Furuno WR110, Installation Manual

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5. AZIMUTH INITIAL SETTING
Before or after execute the “Renew A-threshold” on section 4.4.3, the radar must adjust the azimuth
offset. The radar orientation and actual geographical azimuth are normally different causing an
incorrect initial echo indication. An azimuth adjustment is required for proper echo orientation.
The order of adjust the highest accuracy of azimuth is as follows:
1) Solar position simulator on section 5.3.
2) Echo (Clutter) on section 5.2.
3) Magnetic compass on section 5.1.
However after the radar installation, it can possibly start with “3) magnetic compass” to set the azimuth
offset. Next, work with “2) Echo” to adjust azimuth using topography map. Then adjust the accurate
azimuth offset using the solar position simulator during the sunny weather around noon (Refer to
section 5.3).
5.1. Magnetic Compass
Determine actual radar antenna azimuth (Refer to the orientation diagram below) using magnetic
compass. Then enter “Azimuth Offset” into the RainMap.
1) Open the setting menu of the RainMap.
2) Enter the longitude and latitude of location in [Radar site
location] menu.
3) Enter the value that measured by magnetic compass into
the [AZ offset to north] in [Zero position offset] menu.
Azimuth range: +0 to 360 degrees.
e.g., enter 315 degrees when the origin of radar is as below image 1.
Note:
The right image shows that the north of
measurement between True north and Magnetic
north are different because of declination. The
north direction will be changed by LAT/LON of
location where determines.
Therefore, it is necessary to adjust azimuth offset
even with other 2 ways (section 5.2 and 5.3)
either.
Heading of radar
Tube connector
Radar Base
Radar
N
Image 1
Heading of
radar
315
degrees
clockwise
from North
TOP VIEW
TOP VIEW