Navico 2kW, Installation Manual

Page: 57 / 80

Connect Northstar 6000i / 6100i | 55
7.21 Manual tuning procedure for the 6000i or 6100i system
Note: The following manual tuning procedure is provided only for possible situations where the
unit's automatic tuning does not perform well with a Northstar 6000i or 6100i system. At
present, Navico is not aware of any such situation and recommends that automatic tuning be
used, unless a reason is found to use this manual procedure.
Begin by restoring all radar settings to their factory settings (except trigger delay,
heading calibration and whether or not a heading sensor is installed), as follows:
•
From the main radar page, press Page 1 .
•
Press Restore... .
•
Press Restore factory settings to return the unit to its state when it was shipped (with
the exception of trigger delay, heading calibration and whether or not a heading sensor is
installed).
•
Press Return and Done to return to the main radar screen.
Next, set the rain clutter and sea clutter to 0 and the gain to 150 as follows:
• From the main radar page, press Page 2 .
• If necessary, press Mode to make it read Manual .
• Press Rain Clutter to activate the control.
•
If necessary, press Rain Clutter again to make it read Manual.
•
Press 0 twice on the keypad to set the rain clutter value to zero.
•
Press Sea Clutter .
•
Press 0 twice on the keypad to set the sea clutter value to zero.
•
Press Gain to activate the control.
•
If necessary, press Gain again to make it read Manual .
•
Press 1 , 5 , and 0 on the keypad to set the gain to 150.
• Press Return and Done to return to the main radar screen.
Next, set the scale to 1/8 nautical miles as follows:
• Press zoom Range - several times to access the 1/8 nautical miles scale. (The current
scale is shown in the upper left corner of the screen, identified as "RNG").
•
From the main radar page, press Page 2 , Page 3 , Page 4 , and Install... .
• Press Tune... to display the tuning screen.
• Press Tune Mode (repeatedly if necessary) to set it to Manual .
• Set the rough tune value to 128 (if necessary) by selecting Tune Preset and typing 128
on the keypad.
•
Press Tune .
•
Adjust the tune preset value upwards by pressing the up arrow key on the cursor pad
until the quantity and strength of visible targets is maximized.
•
If the quantity and strength of targets does not increase, return to 128 by typing 128 .
Then adjust the tune preset value upwards by pressing the down arrow key on the cursor
pad until the quantity and strength of visible targets is maximized.