Furuno 1622 - Manual (Page 17)

11
Correct Target pushed
inward Target pushed
outward
Figure 23 Examples of improper and
correct sweep timings
1. Transmit the radar on a range between
0.125 and 0.5 nm and adjust the sensitivity
and STC.
2. Visually select a straight echo (harbor wall,
straight pier).
3. Select ADJ TMG on the menu.
SEL MENU
BY
▼ / ▲ KEY
TOTAL ON TIME
00000 : 00
TOTAL TX TIME
00000 : 00
1. ADJ HDG
2. ADJ TMG
3. NM/KM
TUNE
IDENTIFY STRAIGHT TARGET
SUCH AS BREAKWATER. MAKE
ITS ECHO STRAIGHT ON SCREEN
BY USING
J / K KEYS.
Figure 24 Installation menu, ADJ TMG selected
4. While looking at the target selected at step
2, straighten it by pressing ! if it is pulled
inward, or "
if it is pushed outward.
4) Unit of range measurement for
VRM and cursor
The unit of range measurement for the VRM
and the cursor may be selected to nautical mile
or kilometers as follows:
1. Select NM/KM on the menu.
SEL MENU
BY
▼ / ▲ KEY
TOTAL ON TIME
00000 : 00
TOTAL TX TIME
00000 : 00
1. ADJ HDG
2. ADJ TMG
3. NM/KM
TUNE
(RANGE UNIT)
PRESS
J / K KEYS TO SELECT
NAUTICAL MILE OR KILOMETER
AS THE UNIT OF RANGE.
Figure 25 Installation menu, NM/KM selected
2. Select unit of range desired.
3. Press the [MENU] key to close the
installation menu.
3.4 Adjustments for
Technicians
1) Magnetron heater voltage
Magnetron heater voltage is formed at the MD
Board of the antenna unit and preadjusted at
the factory for use with any length of signal
cable. Therefore no adjustment is required.
However, verify heater voltage as follows:
Note: Turn the power on when measuring
magnetron heater voltage.
1. Dismount the shield plate.
MD board under
the shield plate
Figure 26 MD board