Furuno FR-10, Operator'S Manual

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2. OPERATION
2-20
2. Press  or  to select [Brill/Color], then press the ENTER key.
3. Press

or

to select [Rings Brill], then press the ENTER key.
4. Press  or  to select an option, then press the ENTER key.
[4] is the brightest; [Off] turns off the range rings.
5. Press the MENU key to close the menu.
2.18.2 How to measure the range with a VRM
There are two VRMs, No. 1 and No. 2. The VRMs are dashed rings so that you can
identify the rings from the fixed range rings. You can identify VRM 1 from VRM 2 by
different lengths of dashes. The dashes of the No. 1 VRM are shorter than those of
the No. 2 VRM.
1. Press the VRM key to select [VRM 1] or [VRM 2] as required. The corresponding
VRM indication appears at the bottom right corner, inside a rectangle.
2. Use the cursorpad to align the VRM with the inner edge of the target. Read the
distance at the lower-right corner of the screen. The size of the VRM ring changes
in proportion to the selected range scale.
3. To anchor the VRM, press the ENTER key. To reactivate the VRM, press the VRM
key again.
Note: To cancel the VRM, press the CANCEL/HL OFF key.
4. To erase a VRM, press the VRM key to select the VRM to erase. Press the CAN-
CEL/HL OFF key to erase the VRM and its indication.