Furuno 1830 User Manual

TUNING k TUNING INDICATOR SENSITIVITY ADJUSTMENT
Tuning and its indlcator sensitivity are preadjusted at the factory. However
if the hest tuning condition is not obtained with the TUNE control set at its
mid-travel, execute the following procedure.
Procedure
1. Transmit the radar on maximum range (long range) with the TUNE contrnl
set at its mid~travel and wait about 10 minutes for magnetron oscillation
to stabilize.
2. Turn potentiometer VRl ("TUNE", Fig.l9), located behind the VR panel of display
unit, fully CW and then slowly turn it CCW until the maximum number of tuning bars
are lit.
3. Adjust potentiometer VR7 ("PEAK", Fig, 19) for the maximum number of luning bars.
4. I f all the tuning bars Ugnt up, turn potentiometer Vit2 ("IND") CCW so
that about four bars light up, and then adjust VR7 ("PEAK") as in step
3 t
5- Adjust VR2 ("IND") 30 that the fifth tuning bar lights up
PANEIj ILLiUMINATtON AIVUSTMBNT
The illumination of the touchpad panel can be adjusted to suit your needs,
hy arijusting the "DIM" potentiometer (VR5> located behind the VR panel of
the Display Unit. See Fig. 19 for the location of VR5.
A/C SEA ADJUSTMENT
A/C StA is preadjusted at the factory. However if the following oonditions
are not eatisfied with the A/C SEA control, adjust polentlometer VU3 ("A/C
SEA"), located behind the VR panel of the Display Unit (Fig. 19.)
Procedur e
1. Transmit the radar on 12-mile range and adjust the TUNE control.
2. Set the Controls; ; off; g ; off; : off; ; on; A/C SEA:
fully CCW (min.) —
3. Adjust the GAIN control on the front panel sn thet a gmall amount of
baekground noise appearg on the screen.
4. Turn the A/C SEA control fuily CW and confirm that no baekground noise
appears In tne range of 0 to 3 nm (min.) or 0 to 6 nm (max.)
J to 6-mile
(Koise soopressed)
Fig.15
19

Furuno 1830 Specifications

General

Brand	Furuno
Model	1830
Category	Marine Radar
Language	English