Powering the radar scanner on and off

In the radar application:

1.Press the POWER button on your multifunction display.

2.Using the relevant softkeys, select the operating mode for the radar scanner.

9.3 Radar range and image quality

Maximum radar range

The usable range of the radar is limited by factors such as the height of the scanner, and height of the target.

Maximum radar range is essentially line-of-sight, so is limited by the height of the scanner and the height of the target as illustrated below:

The table below shows typical maximum radar ranges for various radar antenna heights and target heights. Remember that although the radar horizon is greater than the optical horizon, the radar can only detect targets if a large enough target is above the radar horizon.

Antenna height

Target height

Maximum range

(meters)

(meters)

(Nautical miles)

 

 

 

3

3

7.7

 

 

 

3

10

10.9

 

 

 

5

3

8.8

 

 

 

Using radar

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Raymarine C140w, C90w manual Radar range and image quality, Powering the radar scanner on and off, Maximum radar range