Furuno WR2120 Operator's Manual page 30

Note:
Because EL end angle can be set up to 182 degrees, it will sector blank the opposite side -2 to
90 degrees either.
Case 1:
If setup sector blank of AZ 0 to 40 and EL -2 to 182, AZ of between 180 to 220 degrees will also
stop transmit when observing the radar.
Case 2:
If setup sector blank of AZ 45 to 90 and EL -2 to 90, then opposite side will not stop transmit.
220
180
Case 1
9) Ground clutter rejection
GCR: Select "OFF", "1", or "2" to whether remove
ground clutter as a target if elevation is lower
than the setting.
- OFF: Ground clutter will not be rejected.
- 1: Reject the ground clutter by using observed
data with MTI (Moving Target Indicator)
process.
- 2: Reject the ground clutter of Rain data based on data of Reference folder (scr, scrx).
(Refer to section 2.8. 4) for detail of reference data)
Threshold EL angle [deg]:
Setup the threshold elevation angle. MTI processing is applied below the threshold elevation angle.
10) Ship clutter rejection
SCR:
Select "OFF" or "ON" to whether remove ship clutter
as a target if elevation is lower than the setting.
- OFF: Ship clutter will not be rejected.
- ON: Reject the ship clutter by using
observed data
Threshold EL angle [deg]:
Setup the threshold elevation angle. SCR processing is applied below the threshold elevation angle.
11) Doppler velocity
Doppler Velocity Calculation:
Select "ON" or "OFF" to calculate the Doppler velocity.
SQI threshold:
Setup SQI (Signal Quality Index) threshold (0.00 to
1.00). This is the correlation between the signal and
its Doppler lag. If the measured SQI at a bin is
greater than the threshold, then the Doppler velocity
and width are "passed" for SQI.
0
40
Sector blank area
20
45
90
Case 2