How To Measure The Range And Bearing From Your Ship To A Target; How To Display The Range Rings - Furuno NavNet TZtouch3 Series Operator's Manual

6. RADAR
How to select an orientation mode
To select an orientation mode, tap the orientation mode icon [HU] (or [NU] whichever
is shown) at the bottom right corner of the screen to show [HU] (Head-up) or [NU]
(North-up).
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.
EBL (Electronic Bearing Line)
Fixed range rings
Ruler
Tap
VRM (Variable Range Marker)
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.
6-6
Head-up:
HU
North-up:
NU
Orientation mode icon
Range
measurement
No
Yes
Yes
Yes
Yes
Bearing
measurement
Yes
No
Yes
Yes
No