Raymarine Radar Scanner User Manual

Pathfinder
Radar
Scanners

Owner’s
Handbook

Document number: 81154_4
Date: 25th October 2000

Pathfinder Radar Scanners i

Pathfinder Radar Scanners Owners Handbook

October 2000

SAFETY NOTICES

This radar equipment must be installed and operated in accord­ance with the instructions contained in this manual. Failure to do
so can result in personal injury and/or navigational inaccuracies.
In particular:

1. High Voltage. The scanner unit contains high voltages. Adjust-

ments require specialised service procedures and tools only avail­able to qualified service technicians – there are no user
serviceable parts or adjustments. The operator should never
remove the scanner unit internal covers or attempt to service the
equipment.

2. Electromagnetic Energy. The radar scanner transmits electro-

magnetic energy. It is important that the radar is turned off when­ever personnel are required to come close to the scanner to
perform work on the scanner assembly or associated equipment.

It is recommended that the radar scanner is mounted out of range
of personnel (above head height).

Do not look directly at the antenna at close range as your eyes are
the most sensitive part of the body to electromagnetic energy.

When properly installed and operated, the use of this radar will
conform to the requirements of ANSI/IEEE C95.1-1992 Standard
for Safety Levels with Respect to Human Exposure to Radio Fre­quency Electromagnetic Fields, 3 Hz to 300 GHz and NRPB,
Board Statement on Restrictions on Human Exposure to Static
and Time Varying Electromagnetic Fields and Radiation, Doc
NRPB, No. 5 (1993).

3. Navigation Aid. This radar unit is only an aid to navigation. Its
accuracy can be affected by many factors, including equipment
failure or defects, environmental conditions, and improper han­dling or use. It is the user’s responsibility to exercise common
prudence and navigational judgements. This radar unit should not
be relied upon as a substitute for such prudence and judgement.

ii Pathfinder Radar Scanners

RAYTHEON MARINE products are supported by a network of
Authorized Service Representatives. For information on Raytheon
products and services, contact either of the following:

United States Raytheon Marine Company

Recreational Products
22 Cotton Road, Suite 280
Nashua
NH 03063-4219, USA
Telephone [phone]
Fax [phone]
www.raymarine.com

Europe Raytheon Marine Limited

Anchorage Park
Portsmouth
Hampshire PO3 5TD
England
Telephone [phone]
Fax [phone]
www.raymarine.com

Copyright © Raytheon Marine Company 2000

The technical and graphical information contained in this hand­book, to the best of our knowledge, was correct as it went to press.
However, the Raytheon policy of continuous improvement and
updating may change product specifications without prior notice.
As a result, unavoidable differences between the product and
handbook may occur from time to time, for which liability cannot
be accepted by Raytheon.

Raytheon is a registered trademark of Raytheon Company.
SeaTalk is a registered trademark of Raytheon Marine Europe
Limited.
HSB is a trademark of Raytheon Marine Company.
Pathfinder is a trademark of Raytheon Marine Company.

Pathfinder Radar Scanners iii

Preface

This handbook describes the following Raytheon Pathfinder radar
scanners:

2D 18" 2 kW Radome Scanner
4D 24" 4 kW Radome Scanner
5S 48" 4 kW Open Array Scanner
7S 72" 4 kW Open Array Scanner
9S 48" 1 0 kW Open Array Scanner
11S 72" 10 kW Open Array Scanner

These scanner units may be connected to any HSB display unit. In
addition, the 2D and 4D radome scanner units may be connected
to SL70, or Autohelm 7" LCD display.

CAUTION:

The open array scanners must not be used with the SL70 or
Autohelm 7" LCD Display Unit. This may resu lt in damage to the
display due to the high power requirements of the open array
scanner.

The handbook contains very important information on the instal­lation and operation of your new equipment. In order to obtain the
best results in operation and performance, please read this hand­book thoroughly.

Raytheon’s Product Support representatives or your local dealer
will be available to answer any questions you may have.

Display Software Version

For full operation of the open array scanners, the display unit
requires an appropriate software version. For new displays, the
correct software version is normally already installed in the dis­play unit and is fully compatible with the 2D and 4D radome
scanners.

Early display units may not have the correct software for use with
open array scanners and will therefore require upgrading.
The software version can be confirmed by switching-on the dis­play and checking the version number during the magnetron
warm-up sequence.

iv Pathfinder Radar Scanners

Note: If a scanner unit is not connected the version number i s only
displayed for 10 seconds.

Where, necessary Software Upgrade Kits are available from your
dealer, distributor or from Raytheon Marine.

We recommend that where a repeater display is fitted, both the
repeater and the master display are upgraded.

Warranty

To register your Pathfinder Radar Scanner ownership, please take
a few minutes to fill out the warranty registration card found at the
end of this handbook. It is very important that you complete the
owner information and return the card to the factory in order to
receive full warranty benefits.

The radome scanner package includes a barcode label indicating
the serial number of the unit. This label should be stuck to the
warranty registration card.
The open array scanner has two barcode labels indicating the
serial numbers of the pedestal and the antenna units. Both labels
should be stuck to the warranty registration card.

EMC Conformance

All Raytheon equipment and accessories are designed to the best
industry standards for use in the leisure marine environment.

The design and manufacture of Raytheon equipment and accesso­ries conform to the appropriate Electromagnetic Compatibility
(EMC) standards, but correct installation is required to ensure that
performance is not compromised.

Contents v

Contents

Preface ................................................................................. iii

W arranty ...........................................................................iv

EMC Conformance ..........................................................iv

Chapter 1: Overview ...............................................................................1

1.1 Introduction .......................................................................1

EMC installation guidelines .............................................2

1.2 Unpacking and inspecting the components ......................4

1.3 Selecting the scanner unit site ........................................... 5

1.4 Cable runs ....................................................................... 11

Radome scanner cables ...................................................13

Open array scanner cables ...............................................16

Chapter 2: Installing the Scanner .......................................................21

2.1 Radome scanner .............................................................. 21

Securing the radome scanner to the mounting surface .... 21

Connecting the radome scanner inter-unit cable ............. 22

2.2 Open array scanner .........................................................27

Securing the pedestal to the mounting platform ..............28

Connecting the open array scanner inter-unit cable ........29

Fitting the open array to the pedestal ...............................33

2.3 System connections ........................................................34

DC power connection .....................................................34

Scanner connection .........................................................35

Display unit connection .................................................. 37

Chapter 3: Post Installation Checks and Maintenance ....................39

EMC Conformance ......................................................... 39

3.1 System Checks and Alignment .......................................39

System check .................................................................. 39

Set up, alignment and timing checks ............................... 39

72" open array position alignment ..................................40

3.2 Maintenance ....................................................................41

Warnings ......................................................................... 41

Routine Checks ...............................................................41

Servicing and Safety ....................................................... 41

3.3 Problem Solving .............................................................42

How to Contact Raytheon (US) ...................................... 43

How to Contact Raytheon (Europe) ................................ 44

W orldwide Support .........................................................45

vi Pathfinder Radar Scanners

Appendix A: Specification ...........................................................47

2D 18" Radome Scanner Unit ........................................47

4D 24" Radome Scanner Unit ........................................48

5S and 9S 48" Open Array Scanner Unit ........................50

7S and 11S 72" Open Array Scanner Unit ......................53

Index .......................................................................... i

Chapter 1: Overview 1

Chapter 1: Overview

1.1 Introduction

This handbook provides instructions to assis t you in the installation
and set up of the following radar scanners:

2D 18" 2 kW Radome Scanner
4D 24" 4 kW Radome Scanner
5S 48" 4 kW Open Array Scanner
7S 72" 4 kW Open Array Scanner
9S 48" 10 kW Open Array Scanner
11S 72" 10 kW Open Array Scanner

These scanner units may be connected to any HSB display un it. In
addition the 2D and 4D radome scanner units may be connected to
SL70, or Autohelm 7" LCD display .

A typical Pathfinder Radar system is illustrat ed below .

Scanner

HSB Series Display

GPS

Compass

NMEA

Distribution Panel

12/24V Supply

12V Supply

SeaTalk

12V Supply

Junction

Box

D4288-3

2 Pathfinder Radar Scanners

CAUTION:

Do not use the open array scanner with an SL70 or Autohelm 7"
LCD display unit. Failure to observe this may result in
permanen t damage to these disp lay units.
The 10 kW open array scanner requir es 24 V or higher; it will not
operate on 12 V systems.

This handbook is divided into three chapters as follows :
Chapter One provides an overview of the scanner installation. It

includes sections on Unpacking and Inspecting the Components,
Selecting the Scanner Site and a description of the Cable Runs.

Chapter Two pr ovides detailed instructions on how to mount and
connect each type of scanner.

Chapter Three provides instructions on how to perform the system
checks, alignment and adjustments. It also provi des information on
maintenance and what to do if you have problems.

EMC installation guidelines

All Raytheon equipment and accessories are designed to the best
industry standards for use in the leisure marine environment.

Their design and manufacture conforms to the appropriate
Electromagnetic Compatibility (EMC) standards, but correct
installation is required to ensure that performance is not
compromised. Although every effort has been ta ken to ensure that
they will perform under all conditions, it is importa nt to understand
what factors could affect the operation of the product.

The guidelines given here describe the conditions for opti mum EMC
performance, but it is recognized that it may not be possible to meet
all of these conditions in all situations. T o ensure the best possible
conditions for EMC performance within the constraints imposed by
any location, always ensure the maximum separation possible
between different items of electrical equipment.

For optimum EMC perform ance, it is recommended that wherever
possible:

• Raytheon equipment and cables connected to it are:

• At least 1 m (3 ft) from any equipment transmitting or cables
carrying radio signals e.g. VHF radios, cables and antennas.

Chapter 1: Overview 3

In the case of SSB radios, the distance should be increased to
2 m (7 ft).

• More than 2 m (7 ft) from the path of a radar beam. A radar
beam can normally be assumed to spread 20 degrees above
and below the radiating element.

• The equipment is supplied from a separate battery from that used
for engine start. Voltage drops below 10 V (20 V for 10 kW open
array scanners) in the power supply to our products, and starter
motor tra nsients , can caus e the equip ment to re set. Thi s will not
damage the equipment, but may cause the loss of some informa­tion and may change the operating mode.

• Raytheon specified cables are used at all times. Cutting and
rejoining these cables can compromise EMC performance and so
must be avoided unless doing so is detail ed in the installation
manual.

• If a suppression ferrite is attached to a cable, this ferrite should not
be removed. If the ferrite needs to be removed during installation
it must be reassembled in the same position. Section 2.1 Installing
the Radome Scanner includes instructions on fitting a ferri te.

The following illustration show s a typical range of suppression
ferrites fitted to Raytheon equipment.

D3548-2

Connections to Other Equipment

If your Raytheon equipment is to be connected to other equipment
using a cable not supplied by Raytheon, a suppressi on ferrite MUST
always be fitted to the cable close to the Raytheon unit.

4 Pathfinder Radar Scanners

1.2 Unpacking and inspecting the components

Unpack your system carefully , to prevent damage to the equipment. It
is good practice to save the carton and packing for future use, in case
you need to return the unit for service. Check that you have all the
correct system components. These depend on your system package,
as detailed in the following tables.

Table 1-1: Radome scanners

Item Part No. Supplied with:

Option
for:

2D 18" 2 kW Radome Scanner
2DE 18" 2 kW Radome Scanner
4D 24" 4 kW Radome Scanner

Inter-unit cable 15 m heavy
Inter-unit cable 25 m heavy
Inter-unit cable 10 m light
Inter-unit cable 15 m light

Extension cable 5 m
Extension cable 10 m

Mast Mount 18" Scanner
Mast Mount 24" Scanner

Radar Interface adapter
(To fit radome to M88390 type 18"
mast mount)

Radome mounting interface plate M92731 - 2D

Supplied with HSB Series Display Unit

Supplied with HSB Series Display Unit

Supplied with HSB Series Display UnitSupplied with HSB Series Display Unit
Fer rite Cla mp

M92650
M92650E
M92652

M92668
M92669
M92692
M92720

M92699
M92700--

M92722
M92698--

M92721 - 2D

R55007 - Both

US Version
European Version

-

4D

­2D (US version)
2D (Europe version)

-

-

-

­Both

-

-

Both
Both

2D
4D

Table 1-2: Open array scanners

Item Part No. Supplied with: Option for:

4 kW Scanner Pedestal
10 kW Scanner Pedestal

48" Open Array
72" Open Array

Inter-unit cable 15 m heavy
Inter-unit cable 25 m heavy

Cable kit: 5 m +10 m extension
(To fit open array scanner on a
radar arch)

M92654
M92655

M92693
M92743

M92728
M92705

E55017

5S, 7S
9S, 11S
(

24/32V only)

5S, 9S
7S, 11S

-

-

-

-

-

-

-

5S,7S, 9S, 11S
5S, 7S, 9S, 11S
(

24/32V only)

5S, 7S, 9S,11S

Chapter 1: Overview 5

Table 1-2:Open array scanners

Item Part No. Supplied with: Option for:

Extension cable 5m

Extension cable 10m

Software Upgrade Kit Please contact your authorized dealer or

M92699

M92700--

distributor for details

1.3 Selecting the scanner unit site

This section provides information that affects the possible locations
of the scanner, and its position relative to the display unit and t o the
power supply .

The dimensions of the each scanner unit are shown in the following
diagrams.

Selecting the best location for the scanner unit requires careful
consideration of the following points, to ensure reliable and trouble
free operation:

Note: In order to minimize potential interference to other sys tems on
board ship (EMC), it is advisable to mo unt the scanner on a part of
the boat that is insulated from the ship’s bat tery negative. If you can­not do this, and encounter problems, you can fit insulating bus hes be­tween the scanner and its mounting bracket.

• Height: The scanner unit should normally be mounted as high as
practical above the waterline, for three reasons:

• For safety reasons the scanner should be out of range of per-

sonnel, preferably above head height. This avoids mechanical
danger and electromagnetic contact, particularly with the
eyes.

• Radar operates at the line-of-sight, so a high mounting posi-

tion gives better long range performance.

• Surrounding large objects, in the same horizontal plane, can

interfere with the radar signal and cause blind areas or shadow

sectors and false targets on the radar screen (see below).
However, do not mount the scanner so high that it is affected by
the pitching and rolling of the vessel. In addition, you may need to
lower the scanner to avoid creating a shadow sector underneath
the scanner’s beam.

5S, 7S, 9S, 11S
(24/32V only)
5S, 7S, 9S, 11S

6 Pathfinder Radar Scanners

151.25 mm (5.95 in)

141.5 mm (5.6 in)

185.15 mm (7.3 in)

Rear

Rear

Rear

(4.6 in)

116.5 mm

302.5 mm (11.9 in)

468 mm (18.4 in) dia.

233 mm (9.2 in)

Weight: 6.5 kg (14.3 lbs)

Compass safe distance: 1 m (33 in)

18" Radome Scanner

402 mm (15.8 in)

599 mm (23.6 in) dia.

227 mm (8.9 in)

D3224_4

227 mm (8.9 in)

141.5 mm (5.6 in)

Rear

(4.6 in)

116.5 mm

233 mm (9.2 in)

Weight: 7.5 kg (16.5lbs)

Compass Safe Distance: 1m (33")

24" Radome Scanner

D3228_5

Chapter 1: Overview 7

Open Array Scanners

48"- 1306 mm (51.4 in), 72"- 1918 mm (75.5 in)

Centre of rotation

100 mm (4 in)

427 mm (16.8 in)

140 mm (5.5 in)

Centre of rotation

406 mm (16 in)

296 mm (11.65 in)

150 mm (6 in)

Weight

Pedestal: 24 kg (53.0 lb)
48" Open Array: 6 kg (13.2 lb)
72" Open Array: 9.4 kg (20.7 lb)

Compass Safe Distance: 1 m (33 in)

Minimum clearance 630 mm (24.8 in)

70 mm

(2.75 in)

Minimum clearance height 510 mm (20.1 in)

D4572-3

8 Pathfinder Radar Scanners

• Access: The scann er unit site sh ould be easily accessible to allow

maintenance to be carried out safely .

• Magnetic compass: Mount the scanner unit at least 1 m away

from a magnetic compass.

• Cable run: The maximum length of cable between the display

unit and the scanner unit should not normally exceed 20 m (60 ft)
for radome scanners, or 15 m (45 ft) for open array scanners. If
you need to use a longer cable power cable lengths must be con­sidered, refer to Section 1.4 Cable Runs to determine appropriate
lengths.

• Shadow sectors and false echoes: Mount the scanner away from

large structures or equipment, such as the fly bridge, large engine
stacks, searchlights, horns, or masts. It is particularly important to
avoid shadow sectors near the bow . Raising or even lowering the
scanner may help to reduce these effects.
In shadow areas beyond the obstruction there will be a reduction
of the beam intensity , although not necessarily a complete cut-of f;
there will be a blind sector if the subtended angle is more than a
few degrees.
In some shadow sectors the beam intensity may not be suf ficient
to obtain an echo from a very small object, even at close range,
despite the fact that a large vessel can be detected at a much
greater range. For this reason the angular width and relative bear­ing of any shadow sector must be determined at installat ion.
Sometimes shadowing can be seen by increasing the radar gain
until noise is present. Dark sectors indicate possible shadowed
areas. This information should be posted near the display unit and
operators must be alert for targets in these blind sectors.

It should also be noted that wet s ails create shadow areas and thus
sail boat operators should be aware that radar performance may
reduce in rain.
If you mount the scanner on a mast, echoes from the mast may
appear on the radar display . These can be minimized by placing
absorbing material, such as a block of wood, between the scanner
and mast.

• Platform rigidity/stability: The scanner platform should not

twist (causing bearing errors) or be subject to excessive vibration.

• Heat/fumes: Mount the scanner away from the top of exhaust

stacks, since the scanner and cables can be damaged by excessive
heat and the corrosive effects of exhaust gases.

Chapter 1: Overview 9

For open array scanners you should also consider the followi ng
points:

• Mounting Platform: The platform must be mechanically secure

and capable of supporting the mass and inertia of the open array
scanner. The complete unit weighs: 48" scann er - 30 kg (66.2 lb);
72" scanner - 33.4 kg (73.7 lb).

• The site must be clear of ropes and moving rigging.

• Sufficient clearance must be allowed to fully open the open array

pedestal for maintenance.

Mounting surface: sailboats

The scanner unit can be installed on a mast platform, an arch, or a
bridge structure. Make sure that the platform surface is flat and the
scanner unit drain hole (radome scanners) is not obstructed.
Raytheon recommends that radome scanner units are best suited for
sailboat operation as open array systems are more dif ficult to protect
from ropes and sails.

For sailboat installations, Raytheon offers a universal mast mount ki t
for each radome scanner type. This optional mount is used to fit a
radome scanner to a flat surface on a mast with a minimum diameter
of 60 mm (2½ in). When using the mast mount ki t, appropriate
hardware should be used for the style and structure of the mast aboard
the vessel. T ypically , the scanner will be mounted near the first set of
mast spreaders. If there is any doubt concerning the appropriate type
of hardware, consult your boat dealer or representative for their
recommendations.

Depending on the type of sailboat, a radar scanner guard should be
installed if the sails could touch the scanner or platform. W ithout a
proper radar guard the mounting platform an d the radar scanner could
be severely damaged.

Mounting surface: power boats

On many small vessels the scanner unit can be installed on a mast
platform, an arch, or a bridge structure, but take care to follow the
scanner site guidelines, particularly regarding height . If necessary ,
construct a radar mounting platform to obtain a suf ficiently high
mounting position. Make sure that the platform surface is flat and the
scanner unit drain hole (radome scanners) is not obstructed. Ensure
the platform is strong enough to support the maximum s hock loads
likely to occur.

10 Pathfinder Radar Scanners

Setting the radiation plane

The scanner unit should be mounted so that the array rotates parall el
to the waterline. The radar beam is approximately 25° wide in the
vertical direction, providing good target det ection during the vessel’s
pitching and rolling.

12.5˚

12.5˚

Waterline

Ideal Radiation Plane

Planing hull vessels, and some displacement hull vessels, adopt a
higher bow angle when the vessel is at its cruising speed. In many
cases this substantially alters and raises the radar’s main radiation
plane, and can cause poor detection of nearby targets. It may be
helpful to lower the radar beam back towards the parallel, by
shimming th e rear of th e radar , so that the beam p oints slig htly
downwards with respect to the waterline when the vessel is at rest.

D3223-2

Wedge or
washers

Forward

Using shims to lower the main beam

D3229-3

The shims may be made from aluminium plate wedges, simple flat
washers, or an angled wooden block. For thick shims, you may need
longer securing bolts than the M8x40 bolts supplied with the radome
scanner, or the M10 studdi ng supplied with the open array scanners.

Chapter 1: Overview 11

1.4 Cable runs

Y ou need to consider the following before installing the system
cables:

• Y ou need to fit the inter-unit cable and the power cable.

• All cables should be adequately clamped and protected from

physical damage and exposure to heat - avoid running cabl es
through bilges or doorways, or close to mo ving or hot objects.

• Acute bends must be avoided.

• Where a cable passes through an exposed bulkhead or deckhead,

a watertight gland or swan neck tube should be used .

• Avoid cutting and re-joining cables (if necess ary, refer to the notes
below).

Y ou need to run the following cables:

CAUTION:

Do not pull the cable through bulkheads using a cord attached to
the connector . This could damage the connections.

• Inter-unit cable. A vinyl-covered and shielded cable is supplied
with the radome scanner unit. The cable has a connector plug at
one end for connecting to the display unit or exten sion cable; the
other end of the radome scanner cable is fitted with an 8-wa y plug
and power cores (covered by a clear protective sleeve) for con­necting to the scanner.
For open array scanners, various length cables are available.
These cables have a connector plug at one end for connecting to
the display unit or extension cable; th e other end is prepared ready
to fit to the power and signal connectors (see Section 2.2)

• Power cable. The scanner receives power via the display unit; the
power cable is supplied with the display unit. How ever, cable
details are provided in this section.

Rejoining Cables

Y ou should avoid cut ting and re-joining cables. If this is necessary
you must:

• Fit a ferrite on each side of the join. The specif ic ferrite to use
depends on the cable type - contact Raytheon Marine for details.

• Take care not to damage any of the wires. Make sure that all the
wires and, in particular, the screen are reconnected correctly .

12 Pathfinder Radar Scanners

If you are mounting the scanner on the mast of a sailboat, and will
need to unstep the mast, you should inst all a suitable junction box
inside the boat.
On a radome scanner, the junction b ox should provide an 11 - or 13­way terminal strip, depending on the number of power cores in your
cable, with a 10 A rating. Also, you should keep the length of t he un­screened coaxial cores to less than 30 mm to maintain EMC
conformance.

On an open array scanner, the j unction box should provide a 13-way
terminal strip with a 20 A rating for power cores. It is essential that all
4 power cores are connected and that the connection is of very low
resistance as considerable power passes through this connection.
Also, you should keep the length of the un-screened coaxial cores to
less than 30 mm to maintain EMC conformance.

Inter-unit cable

The inter-unit cable entrance is at the rear of the scanner unit. If the
unit is mounted on a holl ow mast the cable may be run inside the mast
and then fed through the radar’s cable entrance. Make sure that the
cable does not chafe where it enters and exits the mast.

Note: Rout e the cable from the display up t o the scanner , since this
will require the smallest clearance hole.

CAUTION:

The display connector on the inter-unit cable is a moulded plug
that cannot be replaced. DO NOT r emove this moulded plug.

The inter-unit cable, for connecting the scanner to the display unit,
depends on your scanner package as follows:

Table 1-3: Inter Unit Cables required for each Scanner Type

Scanner Package Inter-Unit Cable

2D (US) 10 m light (2 power cores)

2DE (European) 15 m light (2 power cores)

4D 15 m heavy (4 power cores)

5S, 7S (4 kW) and 9S, 11S (10 kW)

All 10 kW systems require a

Note:

minimum of 24 V.

15 m heavy or radar arch kit
(5 m + 10 m extension)
25 m heavy (24/32 V systems only)

The minimum bends permitted are:

Minimum bend, light cable 60 mm (~2.5 in) radius
Minimum bend, heavy cable 82 mm (~3.75 in) radius

Chapter 1: Overview 13

Radome scanner cables

Inter-unit cable

The length of the supplied cable should be su fficient to complete the
cable run required on most small vessels. For longer runs, addi tional
or replacement cables are available, which have 4 power cores to
minimize voltage drops over the longer cable run: these optional
cables include 5 m and 10 m extension cables, and a 25 m
replacement cable.

The maximum inter-unit cab le length is limited by the minimum
supply voltage, the scanner type (18" radome or 24" radome), and the
cable type (2 or 4 power cores): if a mix of light and heavy cables is
used, only 2 power cores are connected through.

Note: For vessels with 24 V power systems, any combination of inter­unit cables can be used.

For vessels with 12 V power systems, the recommended cable(s) for
different run lengths are given in the fol lowing table, which assumes
a minimum supply voltage of 10.7 V (the lowest vol tage likely to be
reached by a 12 V battery in normal marine use). Do not use cable

combinations that are not included in the table.

Table 1-4: Recommended Radome Inter-Unit Cable(s) for Vessels with

12 V Power Systems

Inter-Unit Cable

Length Required (m

10 Std 10 m light N/A N/A

15 Std + 5 m ext Std 15 m light Std 15 m heavy

20 Std + 10 m ext 25 m assembly Std + 5 m ext

25 25 m assembly 25 m assembly Std + 10 m ext

30 25 m + 5 m ext 25 m + 5 m ext 25 m + 5 m ext

35 25 m + 10 m ext 25 m + 10 m ext 25 m + 10 m ext

)

2D (US) 2DE (Eur) 4D

Scanner Package

Refer to the packing list in Section 1 .2 for cable part numbers

Note: T his table applies to systems using t he standard 1.5 m power
cable. If you extend the power cable you may need to select different
inter-unit cable(s), as discussed in t he following section Power Ca­ble.

14 Pathfinder Radar Scanners

Power cable

The radome radar systems are intended for use on ships’ DC power
systems operating in the 10.7 to 32 V DC range (that is, 12 V and 24 V
systems, not 32 V systems). A 1.5 m (5 ft) power cable is s upplied
(with the display unit) for connect ing the ship’s DC power to the radar
scanner via the display unit. Refer to the HSB Series Display Owner’s
Handbook for details on connecting this cabl e. This section provides
details for extending the length of the power cable.

If a longer power cable run is required, use the supplied power cable
to connect to the display unit. Then use a suitable connector block to
connect the free end to the extension cable. The supplied power cable
has a cross-section of 2.0 mm

2

.

Note: For vessels with 24 V power systems, the power cable may be
extended by up to 20 m using a wire gauge of 1.5 mm

2

(AWG 16) or

greater, irrespective of the inter-unit cable length.

For vessels with 12 V power systems, longer power cable runs may
require larger wire gauges to minimize any voltage drop in the cable.
The scanner type and the length and type of the inter-unit cable (see
tables) also affect the wire gauge required for the extension pow er
cable. In order to determine the correct supply cable size if the power
cable must be extended, estimate the length of cable between the
ship’s main power source and the connector block, and then select the
wire size indicated by the distance and inter-unit cable in the
appropriate table following.

For example, you might have a 24" scanner, w ith 20 m between the
scanner and display unit, that you plan to connect by extending th e
supplied 15 m heavy inter-unit cable with a 5 m extension cab le. In
addition, your 12 V power supply might be 10 m from t he display
unit, requiring an extension of 8.5 m. T o determine the wire gauge
required for the power cable extension, refer to the table for the 24"
scanner, go to the row labelled 15 m Heavy + 5 m ext, and read across
until you come to a maximum cable length greater than 8.5 m. Th is is
the 10 m entry , in the column for 4.0 mm

2

wire gauge.

Chapter 1: Overview 15

Table 1-5: Max. Extension Power Cable Lengths (m), 12 V Systems -

18" Radome Scanner

Inter-Unit Cable(s) Power Cable Core (each core)

mm2:

1.5162.0

AWG:

10 m Light 5.0 7.0 9.0 14.0 20.0 35.0

10 m Light + 5 m ext 1.0 2.0 3.0 4.5 7.0 12.0

10 m Light + 10 m ext Do NOT extend the power cable

15 m Light 1.0 2.0 3.0 4.5 7.0 12.0

15 m Heavy 7.0 10.0 13.0 20.0 30.0 50.0

15 m Heavy + 5 m ext 5.0 7.0 10.0 15.0 25.0 40.0

25 m Heavy 4.5 6.0 8.0 12.0 20.0 35.0

25 m Heavy + 5 m ext 3.5 4.5 6.0 9.0 15.0 25.0

25 m Heavy + 10 m ext 2.0 3.0 4.0 6.0 9.0 15.0

15

2.5
14

4.0
11

6.0
10

10.0
7

Note: If you have an 18" radome scanner, and the wire gauge re­quired for your extended power cable is unacceptably large, you
should replace the supplied light (2 power core) inter-uni t cable with
the 25 m heavy (4 power core) inter-unit cable assembly (see t able).

Table 1-6: Max. Extension Power Cable Lengths (m), 12 V Systems -

24" Radome Scanner

Inter-Unit Cable(s) Power Cable Core (each core)

mm2:

1.5162.0152.5144.0

AWG:

15 m Heavy 5.0 7.0 9.0 14.0 20.0 35.0

15 m Heavy + 5 m ext 4.0 5.0 6.0 10.0 15.0 25.0

15 m Heavy + 10 m ext 2.0 3.0 4.0 7.0 10.0 17.0

25 m Heavy 2.0 3.0 4.0 7.0 10.0 17.0

25 m Heavy + 5 m ext 1.0 1.5 2.0 3.0 4.0 8.0

25 m Heavy + 10 m ext Do NOT extend the power cable

11

6.0
10

10.0
7

16 Pathfinder Radar Scanners

Open array scanner cables

Inter-unit cable

Heavy duty cables are available in 15 m and 25 m lengths which
should be sufficient to complete t he cable run required on most small
vessels. For longer runs, 5 m and 10 m extension cables are available,
both have 4 power cores to minimize voltage dr ops over the cable run
and incorporate in-line moulded plugs.

The maximum inter-unit cable length is limited by the minimum
supply voltage and the scanner type.

CAUTION:

10 kW scanner systems cannot be used directly with 12 V
systems; they require a 12 V to 24 V converter rated to 180 W .
Contact your authorized Raytheon dealer or distributor for
details.

12 V Systems (4 kW scanners only)

For vessels with 12 V power systems, the recommended cable(s) for
different run lengths are given in t he following table, which assumes
a minimum supply voltage of 10.7 V (the lowest v oltage likely to be
reached by a 12 V battery in normal marine use). Do not use cable

combinations that are not included in the table.

Table 1-7: Recommended 4 kW Open Array Scanner Inter-Unit Cable(s)

for Vessels with 12 V Power Systems

Inter-Unit Cable

Length Required (m)

5 5m heavy

15
15

4 kW Scanners

15 m heavy
5 m heavy + 10 m extension

Refer to the packing list in Section 1.2 f or cable part numbers

24 V and 32 V Systems - 4 kW scanners

For vessels with 24 V and 32 V power systems, any combinat ion of
inter-unit cable up to a maximum length of 35 m can b e used.

Chapter 1: Overview 17

24 V and 32 V Systems - 10kW scanners

10 kW open array scanners can use any combination of inter-unit
cable up to a maximum length of 35 m. However , these systems use
considerable power and installations sh ould be planned to minimize
all cable lengths. Refer to the tables on page 1-19, Max. Exte nsion

Power Cable Lengths (m) - 10 kW Scanner.

Power cable

The open array scanner systems are intended for use on ships’ DC
power systems operating in the following ranges:

4 kW 10.7 to 44 V DC range (that is, 12 V , 24 V and 32 V systems)
10 kW 20 to 44 V DC range (that is, 24 V and 32 V systems).

CAUTION:

10 kW open array scanner systems cannot be used directly with
12 V systems; they require a 12 V to 24 V converter rated to
180 W . Contact your authorized Raytheon de aler or distributor
for details.

Open array scanners draw considerable power from the vessels
power source, especially in high wind speeds. It is essential for
reliable operation that the unit is supplied with a low resistance power
cable system, especially when operated from a 12 V power system.

CAUTION:

Do not use the open array scanner with an SL70 or Autohel m 7"
LCD display unit. Failur e to observe this may r esult in
permanent damage to the display unit.

12 V systems (4 kW scanners only)

Extensions to the supplied power cable must be kept t o a minimum
and the power should be fed directly from the output of the battery
isolator switch via its own dedicated cable system. It is recommended
that no additional power switch is included in this power cable.

CAUTION:

The display unit does not include a fuse for scanner power, so an
in-line fuse or circuit breaker MUST be included in the power
cable.

All power connections must be of high quality to mi nimize their
resistance and to remove the risk of accidental shorts. Recommended

18 Pathfinder Radar Scanners

maximum power cable extensions are given i n the table below . These
figures relate to the total cable extension, from the end of the supplied

1.5 m power cable to the system battery terminals. Do not exceed
these lengths as unreliable operation may result.

Table 1-8: Max. Extension Power Cable Lengths (m), 12 V Systems -

4 kW scanners

Power Cable Core Size (each core)

mm2:

4.0

AWG:

11

4 kW Scanners <3.0 4.5 6.0 7.5

6.0
10

8.0
8

10.0
7

Note: If the required extension results in unacceptably large diam e­ter cables, use two or more smaller gauge wir es to achieve the re­quired copper wire cross-section. For exampl e, using two pairs of

2

2mm

is equivalent to using two single 4.0 mm2 cables.

24 V and 32 V systems

These systems are less sensitive than 12 V systems to voltage loss in
the power cables. However, it is still necessary to use adequate cables
to prevent excessive power loss. The table below gives the
recommended wire gauge for different power cable extension
lengths. Raytheon recommends that power is fed directly from the
output of the battery isolator switch via its own dedicated cable
system.

CAUTION:

The display unit does not include a fuse for scanner power, so an
in-line fuse or circuit breaker MUST be included in the power
cable.

Note: If the required extension results in unacceptably large diam e-

ter cables, use two or more smaller gauge wir es to achieve the re­quired copper wire cross-section. For exampl e, using two pairs of 2

2

mm

is equivalent to using two single 4.0 mm2 cables.

Chapter 1: Overview 19

Table 1-9: Max. Extension Power Cable Lengths (m), 24/32 V Systems -

4 kW Scanners

Power Cable Core Size (each core)

mm2:

2.0

AWG:

14

4 kW Scanners 8.0 16.0 24 32 35

4.0
11

6.0
10

8.0
8

10.0
7

Table 1-10:Max. Extension Power Cable Lengths (m), 24 V Systems -

10 kW Scanners

Inter-Unit Cable(s) Power Cable Core (each core)

mm2:

1.5

AWG:

16

5 m Heavy 12.0 16.0 20.0 32.0

10 m Heavy 10.5 14.0 18.0 28.0

15 m Heavy 9.0 12.0 16.0 24.0

15 m Heavy + 5 m ext 7.5 10.0 13.0 20.0

15 m Heavy + 10 m ext 6.0 8.0 10.0 16.0

25 m Heavy 6.0 8.0 10.0 16.0

25 m Heavy + 5 m ext 4.5 6.0 8.0 12.0

25 m Heavy + 10 m ext. 3.0 4.0 5.0 8.0

2.0
15

2.5
14

4.0
11

Table 1-11:Max. Extension Power Cable Lengths (m), 32 V Systems -

10 kW Scanners

Power Cable Core Size (each core)

mm2:

10 kW Scanners

AWG:

1.5
16

≤≤≤≤

15.0

2.0
15

≤≤≤≤

20.0

2.5
14

≤≤≤≤

25.0

20 Pathfinder Radar Scanners

Chapter 2: Installing the Scanner 21

Chapter 2: Installing the Scanner

2.1 Radome scanner

Securing the radome scanner to the mounting surface

CAUTION:

The drain tube must always be use d, but may be shor tened if
necessary

1. Using the paper template supplied with the scanner mounting kit,
mark the flat mounting surface with the mounting holes and drain
tube hole, and drill the holes as indicated on the template.
If it is impractical to drill a hole for the drain tube, then the scanner
unit should be mounted on 4 suitable spacers 10 mm high and the
drain tube length reduced by 10 mm. It will then be clear of the flat
surface and can still perform its function.

Note: If you are using a Raytheon mast mount bracket, the s urface is
pre-prepared.

Note: If you are mounting the scanner on a flat surface, you may find
it easier to fit the drain tube, as described in the following section, be­fore securing the scanner.

2. Position the scanner on the mou nting surface, ensuring that the
cable inlet is pointing aft.

3. Locate the bolts and washers supplied with the scanner, grease the
bolts, and secure the scanner to the mounting surface as sh own in
the following diagram. Tighten t he bolts to 20 Nm (14.7 lb ft);
ensure the scanner is tightly fitted.

22 Pathfinder Radar Scanners

Scanner base

Bitumen washer

Mounting bracket
or mounting surface

Greased mounting bolt

Y ou may need to use longer M8 mounting bolts to secure the scan­ner if you have used shims to lower the radar beam.

Connecting the radome scanner inter-unit cable

CAUTION:

Before wiring the scanner unit, make sure that the inter-unit
cable is not connected and power is not applied to the display
unit.

When you have run the inter-unit cable to the scanner location,
connect the cable as follows:

1. Loosen the 4 (18") or 7 (24") screws securing the scanner cover.
These screws are captive and should remain assembled to the
lower flange assembly. Press the radome inwards to release the
top. This breaks the seal and makes removal easier.

2. To avoid losing the scanner cover , tie the cord, attached to the
inside of the base of the scanner, to the eye provided i n the cover.

3. If you have a 24" scanner, unscrew and remove the inner cover:

D3995-3

Chapter 2: Installing the Scanner 23

Inner cover

D4006-2

4. Remove the drain tube from inside the base of the scanner, and
insert it into the drain hole as shown in the following diagram.
Pull the tube gently from outside the scanner so that it clips into
place.

D3937-2

24 Pathfinder Radar Scanners

5. Referring to the following illustration, remove the securing nut
(1) from the watertight gland and grommet (2), where the inter­unit cable (3) will enter the base.

8

7

6

5

4

11

White wire

2

1111 Securing nut 2222 Gland 3333 Inter-unit cable 4444 Eight-way plug 5555 Eight-way socket 6
7777 Terminal clamp 8

8 Screwdriver 9

8 8

9 Cable clamp 10

9 9

10 Cable clamp screws 11

1010

11 Ferrite clamp

1111

6. Slide the gland nut onto the inter-unit cable (3), and insert the
cable, still covered by its protective sleeve, through the gland into
the base.

7. Cut and remove the protective sleeve to expose the 8-way plug (4)
and power cores (6).

8. If the scanner is connected to an HSB Series Pathfinder Radar dis­play, fit the ferrite clamp (11), supplied loose with the display
unit, as follows:

10

9

1

3

D3230-4

6 Power cores (2 or 4)

6 6

Chapter 2: Installing the Scanner 25

CAUTION:

If any wires are damaged when the clamp is fitted, the scanner
unit will not function correctly .

• The ferrite clamp is supplied open. If the clamp has been
closed, insert a small, flat-blade screwdriver into the slots at
the end of the clamp opposite the hinge and twist gently .

• Position one-half of the clamp around the eight cores of the
inter-unit cable between the 8-way plug (4) and the cable
clamp, as close to the 8-way plug as possible. (It may be nec­essary to fit the clamp over the cable tie closest to the 8-way
plug – this will not af fect the ferrite clamp’s function).

Note: o n the 24" scanner, the clamp must be contained inside the in­ner cover.

• With the clamp positioned correctly, close the clamp ensuring
none of the cores are trapped by the hinge, latch or the ferrite
itself.

9. Connect the 8-way plug (4) to the connector (5). The correct fit­ting is with the small arrow marked on the body of the plug facing
upwards and to the left hand side. The grey wire will then be at the
left hand side and the white wire will be at the right hand side.

10. Connect the red and black power cores (6).
If you have a 10 m or light 15 m inter-unit cable, there is one pair
of cores. Connect the red cable lead to one of the terminal sockets
marked “+”, and the black cable lead to on e of the sockets marked
“-”.
If you have a heavy 15 m inter-unit cable, there are two pairs of
cores. Connect the red cable leads to the terminal sockets marked
“+”, and the black cable leads to the terminal sockets marked “-”,
with one lead in each socket.
The terminal clamps (7) are operated using a screwdriver (8), as
shown in the inset diagram on the previous page.

CAUTION:

Do not earth the cable screen to the scanner . The radar system is
earthed via the display unit.

11. Secure the nut (1) on the watertight gland, making sure that it
grips the cable’s outer s heath.

12. Secure the cable with the cable clamp (9), using the two screws
(10) provided. The clamp can be installed either way up, depend-

26 Pathfinder Radar Scanners

ing on the thickness of the cable: use the position that matches the
profile of the cable.

CAUTION:

It is essential that the drain tube is fitted and that the nut on the
watertight g land is adequately tightene d. If this is not done, wat er
could become trapped in the scanner and cause irr eparable
damage.

13. Tighten the securing nut (1) again to ensure a waterproof seal.

14. If you have a 4D scanner, replace the inner cover over the connec­tors.

15.Untie the cord from the scanner cover , and coil it up in the
base of the scanner unit so that it cannot foul the rotat ing
antenna.

16. Replace the scanner cover , aligning the mark on the cover with
the mark on the scanner base above the cable gland, and tighten
the 4 or 7 captive screws. Do not over-tighten these screws.

Chapter 2: Installing the Scanner 27

2.2 Open array scanner

Installation of the open array scanner should only be undertaken by a
competent installer . If you have any difficulty with t he installation,
please contact your local Raytheon Marine dealer or distributor .

The open array scanner is supplied in two sections; the pedestal unit
and the antenna. The pedestal unit is secured from below the
mounting platform. The open array is then secured to the pedestal.
Full details for mounting the scanner are given below .

CAUTION:

The pedestal unit has a cap fitted over the open array mounting
shaft to protect the protuding co-ax ial pin. This cap must be left
in place until the open array is fitted.
The pedestal base is fitted with a gasket: DO NOT gr ease this
gasket.

WARNING:

The open array scanner weighs: 48" scanner - 30 kg (66.2 lb); 72"
scanner - 33.4 kg (73.7 lb). For safety reas ons it is recommended
that the unit is not lifted by one person.
The unit is fitted with lifting eyes (maximum SWL 40 kg) to
facilitate the use of standard lifting accessories, e.g. ro pe, chain or
strop. The safe working load (SWL) of the lifting accesso ries
should be 150 kg. Suitable liftin g equipment could include a
crane, hoist, or an appropriate rigid, overhead structure.
Alternatively, the unit is suitable for a two person lift. Care
should be taken to ensure that each person is stan ding on a stable
surface, and that the pedestal is held carefully to ensure it cannot
slip.
The T-bar beneath the open array antenna can be used to aid
lifting.
Y ou should never lift the scanner by holding onto the open array
antenna.

28 Pathfinder Radar Scanners

Securing the pedestal to the mounting platform

1. Using the paper template supplied with the scanner mounting kit,
mark the flat mounting surface with the holes and drill as indi­cated on the template. Refer to Section 1.2 when selecting the
scanner unit site.

2. Stick the four self-adhesive bitumen washers over the mounting
holes.

3. Ensure the lifting eyes are securely fitted to the top of the pedestal,
and the yellow protective cap is in place.

CAUTION:

T o prevent damage to the internal mounting bar , ensur e the stud
penetration is no more than 32 mm into the pedestal base. W e
recommend you mark each stud with tape, 32 mm from one end,
to act as a gauge.

4. Grease the studs. Using two nuts locked together on the stud,
screw each stud into the pedestal to a maximum of 32 mm, or
until they bottom out. Remove these two nuts.

Note: If the studding supplied is not long enou gh, use M10 stainless
steel, grade A4 studding of a suitable l ength. Refer to the following il­lustration for details .

5. Using suitable lifting equipment, raise the pedestal over the
mounting surface. Carefully lower into position, taking care that
the studs pass through the holes without damagi ng the threads.
Ensure that the cable inlet is pointing aft.

WARNING:

Support the pedestal unit until it has been secured to the
mounting platform. It is important that all four sets of nuts and
washers are used to secure the pedestal to the mounting platform.

6. Referring to the following illustration, use the four nuts and asso­ciated washers supplied to secure the pede stal. Tighten the nuts to
20 Nm (14.7 lb ft); ensure the scanner is tightly fitted.
Grease the nuts.
If required, cut-off any excess stud.

Chapter 2: Installing the Scanner 29

Lifting eye

Pedestal

Bitumen washer,
sticky side down
on platform

Mounting
platform

M10 stud
length = 52 mm

32 mm Max.

plus platform depth

M10 plain washer

M10 spring washer

M10 nut

D4573-3

Connecting the open array scanner inter-unit cable

CAUTION:

Before wiring the scanner unit check that it is securely mounted
to the platform, then make sure that the inter-unit cable is not
connected and power is not applied to the display unit. The
scanner switch must be in the OFF position.

1. Loosen the fou r self-retaining bolts securing the pedestal lid to the
base. Pull -up and tu rn the bolts a nti-cloc kwise to lock them in th e
upright position. Remove the lifting eyes.

Note: It is important to remove lifting eyes to avoid corrosion. Retain
the lifting eyes: they will be required if the scanner is removed from its
platform.

2. Open the pedestal lid. Ensure the securing stay has automatically
locked into position.

30 Pathfinder Radar Scanners

3. Referring to the following illustration, remove the cable gland
nut, washer and grommet from the watertight gland, where the
inter-unit cable will en ter the base.

Heatshrink

5mm (0.2in) 5mm (0.2in)

20mm (0.8in)

20mm (0.8in)

40mm (1.6in)

D4575-2

4. Slide the cable through the gland nut, washer and grommet, then
into the base. Clamp into position, ensuring th e section of main
cable covered in yellow heat shrink is clamped.

5. The cable is supplied prepared and ready to fit to the signal and
power connectors. If you need to cut the cable to length, strip of f
the protective outer sleeve then use the supplied kit to prepare the
cable as detailed in the following illustration

Chapter 2: Installing the Scanner 31

1. Preparation of Wires

See Note A

See Note B

500mm ± 10mm

25mm

10mm

500mm ± 10mm

5-6mm strip length

Black power wires
Red power wires

Data wires
(6 off)

Coaxial
signal

Coaxial
screen

5-6mm
strip length

2. Heat Shrinking of Wires

5mm maximum

See Note CSee Note D

35mm

25mm

3. Heat Shrinking of Cable/Wires

40mm

20mm

Notes

A. Aluminium screen/polyester tape screen to remain.
B. Heat shrink sleeving fitted to keep the aluminium/polyester tape screen from unwinding
from the coaxial signal insulation.
C. The wires must be formed into two bundles with heat-shrink tubing (one containing the
four power wires and the other containing the eight signal wires).
D. The heatshrink shown in step 3 must be fitted to prevent the 'overall screen' from
shorting to base.

CAUTION:

If any of the wires are incorr ectly fitted, the scanner will not
function correctly.

Remove the 8-way plug from the signal connector and fit to the
cable as shown in the following diagram. The terminal clamps are
operated using a screwdriver as shown. Alternatively , you can
leave the connector in position whilst connecting the cable, you
should then remove the connector and visually check each wire
connection.

D4579-2

32 Pathfinder Radar Scanners

Re-connect to the plug. When correctly fitted the white wire (co­axial) will be at the outer edge of the unit.

6. Connect the red and black power cores. Connect the red cable
leads to the terminal sockets marked “+”, and the black cable
leads to the terminal socket marked “-”, with one lead in each
socket. The terminal clamps are operated using a screwdriver as
shown in the inset diagram.

Signal connector

Grey
Purple
Blue
Green
Yellow
Orange
Coaxial Screen
(Black)
Coaxial Inner
(White)

Power connector

D4576-2

CAUTION:

Do not earth the cable screen to the scanner . The radar system is
earthed via the display unit.

7. Using the tie-wrap fitting on the pedestal lid, secure the cable.

8. Check the gasket in the pedestal lid is correctly seated.
Close the pedestal lid, ensuring that the cable does not become
trapped. Tighten the four s elf-retaining bolts.

CAUTION:

Do not grease the gasket in the pedestal li d.

Chapter 2: Installing the Scanner 33

Fitting the open array to the pedestal

CAUTION:

The pedestal unit has a cap fitted over the open array mounting
shaft to protect the protuding co-ax ial pin. This cap must be left
in place until the open array is fitted to the pedestal.

1. Remove the cap from the open array shaft. Retain the cap, it will
be required if the open array is removed from the pedestal.

2. Grease the four securing studs.

CAUTION:

If the pin is damaged during the following operation you sh ould
contact your service dealer .

3. Lift the open array into position. Carefully lower the array - to pre­vent damage to the mounting pin, ensure the array remains paral­lel to the pedestal so that the studs slot into the holes on the
pedestal mounting bracket.

Note: The open array mounting bracket is designed so that the array
can only be fitted to the pedestal in the correct orientation.

4. Use the fou r nuts and associated washers supplied to secure the
array to the pedestal as shown in the diagram below .

Array

Pedestal

M8 plain washer

M8 spring washer

M8 nut

D4580-2

34 Pathfinder Radar Scanners

2.3 System connections

DC power connection

Power is supplied to the scanner via the display unit; the power cable
is supplied with the display unit , refer to your display unit Owner’s
Handbook for details on connecting power. However , you should be
aware of the following.
The DC system should be either:

• Negative grounded, with the negative battery terminal connected
to the ship’s ground.

• Floating, with neither battery terminal connected to the ship’s
ground.

CAUTION:

This radar is not intended for use on “positive” ground vessels.
The power cable Earth screen connections must be connected to
the ship’s gr ound.

Grounding the radar system

It is important that an effective RF ground is connected to the radar
system. Y ou must ground the radar b y connecting the drain wire
(screen) of the Power/NMEA Input cable to the nearest ground point
of the ship’s RF ground system. Ref er to your display unit Owner’s
Handbook for details.

Note: Use on ly this ground connection.

Power Connections

The power connection to the radar should be made at either the output
of the battery isolator switch, or at a DC power distribution panel.
Raytheon recommends that power is fed directly to the radar via its
own dedicated cable system and MUST be protected by a thermal
circuit breaker or fuse, fitted close to the power connection. Refer to
the table below for isolator switch, circuit breaker or fuse value
ratings. Check all terminal connections are clean.

Chapter 2: Installing the Scanner 35

CAUTION:

If you do not have a thermal cir cuit breaker or fuse in your power
circuit, e.g. fitted to the DC distribution panel, you MUST fit an
in-line breaker or fuse to the positive (red) lead of the power
cable.

Table 2-1: Isolator Switch/Thermal Breaker/Fuse Values

Vessels
Supply

12 V*

24/32 V**

* 1 0 kW sc anner s cann ot be d irect ly c on nec ted to 12 V

*

*Radome systems cannot use 32V.

Device Open Array Systems

4 kW 10 kW

Isolator Switch min. rating 30 A n/a 20A

Thermal Breaker rating 15 A n/a 10A

Fuse value 20 A n/a 15 A

Isolator Switch min. rating 15 A 15 A 15 A

Thermal Breaker rating 8 A 10 A 5 A

Fuse value 10 A 15 A 8 A

Radome
Systems

The open array scanner has a power switch fitted to the pedestal. This
switch can normally be left ON. However, if the scanner is being
serviced or if any personnel are in the vicinity of the open array , the
switch should be set to OFF .

Scanner connection

The inter-unit cable is connected to the scanner as described in
Sections 2.1 and 2.2. If you are using an int er-unit extension cable,
connect this to the display unit, and connect the supplied cable to the
extension cable. The scanner connector pins are shown in the
following diagram, together with the connections and core colors.

CAUTION:

The display connector on the inter-unit cable is a moulded plug
that cannot be replaced. DO NOT remove this moulded plug.

36 Pathfinder Radar Scanners

Front view of
Display Cable Connector

2

86

11

13 12

Display Scanner

Video

Video RTN

*Battery --ve

Tx Trigger +

Battery --ve

Data I/O +

Tx Trigger --

Battery +ve

Data I/O --

*Battery +ve

Azimuth +

Azimuth --

1

35

4

7

10

1

2

3

4

5

6

7

8

9

10

11

12

13

9

White

Black

Black

Orange

Black

Green

Yellow

Shield

Red

Blue

Red

Violet

Grey

* Not present on 'light', 11 core cables.

Front view of Radome
Scanner Cable Connector

8
7

6
5

4
3

2
1

Battery +ve/--ve = 12 or 24v.

Not fitted on
Open Array Scanners
(refer to Section 2.2)

White

8

Black

Orange

Yellow

Green

Blue

Violet

Grey

Red

Red

Black

Black

Video

7

Video Rtn

6

Tx Trigger +

5

Tx Trigger --

4

Data I/O +

3

Data I/O --

2

Azimuth +

1

Azimuth --

Battery +ve

*Battery +ve

*Battery --ve

Battery --ve

D4290-3

Chapter 2: Installing the Scanner 37

Display unit connection

CAUTION:

Do not use an open array scanner with an SL70 or Autohelm 7"
LCD display unit. Failur e to observe this may r esult in
permanent damage to the display unit.
10 kW open array scanners cannot be directly connected to 12 V
systems.

The rear of the Pathfinder display includes the following connection
sockets:

• Scanner connection

• Power/NMEA Input DC power connection, two NMEA 0183

inputs and one RF ground (screen) connection.

Note: If you have an integrated system that includes a rad ar display
with MARPA as a primary function, the scanner must be connected to
this display to enable the function. MARPA is then available on any
repeater display.

Connect the scanner cable to the scanner connector and power to the
power/NMEA input connector .
Power and all other connector details are supplied in the display unit

Owner’s Handbook.

Connector Panels

LCD Display

CRT Display

Power and NMEA Input

POWER/

NMEA

NMEA

HSB

ANTENNA/

TRANSDUCER

Scanner

SeaTalk

DISPLAY

FUSE

D4597-2

38 Pathfinder Radar Scanners

Chapter 3: Post Installation Checks and Maintenance 39

Chapter 3: Post Installation Checks and

Maintenance

Once you have installed your radar scanner and display u nit, and
made all the connections, you need to check your installation. You
can then set up the radar system, align the scanner and check the
display timing. In addition, for a 72" open array scanner you need to
set the antenna size to ensure the scanner rests in the correct position
when rotation stops.

Set up, alignment and timing checks are performed from the radar
system display unit. The procedures are outlined below; full det ails
are provided in the display unit Owner’s Handbook. Y ou should read
the Pathfinder radar display unit Owner’s Handbook and familiarise
yourself with the operation of the radar .

EMC Conformance

Always check the installation before going to sea to make sure that it
is not affected by radio transmissions, engine starting etc.

3.1 System Checks and Alignment

System check

Before performing the functional test, check the following:

• All securing bolts are fully tightened and mechanical locking
arrangements as specified are in place

• All connections have been made

• All connecting wires are secured and protected as necessary

Note: If you are the boat owner and have performed the installat ion
yourself, ask your authorised installation dealer to check the installa­tion before going to sea.

Set up, alignment and timing checks

Switch on and initial set up

On the open array scanner , ensure the power switch on the pedestal is
set to ON.
T o switch on the display unit, press and hold the
unit beeps. The magnetron warm-up sequence should start, after

POWER

key until the

40 Pathfinder Radar Scanners

which the unit should enter Standby mode.
If necessary , adjust the lighting and contrast.
If required, change the default language settings.

Checking transmission

WARNING:

The radar scanner transmits electromagnetic energy. Ensure
that the scanner has been installed according to the
recommendations given in Chapter 1, and that all personnel are
clear of the scanner , before switching to transmit mode.

Run through the radar operations described in the display uni t
Owner’s Handbook and check that all the expected data is displayed.

Bearing alignment

When the system is correctly installed, you must check th e bearing
alignment to ensure that targets appear at their correct bearing relative
to the ship’s bow , and adjust the alignment if necessary .

Display timing adjustment

The display timing can be affected by the length of the cable used to
connect the scanner to the display unit. This in turn affects the short
range accuracy shown on the display .
It is advisable to check the display timing before using the system for
navigation.

72" open array position alignment

T o ensure the 72" open array scanner rests in correct position when
rotation stops, you need to adjust the radar set up as follo ws:

1. With the display switched on in Radar mode, press
press the RADAR SET UP soft key.

2. Use the curso r to select the ANTENNA SIZE option, then press the
6ft softkey.

ENTER

press
If the Radar Set Up menu option ANTENNA SIZE is not available,
then you have an older version of di splay software. The 72" open
array scanner will operate correctly with this display. However,
for details on adjusting the open array stopping-p osition, please
contact your authorised Raytheon dealer or distributor .

twice to return to the default display .

MENU

then

Chapter 3: Post Installation Checks and Maintenance 41

3.2 Maintenance

Warnings

The display unit and scanner unit co ntain high voltage.
Adjustments require specialised service procedures and tools
only available to qualified service technicians - there are no user
serviceable parts or adjustments and the operator should not
attempt to service the equipment. The operator should not remove

the rear cover of the display or any internal covers in the scanner.

Always turn the radar system off before carrying out any routine
maintenance on the scanner or nearby equipment. Switch off the
display unit befor e removing the power cord.

Routine Checks

The radar scanners are sealed units. Maintenance procedures are
therefore limited to the following periodical checks:

• Examine the cables for signs of damage, such as chafing, cuts or
nicks.

• Check that the cable connectors are firmly attached.

ake sure the scanner and pedestal are still attached

• M

securely to the mounting.
Once a year, remove, grease and re-attach the mounting

•

bolts securing the scanner and pedestal.

Servicing and Safety

• Raytheon equipment should be serviced only by authori sed Ray­theon service technicians. They will ensure that service proce­dures and replacement parts used will not affect performance.
There are no user serviceable parts in any Raytheon product.

• Some products generate high voltages, so never handle the
cables/connectors when power is being supplied to the equip­ment.

• When powered, all electrical equipment produces electromag­netic fields. These can cause adjacent pieces of electrical equip­ment to interact with one another, with a conseq uent adverse
effect on operation. In order to minimise these effects and enable
you to get the best possible performance from your R aytheon

42 Pathfinder Radar Scanners

equipment, guidelines are given in the installatio n instructions, to
enable you to ensure minimum interaction between different
items of equipment, i.e. ensure optimum Electromagnetic Com­patibility (EMC).

• Always report any EMC-related problem to your nearest Ray­theon dealer. We use such information to improve our quality
standards.

• In some installations, it may not be possible to prevent the equip­ment from being affected by external influences. In general this
will not damage the equipment but it can lead to spurious resetting
action, or momentarily may result in faulty operation.

3.3 Problem Solving

All Raytheon products are subjected to comprehensive test and
quality assurance programmes prior to packing an d shipping.
However, if this unit shou ld develop a fault, please refer to the
following table to identify the most likely cause and the corrective
action required to restore normal operation.

If you still have a problem after referring to the table below , contact
your local dealer, national dis tributor or Raytheon Product Support
Department for further advice.

Always quote the product serial numbers. The display unit seri al
number is printed on the back of the unit, and the scanner serial
number is on the back of the scanner near the gland.

Table 3-1: Common Problems and Their Solutions

Problem Correction

“Scanner not responding”
message.

The bearing displayed on the
radar display is not the same as
the actual

The 7 2” antenna stops in the
wrong position.

bearing

Check that the cable connecting the scanner
to the radar display unit is firmly attached and
undamaged.
Check that the polarity of the cables is correct.

Perform the bearing alignment procedure
described in the display unit

Section 8.7.

Refer to

72" open array position alignment

Owner’s Handbook

.

Chapter 3: Post Installation Checks and Maintenance 43

How to Contact Raytheon (US)

For Marine Product and Services Information

Vi sit the Raytheon W orld Wi de W eb site for the latest information on
the newest Raytheon Marine electronic equipment and systems at:

www.raymarine.com

For Accessories and Parts

Many Raytheon accessory items and parts can be obtained directly
from your authorized Raytheon dealer . However, if you are in need of
an item not available from the retailer, please contact Raytheon
T echnical Services at:

1-800-539-5539 extension 2333 or
[phone] extension 2333.

T echnical Services are available Monday through Friday 8:15 AM to
5:00 PM Eastern Standard Time.

Please have the Raytheon item or part number ready when calling if
placing an order . If you are not sure which item is appropriate for your
unit, you should first contact the T echnical Support Department at:

1-800-539-5539 ext. 2444 or
[phone] extension 2444

to verify your requirements.

For Technical Support:

For technical support, call:

1-800-539-5539 extension 2444 or
[phone] extension 2444.

Our T echnical Support Specialists are available to answer questions
about installing, operating and trouble-shooting all Raytheon
products. Questions may be addressed directly to our T echnical
Support Department via e-mail at:

[e-mail].

44 Pathfinder Radar Scanners

For Product Repair and Service

In the unlikely event your Raytheon unit should develop a p roblem,
please contact your authorized Raytheon dealer for assistance. The
dealer is best equipped to handle your service requirements and can
offer time saving help in getting the equipment back into normal
operation.

In the event that repairs can not be obtained conveniently , product
service may also be obta ined by re turning the unit to :

Raytheon Product Repair Center
22 Cotton Road, Suite 280
Nashua, NH03063-4219

The Product Repair Center is open Monday through Friday 8:15 a.m.
to 5:00 p.m. Eastern Standard T ime or Eastern Daylight Savings
Time. All products returned to the R epair Center are registered upon
receipt. A confirmation letter will be sent to you acknowledging the
repair status and the product’s reference number. Should you wish to
inquire about the repair status of your unit, contact the Product Repair
Center at:

1-800-539-5539 extension 21 18.

Please have the product reference number, or unit serial number ,
ready when you call. W e will do everything possible to make the
repair and return your unit as quickly as possible

How to Contact Raytheon (Europe)

In Europe, Raytheon support, service and accessories may be
obtained from your authorised dealer, or contact:

Raytheon Marine Company
Anchorage Park, Portsmouth
PO3 5TD, England
T el : [phone]
Fax: [phone]

Or visit the Raytheon Marine W orld W ide W eb site:

www .r aymarine.com

Chapter 3: Post Installation Checks and Maintenance 45

Technical Support

The T echnical Services Department handles enquiries concerning
installation, operation, fault diagnosis and repair . For technical
helpdesk contact:

T el: [phone]
Fax: [phone]

Our technical support staff may also be reached via e-mail at:

[e-mail].

Accessories and Parts

Raytheon accessory items and parts are available through your
authorised Raytheon dealer . Please refer to the lists of component part
numbers and optional accessories in the Installation chapter of this
manual, and have the Raytheon part number ready when speaking
with your dealer.

If you are uncertain about what item to choose for your Raytheon
unit, please contact our Customer Services Department prior to
placing your order .

Worldwide Support

Please contact the authorised distributor in the country . A list of
worldwide distributors is supplied with your system.

46 Pathfinder Radar Scanners

Appendix A: Specification 47

Appendix A:Specification

2D 18" Radome Scanner Unit

General

Approvals
CE - conforms to
FCC - conforms to

Dimensions

Weight 6.5 kg (14.3 lbs)

Input Voltage 8.7 - 32 V DC (from display unit)

Power Consumption 28 W (9 W Standby)

Environmental Waterproof to CFR46

Maximum Range Scale 24 nm

89/336/EEC (EMC), EN60945:1997
Part 80 (47CFR) and Part 2 (47CFR)

468 x 227 mm (18.4 x 8.9 in)

ΦΦΦΦ

Temperature range: -10° to +55°C
Humidity limit: up to 95% at 35°C
Maximum wind speed for satisfactory operation: 100 Kts

Transmitter

Transmitter Frequency 9410 +/– 30 MHz

Pea k Powe r Ou tput 2.0 kW (nominal)

Transmitter Solid-state modulator driving Magnetron

Pulse Length/PRF 0.08

Standby Mode Magnetron heater and control left on, all other services off

Duplexer Circulator

Antenna

Antenna Type Patch array

Beam Width (nominal) 5.2° horizontal, 25° vertical

Polarization Horizontal

Antenna Side lobes Less than -22 dB

Rotation Rate 24 rpm (nominal)

s/2250Hz (0.75 nm or less)

µµµµ

0.25

s/1500 Hz (above 0.75 nm & less than 6 nm)

µµµµ

0.70

s/750 Hz (6 nm or greater)

µµµµ

48 Pathfinder Radar Scanners

Receiver

IF Frequency 60 MHz (nominal)

Receiver Characteristic Semi-log

Receiver Noise Figure Less than 5 dB

Receiver Bandwidth 12/3/1 MHz

(including Low Noise Converter/Limiter & IF Receiver)

4D 24" Radome Scanner Unit

General

Approvals
CE - conforms to
FCC - conforms to

Dimensions

Weight 7.5 kg (16.5 lbs)

Input Voltage 8.7 - 32 V DC (from display unit)

Power Consumption 34 W (10 W Standby)

Environmental Waterproof to CFR46

Maximum Range Scale 48 nm

Tra nsm it ter

Transmitter Frequency 9410 +/– 30 MHz

Pea k Power Outpu t 4.0 kW (nominal)

Transmitter Solid-state modulator driving Magnetron

Pulse Length/PRF 0.08

Standby Mode Magnetron heater and control left on, all other services off

Duplexer Circulator

89/336/EEC (EMC), EN60945:1997
Part 80 (47CFR) and Part 2 (47CFR)

599 x 227 mm (23.6 x 8.9 in)

ΦΦΦΦ

Temperature range: -10° to +55°C
Humidity limit: up to 95% at 35°C
Maximum wind speed for satisfactory operation: 100 Kts

s/2250Hz (0.75 nm or less)

µµµµ

0.25

s/1500 Hz (above 0.75 nm and less than 6 nm)

µµµµ

0.70

s/750 Hz (6 nm or greater)

µµµµ

Appendix A: Specification 49

Antenna

Antenna Type Patch array

Beam Width (nominal) 3.9° horizontal, 25° vertical

Polarization Horizontal

Antenna Side lobes Less than -22dB

Rotation Rate 24 rpm (nominal)

Receiver

IF Frequency 60 MHz (nominal)

Receiver Characteristic Semi-log

Receiver Noise Figure Less than 5 dB

Receiver Bandwidth 12/3/1 MHz

(including Low Noise Converter/Limiter & IF Receiver)

50 Pathfinder Radar Scanners

5S and 9S 48" Open Array Scanner Unit

General

Approvals
CE - conforms to
FCC - conforms to

Dimensions Pedestal: 427 x 296 x 406 mm (16.8 x 10.5 x 16 in)

Weight Pedestal: 24 kg (53.0 lb)

Environmental Waterproof to CFR46

Maximum Range Scale 72 nm

5S Transmitter - 4 kW

Input Voltage 10.7 - 44 V DC (from display unit)

Power Consumption 9.2 W Standby

Transmitter Frequency 9410 +/– 30 MHz

Pea k Power Outpu t 4 kW (nominal)

Transmitter Solid state modulator driving magnetron

Pulse Length/PRF

Pulse Length/PRF

Pulse Length/PRFPulse Length/PRF

Range
(nm)

0.125 0.065 3000 12 0.09 3000 12

0.25 0.065 300 0 12 0.09 3000 12

0.50 0.09 3000 12 0.15 3000 12

0.75 0.15 3000 12 0.25 3000 12

1.50 0.35 2000 3 0.45 1600 3

3.00 0.45 1600 3 0.60 1200 0.7

6.0 - 72 1.00 7 40 0.5 - - -

Standby Mode Magnetron h eater and control left on, all other servic es off

Duplexer Circulator

Pulse Length

(

µµµµ

89/336/EEC (EMC), EN60945:1997
Part 80 (47CFR) and Part 2 (47CFR)

Array: 1306 m m (51.4 in) length

Array: 6 kg (13.2 lb)

Temperature range: -10° to +55°C
Humidity limit: up to 95% at 35°C
Maximum wind speed for satisfactory operation: 100 Kts

46 W Typical operation in light winds
61 W Max. operation in 50 Kt winds
96 W Max. operation in 100 Kt winds

Normal

PRF
(Hz)

Bandwidth

(MHz)

S)

Pulse Length

(

S)

µµµµ

Expanded

PRF
(Hz)

Bandwidth

(MHz)

Appendix A: Specification 51

9S Transmitter - 10 kW

Input Voltage 16 - 44 V DC (from display unit)

Power Consumption 11 W Standby

Transmitter Frequency 9410 +/– 30 MHz

Pea k Powe r Ou tput 10 kW (nominal)

Transmitter Solid state modulator driving magnetron

Pulse Length/PRF

Pulse Length/PRF

Pulse Length/PRFPulse Length/PRF

Range
(nm)

0.125 0.065 3000 12 0.09 3000 12

0.25 0.065 3000 12 0.09 3000 12

0.50 0.09 3000 12 0.15 3000 12

0.75 0.15 3000 12 0.25 3000 12

1.50 0.35 2000 3 0.45 1600 3

3.00 0.45 1600 3 0.60 1200 0.7

6.0 - 72 1.20 7 40 0.5 - - -

Standby Mode Magnetron heate r and control left on, all other services off

Duplexer Circulator with integral limiter

Pulse Length

(

µµµµ

80 W Typical operation in light winds
95 W Max. operation in 50 Kt winds
140 W Max. operation in 100 Kt windS

Normal

PRF
(Hz)

Bandwidth

(MHz)

S)

Pulse Length

(

S)

µµµµ

Expanded

PRF
(Hz)

Bandwidth

(MHz)

48" Antenna

Antenna Type Slotted waveguide array

Beam Width (nominal) 1.85°

Polarization Horizontal

Antenna Side lobes L ess than -22 dB

Rotation Rate 24 rpm (nominal)

52 Pathfinder Radar Scanners

Receiver

IF Frequency 60 MHz (nominal)

Receiver Characteristic Semi-log

Receiver Noise Figure Less than 5 dB

Receiver Bandwidth 12/3/0.7/0.5 MHz

(including Low Noise Converter/Limiter & IF Receiver)

Note: If the scanner is bought for use with an existing display, contact
your dealer/service agent for the latest display software to ensure you
can use all the open array scanner features.

Appendix A: Specification 53

7S and 11S 72" Open Array Scanner Unit

General

Approvals
CE - conforms to
FCC - conforms to

Dimensions Pedestal: 427 x 296 x 406 mm (16.8 x 10.5 x 16 in)

Weight Pedestal: 24 kg (53.0 lb)

Environmental Waterproof to CFR46

Maximum Range Scale 72 nm

7S Transmitter

Input Voltage 10.7 - 44 V DC (from display unit)

Power Consumption 9.2 W Standby

Transmitter Frequency 9410 +/– 30 MHz

Pea k Powe r Ou tput 4 kW (nominal)

Transmitter Solid state modulator driving magnetron

Pulse Length/PRF

Pulse Length/PRF

Pulse Length/PRFPulse Length/PRF

Range
(nm)

0.125 0.065 3000 12 0.09 3000 12

0.25 0.065 300 0 12 0.09 3000 12

0.50 0.09 3000 12 0.15 3000 12

0.75 0.15 3000 12 0.25 3000 12

1.50 0.35 2000 3 0.45 1600 3

3.00 0.45 1600 3 0.60 1200 0.7

6.0 - 72 1.00 74 0 0.5 - - -

Standby Mode Magne tron heater and control left on, all other se rvices off

Duplexer Circulator

Pulse Length

(

µµµµ

89/336/EEC (EMC), EN60945:1997
Part 80 (47CFR) and Part 2 (47CFR)

Array: 1918 mm (75.5 in) length

Array: 9.4 kg (20.7 lb)

Temperature range: -10° to +55°C
Humidity limit: up to 95% at 35°C
Maximum wind speed for satisfactory operation: 100 Kts

- 4 kW

46 W Typical operation in light winds
83W Max. operation in 50 Kt winds
135W Max. operation in 100 Kt winds
(min. input voltage 11.4 V for winds >75kt)

Normal Expanded

PRF
(Hz)

Bandwidth

(MHz)

S)

Pulse Length

(

S)

µµµµ

PRF(
Hz)

Bandwidth

(MHz)

54 Pathfinder Radar Scanners

11S Transmitter - 10 kW

Input Voltage 20 - 44 V DC (from display unit)

Power Consumption 11 W Standby

Transmitter Frequency 9410 +/– 30 MHz

Pea k Power Outpu t 10 kW (nom inal)

Transmitter Solid state modulator driving magnetron

Pulse Length/PRF

Pulse Length/PRF

Pulse Length/PRFPulse Length/PRF

Range
(nm)

0.125 0.065 3000 12 0.09 3000 12

0.25 0.065 3000 12 0.09 3000 12

0.50 0.09 3000 12 0.15 3000 12

0.75 0.15 3000 12 0.25 3000 12

1.50 0.35 2000 3 0.45 1600 3

3.00 0.45 1600 3 0.60 1200 0.7

6.0 - 72 1.20 740 0.5 - - -

Standby Mode Magnetron heater and control left on , all othe r ser vices off

Duplexer Circulator with integral limiter

Pulse Length

(

µµµµ

80 W Typical operation in light winds
117 W Max. operation in 50 Kt winds
179 W Max. operation in 100 Kt windS

Normal

PRF
(Hz)

Bandwidth

(MHz)

S)

Pulse Length

(

S)

µµµµ

Expanded

PRF(
Hz)

Bandwidth

(MHz)

72" Antenna

Antenna Type Slotted waveguide array

Beam Width (nominal) 1.15°

Polarization Horizontal

Antenna Side lobes Less than -25 dB

Rotation Rate 24 rpm (nominal)

Appendix A: Specification 55

Receiver

IF Frequency 60 MHz (nominal)

Receiver Characteristic Semi-log

Receiver Noise Figure Less than 5 dB

Receiver Bandwidth 12/3/0.7/0.5 MHz

(including Low Noise Converter/Limiter & IF Receiver)

Note: If the scanner is bought for use wi th an existing display, contact
your dealer/service agent for the latest display software to ensure you
can use all the open array scanner features.

56 Pathfinder Radar Scanners

Index i

Index

A

Alignment

Bearing 40

B

Bearing Alignment 40

C

Cable Runs 11
Cables

Extension 4

Open Array 16, 18, 19
Radome 13, 15, 17

Inter-unit 4, 11, 12

Open Array 16, 30

Radome 13, 22
Part Numbers 4
Power 11

Open Array 17

Radome 14
Rejoining 11

Connections

Display Unit 37
Open Array Scanner 29
Power 34, 37
Radome Scanner

22
Scanner 35
System 34

D

Display Timing Adjustment 40
Display Unit

Connections 37

E

Electromagnetic Energy i, 40
EMC iv

Conformance iv
Installation Guidelines 2

F

Ferrite 4, 24

G

Grounding the System 34

H

Help from Raytheon

Europe 44
US 43
Worldwide 45

High Voltage i

L

Location 5

M

Maintenance and Problem Solving 39
Mounting

Open Array Scanner 28
Radome Scanner 21
Scanner

on Power Boats 9
on Sailboats 9

N

Navigation Aid i

O

Open Array Scanner

48" iii, 1, 50
72" iii, 1, 53
72" - Position Alignment 40
Connections 29
Mounting 28
Pedestal 33

P

Parts List 4
Power

Cables 11

Open Array 17
Radome 14

Connections 34, 37

Problem Solving 42

ii Pathfinder Radar Scanners

R

Radar System

Grounding 34
Typical System Diagram 1

Radome Scanner

18" iii, 1, 47
24" iii, 1, 48

Mounting 21
Rejoining Cables 11
Routine Checks 41

S

Safety

- and Servicing 41

Electromagnetic Energy i

High Voltage i

Navigation Aid i
Scanner i

Connections 35

Location 5

Mounting

on Power Boats 9

on Sailboats 9
Scanner. See also Open Array Scanner,
Radome Scanner i
Servicing and Safet y 41
Set Up 39
Specification

18" Radome Scanner 47
24" Radome Scanner 48
48" Open Array Scanner 50
72" Open Array Scanner 53

System Check 39

T

Timing Adjustment 40
Transmission Check 40

W

Warranty iv