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3.9 Use Function Key

y y

[Page 4] [1] - [7] Trails Setting

• Same functions as in the Trails Setting menu described in Section 3.8.2.

[Page 5] [1] Gain Offset

• Corrects gain while the function mode is called.

• Since the displayed noise level varies depending on the combination of the video process mode

and the interference rejection level, gain needs fine adjustment for always obtaining the highest

level.

• The gain correction function saves the correction value set by the gain adjust in each function

mode, so it can obtain the highest gain without the gain adjust being operated when the function

mode is changed.

• To set high gain, set a value on the “+” side.

• To set low gain, set a value on the “-” side.

• When the radar interference rejection level is increased, the noise level is lowered. Thus, set a

gain correction value to the “+” side.

• When the video process mode 3Scan CORREL , 4Scan CORREL , or 5Scan CORREL is

used, the noise level is lowered. Thus, set a gain correction value to the “+” side.

• When the video process mode Remain or Peak Hold is used, noise is hard to disappear.

Thus, set a gain correction value to the “-” side.

[Page 5] [2] PRF

• Same function as in the Pulse Repetition Frequency described in 3.8.3.

[Page 5] [3] Small Buoy Detection

• When the automatic sea clutter suppression function is used, this mode is used to process signals

for detecting small targets.

Off : Activates the general signal processing mode.

On : The signal processing mode for detecting small targets.

[Page 5] [4] Fishnet Detection

• Use this mode to detect small targets hidden by sea clutter returns.

• The simultaneous use with the automatic rain / snow clutter suppression function will increase

effects.

Off : Activates the general signal processing mode.

On : Activates the fishnet detection mode.

[Page 5] [5] Antenna Height

• Set the height of radar antenna above sea level.

• The STC/FTC curve is changed.

-5m : Set the antenna height under 5m.

5-10m : Set the antenna height 5m to 10m.

10-20m : Set the antenna height 10m to 20m.

20m- : Set the antenna height over 20m.

JRC JMA-5912-6 User Manual

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