16.21 Dual range Radar operation
The Dual Range Radar function enables you to view
2 ranges at the same time in separate windows.
Dual Range is available on the following Radar
scanners:
• SuperHD
™
Open Array
• HD Open Array
• HD Radome
Using your MFD and a compatible Radar scanner,
you can view either a short or a long range image in
separate Radar windows.
The default setting is Long, which provides a
standard scanner range.
Limitations
• Dual Range operation is not available if MARPA
targets are active.
• You cannot acquire MARPA targets if Dual Range
is enabled.
• Radar/Chart sync and Radar/Chart overlay are
temporarily disabled when Dual Range is enabled.
Dual range Radar compatibility
The range covered by the short Dual Range option
depends on the Radar scanner you are using, and
the software version it is using.
Scanner
Dual range
mode
*Range
covered by
software
versions
1.xx to 2.xx
Range
covered by
software
versions
3.xx
onwards
4 Kw HD
Open Array
Long (1) 1/8 nm to 72
nm
1/8 nm to 72
nm
Short (2) 1/8 nm to 3
nm
1/8 nm to 72
nm
4 Kw
SuperHD
Open Array
Long (1) 1/8 nm to 72
nm
1/8 nm to 72
nm
Short (2) 1/8 nm to 3
nm
1/8 nm to 72
nm
12 Kw HD
Open Array
Long (1) n/a 1/8 nm to 72
nm
Short (2) n/a 1/8 nm to 72
nm
Scanner
Dual range
mode
*Range
covered by
software
versions
1.xx to 2.xx
Range
covered by
software
versions
3.xx
onwards
12 Kw
SuperHD
Open Array
Long (1) 1/8 nm to 72
nm
1/8 nm to 72
nm
Short (2) 1/8 nm to 3
nm
1/8 nm to 72
nm
HD Radome
Long (1) 1/8 nm to 48
nm
1/8 nm to 48
nm
Short (2) 1/8 nm to 48
nm
1/8 nm to 48
nm
Limitations of software version 1.xx and 2.xx
• The value for the short range setting must be less
than or equal to the long range setting.
• With Dual Range On and a short range window
active Expansion control shall be disabled in the
Enhance Echoes menu.
Using Dual Range with SuperHD
scanners
Dual range Radar operation with SuperHD scanners.
When using the short Dual Range option, a SuperHD
scanner operates in HD mode only. When using the
long Dual Range option, a SuperHD Radar operates
in SuperHD mode.
Scanner Dual Range mode Operating mode
4 Kw SuperHD
Open Array
Long
SuperHD
Short
HD
12 Kw SuperHD
Open Array
Long
SuperHD
Short
HD
Enabling Dual Range Radar operation
In the Radar application.
1. Select Menu.
2. Select Presentation.
3. Select Dual Range so that On is highlighted.
Selecting Dual Range will switch between dual
range On and Off.
Selecting range operation
With Dual Range set to on and the Radar application
screen displayed:
1. Select Menu.
2. Select Presentation.
3. Select Dual Range Channel to switch between
1 or 2, as appropriate.
Radar application
269
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