Icom MR-1220 Series, Instruction Manual

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1
Front panel
1
PANEL DESCRIPTION
MR-1220
Function display (p. 3)
Function
keys (p. 2)
Chinese keys English keys
1
2
3
4
1
2
3
4
5
6
7
8
5
6
7
8
9
10
1
[ ] POWER KEY (p. 6)
Push to turn the radar power ON or OFF.
2
[TX (SAVE)] / [ ] KEY (pp. 6, 13)
z
Push to change the operating mode between the
TX mode and the Standby mode.
z
Hold down for 1 second to turn ON the Power
Save function.
3
RANGE ( ) UP [ + ]/DOWN [ – ] KEYS (p. 6)
z
Push [+] to increase the screen range.
z
Push [–] to decrease the screen range.
4
[CLEAR] / [ ] KEY
z
Push to cancel the previous operation.
z
Push to cancel an alarm.
z
Hold down for 1 second to turn the active AIS
target into a sleeping target.
z
Hold down for 1 second to release a ARPA target,
or delete a TLL symbol.
5
GAIN CONTROL
GAIN
/ (p. 8)
Adjusts the receiver amplifier gain.
z
Rotate clockwise to increase the gain.
6
SEA CLUTTER CONTROL
SEA
/ (p. 8)
Eliminates echoes from waves in close range.
Reduces the receiver gain for close objects within a
radius of approximately 8 nautical miles to eliminate
sea clutter.
z
Rotate the control fully clockwise to activate the
automatic SEA control function.
7
RAIN CONTROL
RAIN
/ (p. 8)
Eliminates echoes from rain, snow, fog, and so on.
z
Rotate the control fully counter clockwise to
deactivate the RAIN function.
8
[MENU (HL-OFF)]/[ ( )] KEY
(pp. 5, 12)
z
Push to enter or exit the Menu screen.
z
While holding down this key, the heading line
temporarily disappears.
9
CURSOR PAD
z
Push to move the cross-line cursor in 16
directions in the normal operating mode.
z
Sets the EBLs, VRMs, alarm area, ARPA target,
AIS target, and so on.
z
Push [◄] or [►] to select a Menu group, or push
[▲] or [▼] to select an item or an option in the
Menu screen.
10
ENTER KEY
Described as [ENTER]/[ ] in this manual.
z
Push to select the item or target that the cross-
line cursor points to, and display the details on
the target in the information box.
z
In the Menu screen, push to apply the selection.
z
Hold down for 1 second to display the Context
menu.