Range Control; Changing The Range; The Standard Range Scale - Raymarine RL70C Owner's Handbook Manual

Hsb series lcd display
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3.2 Range Control

The radar picture can be viewed at various scales. The shortest range scale gives
a maximum range of
top of the radar picture. The longest range scale gives a maximum range of
between 24 and 72 nautical miles depending on your scanner.
• The long range scales provide the best overview of your vessel's relationship
to land masses, weather fronts and large ship targets in or beyond view.
• The short range scales provide greater detail of the radar echoes close to your
vessel, and should be used as you approach the coastline, harbour or other
vessels in the area.
The Pathfinder Radar display includes concentric range rings, which you can
use to help you to judge distances on the radar picture. Their number and
spacing are adjusted automatically if you change the range scale. They can be
turned off if required (see Section 2.3).

Changing the Range

RANGE
➤ Each time you press the RANGE key, the range changes to the next available
setting. The system will beep three times if no further range scale is available.
➤ To change the range quickly, press and hold the required arrow on the RANGE
key.
The range scale and range ring interval indicators, at the left-hand end of the
status bar, are updated whenever you change the range.

The Standard Range Scale

Details of the standard ranges that can be selected are shown in the table below.
If you wish, you can customise the range scales by specifying different ranges,
as described in Chapter 7.
1
/
nautical miles, measured from the default centre to the
8
Increases
the range scale
Decreases
the range scale
HSB Series LCD Display
Selected
Range ring
range scale
spacing
6nm
343°T
Status Bar
D3939_1

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