Koden MDC-5204, Руководство по установке

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Chapter 4 Setup after installation MDC-5200/5500 Series
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4.1 STARTUP menu
4.1.1 Tune adjustment (TUNE)
In order to achieve best performance, adjustment of the automatic tune is required at the time of a new
installation or a magnetron exchange.
It may be impossible to obtain optimum sensitivity without adjusting the automatic tune.
Caution: With starting of the tune adjustment, GAIN mode is set at MAN, SEA mode is set at MAN 0,
RAIN mode is set at MAN 0, PROCESS is set at OFF and the range scale is set at 24NM. After
setting of the tune adjustment, GAIN mode/SEA mode/RAIN mode/PROCESS/range scale will return to
previous setting.
(1) Find stable object such as the mountain or island as far as possible. Adjust GAIN knob to
decrease the gain to a level where the chosen target is barely visible.
(2) Press MENU key, select [MAINTENANCE] => [STARTUP] => [TUNE] and set it to [AUTO] by
moving the trackball/joystick, and then press ENT key.
(3) Select [MAINTENANCE] => [STARTUP] => [AUTO ADJ] => [VALUE] will show the current
setting of the input value by highlighting the last digit value by the trackball/joystick.
(4) Move the trackball/joystick up or down to change the value, and obtain the maximum magnitude
of the target on the display. When a target becomes too strong to find the peak, lower gain with
GAIN knob once again and adjust the tune to obtain the maximum magnitude of target.
(5) Press ENT key to save the result of the maximum magnitude of target.
Maximum magnitude
of the target
Tune up >
< Tune down
AUTO ADJ MAN ADJ