Rain Function; Sea Function - Icom MR-1210RII Instruction Manual

The following are typical basic operation examples that may hinder radar reception (sea clutter, precipitation in-
terference and echoes from other radar).

■ SEA function

This function serves to eliminate echoes from waves at
close range. Reduce the receiver gain for close objects
within a radius of approximately 8 NM to eliminate sea
clutter.
➥ Rotate the [SEA]/[
to activate the automatic control function.
• The SEA icon ( ) is displayed in the upper left corner
of the screen.
• "AUTO" is displayed below the SEA icon (
automatic control function is active.
WARNING!
R
The [SEA]/[
duces the receiver sensitivity of objects within ap-
proximately 8 NM. Therefore, caution and careful
adjustment are necessary when using the [SEA]/[
] control.
Small objects may not be displayed on the screen
when strong echoes from rain or islands within 1 NM
while the automatic SEA function is activated.

■ RAIN function

This function eliminates echoes from rain, snow, fog,
and so on.
➥ Rotate the [RAIN]/[
clockwise to deactivate the control function.
• The RAIN icon ( ) disappears.
NOTE: DO NOT reduce the echoes too much, oth-
erwise you may miss weaker targets.
] control fully clockwise
) when the
] control re-
] control fully counter-
BASIC OPERATION
Echoes from sea waves
Small echoes
3
Adjust SEA control
Adjust RAIN control
18