Koden MDC-7006, Installation Manual

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Chapter 4 Setup after installation MDC-7000/7900 Series
4-2 0092669002-07
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 to d
isplay “Menu”.
Select [MAINTENANCE] => [STARTUP] => [TUNE] and set it to [AUTO] by moving the trackball,
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.
(4) Move the TRACKBALL 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.
4.1.2 Heading adjustment (HL OFFSET)
Bearing compensation due to installation can be adjusted.
(1) Change the range scale to 1 NM or
more by pressing “+” (or “-”) key on the Operation unit.
(2) Select a visible fixed object as far as possible and measure its bearing using magnetic compass
or equivalent. Measure the bearing of the same target on the radar display. Adjust it according to
the following procedures when both values differ 1 degree or more.
(3) Press MENU
key to display “Menu”.
Select [MAINTENANCE] => [STARTUP] => [HL OFFSET] => [VALUE] will show the current
setting of the input value by highlighting the last digit value by the trackball.
(4) Move the TRACKBALL up or down to adjust the value to match the bearing value of the target
picture to the compass value.