User's Manual

MDC-7000P/7900P Series Chapter 2 Radar Basic Operation
0093169006-05E 2-37
2.23 Echo process
Echo process mode feature reduce sea clutter effectively. Echo process mode is used correlation
method. Two types of C1 and C2 are available.
[PROCESS] mode can be changed directly at the upper right of the display using trackball.
1 Move the cursor to OFF, C1 or C2 of [PROCESS] at the upper right part of the display.
Press ENT key repeatedly until the desired choice appears.
Correlation image echo process
At setup value of C1 or C2, correlation images are averaged.
When there is a stable image such as a ship among sporadic images such as sea clutter, the sea
clutter is reduced by averaging to leave the stable image.
Due to the averaging process, even though stable strong images appeared just after transmission, they
are displayed weaker and gradually turn into strong images.
Note:
• For confirmation of an image that may be hidden between the waves and the image of a fast ship that
appears at a different position for each scan, the image may be displayed weaker than the actual one.
Therefore, when fast moving target on the display, select [PROCESS] OFF.
• For operation of GAIN, SEA and RAIN, it may take some time before it becomes effective. Take
enough time for the operation, or operate again after [PROCESS] has been once off.
• Echo process mode requires heading signal, echo process mode turns into OFF if heading signal is
unavailable.
PROCESS: OFF
PROCESS: C1
PROCESS: C2
Scan1 Scan2 Scan3 Scan4
Scan5
Scan6 Scan7
Display of correlaion image process in the case when an image appeared and disappeared.