Icom MR-1000TTM - Manual (Page 14)

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BASIC OPERATION
The following are typical basic operation examples, which may hinder radar reception (sea clutter, precipitation in-
terference and echoes from other radar).
■ RAIN function
This function eliminates reflection echoes from rain,
snow, fog etc.
• Rotate the control fully counterclockwise to deactivate the
control function. The RAIN indicator ( ) disappears.
• NOTE: DO NOT reduce the reflection echoes too much,
otherwise you may miss weaker targets.
■ SEA function
This function serves to eliminate echoes from waves
at close range. Reduce the receiver gain for close ob-
jects within a radius of 8 miles to eliminate sea clutter.
• Rotate the control fully clockwise to activate the automatic
control function. SEA indicator ( )appears in the upper left
of the screen.
■ OFF CENTER function
The scanning area can be shifted in a desired direc-
tion and can be enlarged partially. This is useful when
the Head-up* is selected and you want to enlarge the
bow direction display, or, the center of the screen shifts
in the direction of the intersection.
• This function is available for 24NM or shorter range selec-
tion.
*This function is not available in the TM screen.
q Push [Щ Ъ Ω ≈] to move the cursor where you
want to shift the center of the screen.
• Max. offsetting is up to 75% of the screen.
w Push [ALM]/[ ] and [MODE]/[ ] simulta-
neously to shift the screen.
e Push [ALM]/[ ] and [MODE]/[ ] simulta-
neously again to return to the normal screen.
With OFF CENTER ON Normal screen
Adjust SEA control Echos from sea waves
Adjust RAIN control Small echos
WARNING:
The [SEA]/[ ] control re-
duces the receiver sensitivity of objects within 8
miles. 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 the rain or the island within
1 NM while automatic SEA function is activating.
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