Echo (Clutter) - Furuno WR2120 Installation Manual

5.2.

Echo (Clutter)

Use a topographic map w/ terrain to find out the location where install the radar from web site (It is
not necessary if a map is already installed in the RainMap) to adjust the azimuth compare with the
RainMap echo of radar.
1) Open a topographic map of the radar installed location.
2) Use the setting that setup on section 5.1.
3) Setup [Display] as below:
- "Display range [km]" to "70.0" or a range that
makes easier to find out a target such as tree,
building, and mountains by ground clutter
depends on an observation area.
- Display data type: Zh[dBZ] or R[mm/h]
4) Select "1" on "PRF pattern" in the [TX] menu.
5) Select "4" on "Pulse set" in the [TX] menu.
Pulse Range
No. [km]
1 30
2 30
3 50
4 70
6) Setup [Scan] as below:
- Scan mode: PPI scan
- EL angle [deg]: 0.0 to 7.0
Set radar to a higher elevation until no echo is
received from lower buildings or structures.
7) Select "OFF" for "GCR" in [Ground clutter rejection]
setting menu of RainMap.
8) Click [Connect] button, then click [TX] button to
start checking the echo in the RainMap.
9) Add a map file to RainMap and display on screen
if the location map has been prepared.
10) Change the value of "AZ offset to north" setting in
the [Zero position offset] menu to adjust the echo
that fit to the geographical feature like a mountain
line ridge or form, note distance, and relative
bearing on map.
Reso- Pulse Range
lution No. [km]
75 5 50
150 6 30
150 7 50
150 8 70
Reso-
lution
75/150
300
300
300
40