Echo Stretch - Furuno FR-8062 Operator's Manual

1. OPERATIONAL OVERVIEW
1.21.2 Zoom mode
You may choose the zoom mode from among Relative, True or Target.
1. Press the MENU key to open the menu.
2. Choose the Mark menu and press the ENTER key.
3. Choose Zoom and then press the ENTER key.
Relative
True
Target
4. Choose the appropriate echo stretch option and then press the ENTER key.
5. Press the MENU key to close the menu.
1.22

Echo Stretch

The echo stretch feature enlarges targets to make them easier to see, and it is available on the
1.5 -12 nm ranges depending on echo stretch type. There are 3 settings: ES1 to enlarge in bearing
direction for long range detection, ES2 to enlarge in range direction and ES3 to enlarge in bearing
and range directions.
Target
Echo Stretch OFF
Note 1: If the 1.5 nm is preset with a pulse length of S1 or S2, and the 3 nm scale with S2, the
echo stretch is not available on those range scales.
Note 2: The echo stretch magnifies not only small target pips but also returns (clutter) from sea
surface, rain and radar interference. For this reason, make sure these types of interference have
been sufficiently suppressed before activating the echo stretch.
1. Press the MENU key to open the menu
2. Choose the Echo menu and press the ENTER key.
3. Choose Echo Stretch and then press the ENTER key.
Off
1
2
3
4. Choose the appropriate echo stretch option and then press the ENTER key.
5. Press the MENU key to close the menu.
1-24
Use on range
Use on range
1.5 - 12 nm
1.5 - 6 nm
Bearing
direction
Echo Stretch 1 Echo Stretch 2
Echo stretch
Range Range
direction direction
Bearing
direction
Echo Stretch 3