Furuno FR-8062, FR-8252, FR-8122 manual Echo Stretch, Echo stretch settings

1. OPERATIONAL OVERVIEW

1.23Echo Stretch

The echo stretch feature enlarges targets in the range and bearing directions to make them easier to see, and is available on any range. There are three levels of echo stretch as shown in the table below.

Echo stretch settings

	ES	Stretch in range direction	Stretch in bearing direction
	Setting
1		Stretched +2 dots	An echo is stretched to three dots in size in
			bearing direction if it is less than three dots in
			bearing direction. If its size is larger than three
			dots it is not stretched.
2		Stretched +3 dots	An echo is stretched to four dots in size in
			bearing direction if it is less than four dots in
			bearing direction. If its size is larger than four
			dots it is not stretched.
3		Stretched +3 dots	An echo is stretched to five dots in size in
			bearing direction if it is less than five dots in
			bearing direction. If its size is larger than five
			dots it is not stretched.
		The echo stretch magnifies not only small target pips but also returns (clutter) from
	Note
		sea surface, rain and radar interference. For this reason, make sure those 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 press the ENTER key.

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4.Choose the appropriate echo stretch option and press the ENTER key.

5.Press the MENU key to close the menu.

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