Lowrance electronic LRA-1000 - Manual (Page 38)

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Anti-Sea Clutter (STC)
The STC percentage displays the current Anti-Sea Clutter setting on
your radar screen.
Anti-Rain Clutter (FTC)
The FTC percentage displays the current Anti-Rain Clutter setting on
your radar screen.
Electronic Bearing Line (EBL)
A radial line that can be rotated 360
°, the electronic bearing line is
used to monitor the bearing of a radar target in relation to your loca-
tion.
The EBL and VRM selection menu appears in a small box on the left
side of the radar display (left). Once activated, the EBL and VRM dia-
log boxes appear in the bottom corners of the screen (right).
Variable Range Markers
A range ring used to measure the precise distance to a target, the vari-
able range marker may be adjusted to measure any distance within the
radar's range.
To select an EBL and VRM:
1. From any of the radar pages, press ↓ to call up the EBL and VRM
selection menu.
NOTE:
If you are on a page where the screen is split between radar and
another page display, make sure the radar is the active page. With
the exception of the map page, the active page on the screen will be
denoted by a blue bar at the top of its window. (The Map Page will
display "Active Map" at the top of the map.)
2. Use ↑ ↓ to select the desired EBL and VRM, then press
ENT
.
3. Use ↑ ↓ to increase or decrease the circular Variable Range Marker.