Timing Adjustment - Furuno 1715 Operator's Manual

3. INSTALLATION
6. Press ► to show the Radar Setup menu.
RADAR SETUP
HEADING ADJUST
TIMING ADJUST
SET ON TIME
SET TX TIME
[MENU/ESC]: Exit.
Radar setup menu
7. HEADING ADJUST is selected; press ►
to show the options window.
RADAR SETUP
HEADING ADJUST
TIMING ADJUST
SET ON TIME
SET TX TIME
[MENU/ESC]: Exit.
Radar setup menu (heading adjust)
8. Press ▲ to choose YES, and the display
now looks as below.
Message
HEADING LINE ADJUSTMENT BY
' ' AND ' ' KEYS.
THEN PUSH 'MODE' KEY TO SET.
Heading adjustment display
9. Visually identify a suitable target (for
example, ship or buoy) at a range
between 0.125 to 0.25 miles.
10. Point your boat's bow directly toward the
target selected at step 9.
11. Locate the target selected at step 9 on
the display and choose a range which
places it in the outer half of the picture.
12. Press ◄ or ► to bisect the target with the
heading line.
: 000000h
: 000000h
: YES
: NO
: 000000h
: 000000h
Heading Line
Heading adjustment display
13. Press the [MODE] key.
14. Press the [MENU/ESC] key twice to close
the menu.
15. Move the boat towards a small buoy and
confirm that the buoy shows up dead
ahead on the radar when it is visually
dead ahead.

Timing adjustment

Sweep timing differs with respect to the
length of the antenna cable. Adjust sweep
timing to prevent pushing or pulling of the
target as illustrated below and placement of
targets at incorrect ranges.
Target pushed
Correct
inward
Improper and correct sweep timings
1. Transmit on a range between 0.125 and
0.5 nm and adjust the sensitivity and A/C
SEA. (See page 4 and 5 for procedure.)
2. Choose TIMING ADJUST from the Radar
Setup menu and press ►.
RADAR SETUP
HEADING ADJUST
TIMING ADJUST
SET ON TIME
SET TX TIME
[MENU/ESC]: Exit.
Radar setup menu (timing adjust)
28
Target
Heading Line
Target pushed
outward
: YES
: NO
: 000000h
: 000000h