SAM Electronics GmbH NG3028X25KW Manual Do Utilizador

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ED 3038 G 232 / 01 (2002-06) 
Operating Instructions
4  Setting the Radar Function
4.2  Basic Setting of the Radar Video
b_r1_e22.fm / 21.06.02
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RADARPILOT / CHARTRADAR 
4.2
Basic Setting of the Radar Video
So that radar targets can be detected with certainty, an optimum
setting of the radar video is of fundamental importance.
WARNING:
An optimum setting of the video is not only impor-
tant for a clear visual display of the targets on the
video but is also a necessary prerequisite for the
EPA and ARPA functions.
Especially in the case of heavy rain and/or a rough
sea, it is essential that the setting be adapted by
trained personnel so that it is suitable for the situ-
ation.
In the following, there is a description of how to set the video of a radar correctly on the master indicator.
Only after these settings have been made on the master indicator can activated slave indicators too be
set in the same way (parameters that cannot be set on slave indicators are pointed out).
1.
Select the 12 NM display range.
2.
Tuning (adjustment of the frequency) (can be set on the
master indicator only)
Automatic tuning: With the MORE key, click into the TUNE
area; then click on AFC (Automatic Frequency Control).
If two X-Band or two S-Band systems are being operated
simultaneously, disturbance of automatic tuning might
occur (if it is being used). In such cases, manual tuning is
appropriate.
Manual tuning: Click into the TUNE field. As a result, a window
opens in which a setting bar is displayed. With the trackball, set
the display bar of the TUNE indication to its maximum value and
press the DO key.
In the case of manual tuning, the length of the bar in the
TUNE area corresponds to the amplitude with which the
input signal is available for signal processing. Observe
more than one antenna rotation to find the maximum.
3.
Gain (input amplification) 
Click into the GAIN area, and increase the value by means of
the trackball until slight noise is visible on the PPI. Then reduce
the value a little until the noise has just disappeared and no
more. Then press the DO key.
4.
Select the desired display range.
5.
Anticlutter Sea (sea clutter suppression) 
With Anticlutter Sea, the input amplification at close range is
reduced depending on the distance.
TX/RX 1(X) SP HSC
TUNE
GAIN
RAIN
SEA
CLEAN SWP
IR
HARBOUR
TUNE
2.DO
AFC
TUNE
1.MORE
AFC
TX/RX
TUNE
1.DO
72 %
3.DO
2.
GAIN
1.DO
27 %
3.DO
2.