Raymarine E120W Reference Manual page 171

Chapter 7: Using the Radar
MENU
This menu can also be selected by pressing and holding INT. REJECT.
Note:
OFF
If you wish to detect the presence of other
radars in the vicinity:
Expansion
The expansion function allows you to either override the pulse length or to give larger
returns so targets are easier to see:
Overriding the pulse length
To override the pulse length:
1. Select the Radar Setup Menu:
Interference Reject
ENHANCE
Target Expansion
ECHOES...
Wakes Period
2. Set the magnification level for target expansion to HIGH:
Larger returns
To alter the processing to give larger returns:
1. Select the Radar Setup Menu:
ENHANCE
ECHOES...
2. Set the magnification level for target expansion to LOW:
Interference Reject
Target Expansion
Wakes Period
Selecting this option may compromise target resolution.
Note:
Setup
Radar Setup...
GPS Status...
Compass Setup...
Highlight Radar
Setup
Select Radar Setup
Radar Setup Menu
NORMAL
EXPANSION
HIGH
ON OFF
1 min
Press and hold
EXPANSION
ON OFF
Press and hold
Radar Setup Menu
NORMAL
LOW
1 min
Radar Setup Menu
Interference Reject NORMAL
Target Expansion LOW
Wakes Period 1 min
Select Interference Reject
Select NORMAL or HIGH
ENHANCE
ECHOES...
Select Target Expansion
Enter Target Expansion option
Select HIGH
Select Target Expansion
Enter Target Expansion option
Select HIGH
155
OK
INT REJECT
ON OFF
OK
OK