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COMPLETE SET:
1. PRINCIPLE OF OPERATION
No. Name
Type
Code No.
O'ty Remarks
1
Scanner Unit
RSB-0034
000-083-993
1
8kg
2
Display Unit
RDP-075-S
000-088-643
1
4.9 kg, for other than W. Ger.
RDP-075-WG
000-088-644
4.9 kg, for W. Ger.
3
Installation Materials
CP03-07000
000-083-075
Iset w/lOm Sig. Cable Assy.
4
Accessories
FP03-02600
000-081-064
1 set for other than W. Ger.
FP03-03400
000-080-918
for W. Ger.
Spare Parts
SP03-05800
000-080-923
1 set
i
INSTALLATION MATERIALS:
No.
1
2 '
Name
Type
Code No.
O'ty Remarks
Power Cable Assy. (3.5m)
03S7434
000-113-501
1
Conneetor fitted
Signal Cable Assy. (lOm)
S03-21-10
008-239-050
Select one.
Connectors fitted.
Signal Cable Assy. (15m)
S03-21-15
008-239-060
Signal Cable Assy, (2pm)
S03-21-20
008-239-070
^nal Cable Assy, (30m)
Slottcd Hcx. Bolt
S03-21-30
008-239-080
3
M 10x25 SUS304
000-862-308
4
for scanner unit mounting
4
5"'"
6 ■
Flat Washer
MIO SUS304
000-864-131
4
Spring Washer
Tapping Screw
M10SUS304
000-864-261
4
6x20 SUS304
000-800-414
5
for display unit mounting
Flat Wa.sher
M6 SUS304
000-864-129
5
ACCESSORIES:
No. Name
Bracicet As.sy.
Type
Code No
Q'ly Remarks
1
FP03-02610
008-191-860
1
2
I-Iood Assy.
FP03-02620
008-191-870
1
for other than W. Ger.
FP03-02640
008-376-440
for W. Ger.
3
Knob Bolt
KG-B3 M8x25
000-800-554
for display unit hanging on
4
Rubber Washer
02-052-1302-1
100-022-531
2
bracket
5
Washer
05-012-0125-1
591-201-251
2
SPARE PARI S:
No. Name
Type
1
Code No.
Q'ty Remarks
1
Fuse
FGMB lOA 12.5VAC ! 000-104-815
2
for 12VDC ship's mains
2
Fuse
FGMB 5A 125VAC
i
000-112-785
2
for 24/32VDC ship's mains
OPTION:
No. Name
Tyjie
Code No.
O'iy
1
Remarks
1
Rectifier
I'R-62
000-013-484
000-013-48.5
(KKj-0l3-48r)
(>00-013-487
lOOVAC ship's mains
IKIVAC ship's mains
22()VAC ship's mains
236vAC ship's mains
2
External Buz/er
OP03-2I
(KK)-630-()97
1
3
Gasket
OP03-46
(K)8-109-490
1
for flush mount
4
NMEA Cable
22S0021
000-109-517
1
Conneetor fitted, 5m
5
Dust Cover
03-028-0401
1.00-087-000
1
for display unit
6
X-Band MIC
RU-8014
000-115-556
1
RF amp built-in.
7
Antenna Bracket
1
for sailboat
8
EMI Filter
OP03-37
008-104-340
1
for other than W. Ger.
The term "RADAR" is an acronym meaning RAdio Detection And Ranging. Although
the basic principles of radar were developed during World War II, primari ly by scient isis
in Great Britain and the United States, the use of echoes as an aid to navigation is not a
new development.
Before the invention of radar, when running in fog near a rugged shoreline, sliips would
sound a short biast on their whistles, fire a shot, or strike a beil. The time between the
origination of the sound and the returning of the echo indicated how far the ship was
from the cliffs or the shore. The direction from which the echo was heard indicated the
relative bearing of the shore.
Today, the method of determining the distance to a target is mueh more accurate becausc
of pulse-modulated radar. Pulse-modulated radar determines the distance to the target
by calculating the time difference between the transmission of a radar signal and the
reception of the reflected echo. It is a known faet that radar waves travel at a nearly
constant speed of 162,000 nautical miles per second. Therefore the time required for a
transmitted signal to travel to the target and return as an echo to the source is a measure
of the distance to the target. Note that the echo makes a complete round trip, but only
half the time of travel is needed to determine the one-way distance to the target. This
radar automatically takes this into account in making the range calculation.
The bearing to a target found by the radar is determined by the direction in which the
radar scanner antenna is pointing when it emits an electronic pulse and then receives a
returning echo. Each time the scanner rotates pulses are transmitted in the full 360®
circle, each pulse at a slightly different bearing from the previous one. Therefore, if we
know the direction in which the signal is sent out we know the direction from which tlie
echo must return.
Note that the speed of the radar waves out to the target and back again as echoes is
extremely fast compared to the speed of rotation of the antenna. By the time radar
echoes have returned to the scanner, the amount of scanner rotation after initial
transmission of the radar pulse is extremely small.
The range and bearing of a target is display ed on what is called a Plan Position Indicator
or PPI. This display is essentially a polar diagram, with the transmitting ship's position at
ghe center. Images of target echoes (sometimes called a "pip") are received and displayed
at their relative bearings, and at their distance from the PPI center. With a continuous
display of the images of targets, the motion of the transmitting ship is also displayed.
Fig.1-1 How Radar Works
(L6
1-1
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Troubleshooting
