How To Measure The Range And Bearing From Your Ship To A Target; How To Display The Range Rings; How To Set The Number Of The Range Rings To Show - Furuno TZTL12F Operator's Manual

6. RADAR
6.8 How to Measure the Range and Bearing from
Your Ship to a Target
You can measure the range or bearing to a target by the following four methods.
Fixed range rings
Ruler
VRM (Variable Range Marker)
EBL (Electronic Bearing Line)
6.8.1

How to display the range rings

The range rings are the concentric solid circles about your ship. Use the fixed range
rings to get a rough estimate of the range to a target.
To show or hide the range rings, open the [Layers] menu then turn [Radar Rings] on
or off.
To measure the range with the range rings, count the number of rings between the
center of the screen and the target. Check the range ring interval and estimate the dis-
tance of the echo from the inner edge of the nearest ring.
6.8.2

How to set the number of the range rings to show

1. Open the home screen, then tap [Settings] - [Radar].
2. Tap [Rings Interval].
3. Tap a number. [Automatic] automatically selects the number of rings according to
the range scale.
4. Tap the close button to finish.
6-6
Range
measurement
Yes
Yes
Yes
No
Bearing
measurement
No
Yes
No
Yes