Radar overlay based on the most recently used radar mode 

(such as Harbor, Offshore, or Sentry), and all settings 

configurations applied to the Radar overlay are also applied to 

the last-used radar mode. For example, if you use Harbor mode 

and then you switch to the Radar overlay, the Radar overlay 

would show Harbor mode radar data. If you changed the gain 

setting using the Radar overlay menu, the gain setting for 

Harbor mode would change automatically.

Radar Overlay and Chart Data Alignment

When using the Radar overlay, the chartplotter aligns radar data 

with chart data based on the boat heading, which is based by 

default on data from a magnetic heading sensor connected 

using a NMEA 0183 or NMEA 2000 network. If a heading sensor 

is not available, the boat heading is based on GPS tracking 

data.
GPS tracking data indicates the direction in which the boat is 

moving, not the direction in which the boat is pointing. If the boat 

is drifting backward or sideways due to a current or wind, the 

Radar overlay may not perfectly align with the chart data. This 

situation should be avoided by using boat-heading data from an 

electronic compass.
If the boat heading is based on data from a magnetic heading 

sensor or an automatic pilot, the heading data could be 

compromised due to incorrect setup, mechanical malfunction, 

magnetic interference, or other factors. If the heading data is 

compromised, the Radar overlay may not align perfectly with the 

chart data.

Showing the Radar Overlay

The radar overlay displays data based on the most recently 

used radar mode.

Select 

Charts

 > 

Radar Overlay

.

The radar picture appears in orange and overlays the 

navigation chart.

Setting a Custom Park Position

If you have more than one radar on your boat, you must be 

viewing the radar screen for the radar you want to adjust.
By default, the antenna is stopped perpendicular to the pedestal 

when it is not spinning. You can adjust this position.

1

From the radar screen, select 

Menu

 > 

Radar Setup

 > 

Antenna Configuration

 > 

Park Position

.

2

Use the slider bar to adjust the position of the antenna when 

stopped, and select 

Back

.

Enabling and Adjusting a Radar No Transmit 

Zone

You can indicate an area within which the radar scanner does 

not transmit signals.

NOTE: 

This feature is not available on all radar and chartplotter 

models.

1

From a radar screen, select 

Menu

 > 

Radar Menu

 > 

Radar 

Setup

 > 

Enable No Transmit Zone

.

The no-transmit zone is indicated by a shaded area on the 

radar screen.

2

Select 

Adjust No Transmit Zone

 > 

Move No Transmit 

Zone

.

3

Select 

Angle 1

, and select the new location for the first 

angle.

4

Select 

Angle 2

, and select the new location for the second 

angle.

5

Select 

Done

.

Stopping the Transmission of Radar Signals

From a Radar screen, select 

Menu

 > 

Radar Menu

 > 

Radar 

To Standby

.

TIP: 

Press   from any screen to quickly stop radar 

transmission.

Optimizing the Radar Display

You can adjust the radar display settings for reduced clutter and 

increased accuracy.

NOTE: 

You can optimize the radar display for each radar mode.

1

Select a radar range (

Adjusting the Radar Range

).

2

Restore the default value of the gain setting (

Adjusting Gain 

on the Radar Screen Automatically

).

3

Adjust the gain setting manually (

Adjusting Gain on the 

Radar Screen Manually

).

Radar Gain and Clutter

Adjusting Gain on the Radar Screen Automatically

The automatic gain setting for each radar mode is optimized for 

that mode, and may differ from the automatic gain setting used 

for another mode.

NOTE: 

Depending upon the radar in use, the gain setting 

configured for use in one radar mode may or may not be applied 

to other radar modes or to the Radar overlay.

NOTE: 

Not all options and settings are available on all radar and 

chartplotter models.

1

From a radar screen or the radar overlay, select 

Menu

 > 

Radar Menu

 > 

Gain

.

Radar

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