Simrad argus Installation And Service Manual

ENGLISH

ARGUS RADAR
SYSTEM

Installation & Service Manual

navico-commercial.com

Argus Radar - Installation and service manual

RECORD OF CHANGES

Part number/Rev.

Date

Purpose of change

Requested by

988-10187-001 September 2011 First issue

988-10187-002 December 2013 Software release 3.2 M. Carmagnini

988-10187-003 October 2014 Software release 3.2.5 M. Carmagnini

988-10187-004 October 2016 Software release 3.3.2 M. Carmagnini

MANUAL TABLE OF CONTENTS

Warnings
Chapter 1 INSTALLATION AND SETTINGS
Chapter 2 SERIAL INTERFACE SPECIFICATIONS
Chapter 3 RADAR CONFIGURATION
Chapter 4 DEBUG AND SIMULATION FACILITIES
Chapter 5 TROUBLESHOOTING
Chapter 6 Annex A
Chapter 7 Annex B
Chapter 8 Annex c

Argus Radar - Installation and service manual

TABLE OF CONTENTS

CHAPTER 1 Installation and settingS ..................................................................... 1.1

1.1 GUIDELINES FOR THE INSTALLATION OF SHIPBORNE RADAR EQUIPMENT .................... 1.1

1.2 INTERFERENCE ...................................................................................................................... 1.1

1.2.1 Location relative to masts, funnels and other constructions ........................... 1.1

1.2.2 Blind sectors and range ........................................................................................... 1.2

1.2.3 Interaction with sea and false echoes ...................................................................... 1.3

1.2.4 Cables and grounding ............................................................................................. 1.3

1.2.5 Radar controls and display ...................................................................................... 1.4

1.3 SYSTEM SPECIFICATIONS ..................................................................................................... 1.5

1.3.1 Dimension and Weight ............................................................................................. 1.5

1.3.2 Power ....................................................................................................................... 1.5

1.3.3 Environmental Data ................................................................................................ 1.5

1.4 INPUT/OUTPUT REQUIREMENTS .......................................................................................... 1.6

1.5 ANALOGUE GYRO COMPASS (SYNCHRO OR STEPPER) .................................................... 1.7

1.6 SERIAL GYRO ....................................................................................................................... 1.10

1.7 SPEED LOG ........................................................................................................................... 1.10

1.8 EPFS ...................................................................................................................................... 1.11

1.9 AIS ......................................................................................................................................... 1.11

1.10 BAM ...................................................................................................................................... 1.11

1.11 VDR CONNECTION .............................................................................................................. 1.12

1.12 RADAR CONSOLE FAILURE OUTPUT ................................................................................. 1.13

1.13 CONFIGURATION LINKS TABLE ......................................................................................... 1.13

1.13.1 Antares PCB Links: ............................................................................................... 1.13

1.13.2 Alpha PCB Links: .................................................................................................. 1.13

1.13.3 Alpha Expansion PCB Links: ................................................................................ 1.15

CHAPTER 2 SERIAL INTERFACE SPECIFICATIONS ............................................. 2.1

2.1 SERIAL LINE 1, HEADING ...................................................................................................... 2.1

2.2 SERIAL LINE 2, AIS ................................................................................................................ 2.3

2.3 SERIAL LINE 3, EPFS - GPS ................................................................................................. 2.10

2.4 SERIAL LINE 4 ...................................................................................................................... 2.28

2.5 SERIAL LINE 5 ...................................................................................................................... 2.30

2.6 SERIAL LINE 6 ...................................................................................................................... 2.31

2.7 SERIAL LINE 7 ...................................................................................................................... 2.32

2.8 SERIAL LINE 8 ...................................................................................................................... 2.33

CHAPTER 3 RADAR CONFIGURATION .................................................................. 3.1

3.1 HOW TO ACCESS THE RADAR CONFIGURATION ................................................................. 3.1

3.1.1 Radar Configuration................................................................................................ 3.1

3.2 GYROCOMPASS CONFIGURATION ........................................................................................ 3.3

3.3 SPEED LOG CONFIGURATION .............................................................................................. 3.5

3.4 OWN SHIP DIM. AND WEIGHT .............................................................................................. 3.6

3.5 CONNING AND EPFS POS. CONFIGURATION MENU ........................................................... 3.7

3.6 UNCONVENTIONAL SENSOR CFG. ........................................................................................ 3.8

3.7 ANTENNA SETTINGS .............................................................................................................. 3.9

3.7.1 Adjustment of Azimuth Type (PPR Selection) ........................................................ 3.10

3.7.2 Adjustment of the heading line .............................................................................. 3.11

3.8 TXRX SETTINGS .................................................................................................................. 3.12

3.8.1 Transceiver Communication Type ......................................................................... 3.13

3.8.2 Transceiver Communication Type ......................................................................... 3.13

3.8.3 Performance Monitor Adjustment ......................................................................... 3.14

3.8.4 Tuning Adjustment ................................................................................................. 3.15

3.8.5 Magnetron timer reset ........................................................................................... 3.15

3.8.6 Digital potentiometers reset................................................................................... 3.15

3.9 VIDEO TRIGGER ADJUSTMENTS ......................................................................................... 3.16

3.9.1 Video Adjust Mode................................................................................................. 3.17

3.9.2 Adopted communication configurations ................................................................ 3.17

Argus Radar - Installation and service manual

3.9.3 Trigger Delay ........................................................................................................ 3.18

3.9.4 QV (Quantized Video) Threshold .......................................................................... 3.19

3.10 SECTOR BLANKING ............................................................................................................. 3.19

3.11 SYSTEM CONFIGURATION .................................................................................................. 3.21

3.11.1 Display settings (Fig 3.11.1 -A) ............................................................................ 3.21

3.11.2 IP Address (Fig 3.11.1 -B) .................................................................................... 3.24

3.11.3 MAC Address (Fig 3.11.1 -C) ............................................................................... 3.25

3.11.4 TXRX Associated by Default (Fig 3.11.1 – D) ....................................................... 3.25

3.11.5 General info (Fig 3.11.1 – E) ................................................................................ 3.25

3.11.6 Additional Functions (Fig 3.11.1 – F) ................................................................... 3.26

3.12 RESTART BUTTON ................................................................................................................ 3.27

3.13 USB MENU (FIG 3.1.2-N) ..................................................................................................... 3.28

3.13.1 Save Screenshots.................................................................................................... 3.30

3.13.2 Saving and reloading maps ................................................................................... 3.30

3.13.3 File configuration .................................................................................................. 3.31

3.13.4 System log files ...................................................................................................... 3.31

3.14 STORED PARAMETERS ........................................................................................................ 3.32

3.15 SOFTWARE UPGRADE .......................................................................................................... 3.33

CHAPTER 4 DEBUG AND SIMULATION FACILITIES ............................................. 4.1

4.1 GENERAL INFORMATION ...................................................................................................... 4.1

CHAPTER 5 TROUBLESHOOTING .......................................................................... 5.1

5.1 INTRODUCTION ...................................................................................................................... 5.1

5.1.1 Safety Precautions ................................................................................................... 5.1

5.1.2 Personnel ................................................................................................................. 5.1

5.2 REQUIRED TOOLS AND INSTRUMENTS ............................................................................... 5.1

5.3 CORRECTIVE MAINTENANCE PROCEDURES ....................................................................... 5.2

5.4 CORRECTIVE MAINTENANCE PROCEDURES ON DISPLAY CORE UNIT .......................... 5.3

5.4.1 DISPLAY CORE UNIT Cover Removing and Installation .............................. 5.3

5.4.2 Alpha Expansion Board Replacement ..................................................................... 5.3

5.4.3 ANTARES Assy Replacement ................................................................................... 5.4

5.4.4 Alpha Board Replacement ....................................................................................... 5.4

5.4.5 Line Filter Replacement .......................................................................................... 5.5

5.4.6 P.S. Assy Replacement ............................................................................................. 5.5

5.4.7 Fans Assy Replacement ........................................................................................... 5.6

5.5 CORRECTIVE MAINTENANCE PROCEDURES ON THE DISPLAY UNIT ............................. 5.12

5.6 CORRECTIVE MAINTENANCE PROCEDURES ON THE KEYBOARD UNIT ........................ 5.12

5.7 INTRODUCTION .................................................................................................................... 5.13

5.7.1 Parts List................................................................................................................ 5.13

5.7.2 Parts Location Illustration .................................................................................... 5.13

5.7.3 Parts List Tables .................................................................................................... 5.14

5.8 SYSTEM LIFETIME ................................................................................................................ 5.16

CHAPTER 6 Annex A ................................................................................................ 6.1

CHAPTER 7 Annex B ................................................................................................ 7.1

CHAPTER 8 Annex C ................................................................................................ 8.1

List of Tables

TABLE 1.4.1 - SUMMARY OF THE INPUT/OUTPUT REQUIREMENTS .......................................................... 1.6

TABLE 1.10.1 – VDR CONNECTION ......................................................................................................... 1.12

TABLE 1.10.2 – MONITOR TIMINGS ......................................................................................................... 1.12

TABLE 5.1 – LIST OF CORRECTIVE MAINTENANCE PROCEDURES .......................................................... 5.2

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SHIPPING AND UNPACKING

The unit parts are placed in cardboard boxes covered with a plastic sheet. Each
box includes a protecting polyurethane box shaped for the contained parts.

The following general rules apply:

- Inspection for damage during transport.

- When the unit(s) arrive at destination, inspection should be made
immediately to register any damage that may have occurred during
transport.

- The customer is normally responsible for insurance during transportation.
If any damage is found, both the insurance company and the shipping
agent must be informed immediately.

- Units must be transferred on board still packed into their boxes.

- When the units are removed from their boxes, they must be left in their
protective plastic cover until installation.

It is advisable to keep the packing material for possible future use. The plastic
sheet the unit is wrapped in, can be used to protect it during installation and
maintenance procedures.

In addition to the various main parts, the package should also include:

- Technical Manual with installation procedures.

- Installation kit (terminals, clamps, connectors etc.)

- Standard spare part kit (fuses, screws etc.)

The installation kit and spare part kit are necessary for the installation and
operation of the equipment, and must be kept together to perform the
installation work. Contents of the kits should be checked immediately after
unpacking, using the supplied material list in the box. The manufacturer will not
accept claims for missing items unless presented immediately after unpacking.

STORAGE

After the material contained in the boxes have been inspected in the presence
of the customer and have been verified that no damage has occurred, the unit
shall be stored in its original packing until the time of installation. The storage
premises must be dry and well protected.

If the units must be kept in storage for more than one month, it is advisable to
insert hygroscope substances, such as silicon gel salts, in the crates.

The Argus Radar System contains delicate electronic components, please
handle accordingly.

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WARNINGS

HIGH VOLTAGE

Radar equipment includes high voltage that can cause injury or loss of life.
Danger exists only when the units are opened for service, exposing internal
circuits. The ARGUS Radar has been carefully designed to protect personnel
from possible injury from high voltages.
Nevertheless, it is recommended that the Main Power Line shall always be OFF
as an added protection when inspecting or servicing the equipment.
Although every effort has been made to eliminate danger to personnel, no
responsibility is accepted for any injury or loss of life suffered in connection with
this equipment.

X-RAY RADIATION

The Argus Radar does not generate X-RAY radiation.

RADIO-FREQUENCY RADIATION

Harmful effects (particularly to the eyes) may be caused by exposure of any
part of the human body to radio-frequency mean power densities in excess of
100 mW/cm2. This power density is exceeded at a distance of 1 ft. or less from
the 12 ft. X-Band aerial (when stationary).
The system is designed to disable radiation when the antenna is not rotating.
The pedestals have also been prepared for installation of an external safety
switch, which can be mounted on, or near the platform. This switch disconnects
the power from the Pedestal preventing accidental operation during servicing.
Whenever it is necessary to disconnect the waveguide system from a radar
transmitter for maintenance purpose, the transmitter output should, when
practical, be terminated in a matched load. If this is not possible, care should be
taken to avoid standing in front of an open-ended waveguide from which power
is being radiated.
NEVER look down a waveguide from which power is being radiated.

SAFETY SWITCH

The Radar Unit is provided with a safety switch, which disables the antenna
rotating during maintenance and service.

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SAFETY PRECAUTIONS

Purpose

Safety precautions described in this paragraph are applicable to the Argus X­Band Radar System. Depending upon the type of advice, the following attention
signs are used in the technical manual:

WARNING

IF THIS OPERATING PROCEDURE, MAINTENANCE
PROCEDURE, PRACTICE, CONDITION OR STATEMENT IS
NOT STRICTLY FOLLOWED, IT COULD RESULT IN SEVERE
INJURY OR DEATH OF PERSONNEL.

WARNING

IF THIS OPERATING PROCEDURE, MAINTENANCE
PROCEDURE, PRACTICE, CONDITION OR STATEMENT IS
NOT STRICTLY FOLLOWED, IT COULD RESULT IN
DAMAGE, OR DESTRUCTION OF UNIT, OR LOSS OF
TRANSMISSION EFFICIENCY.

NOTE

Advice of an essential operating procedure, maintenance
procedure, condition or statement, which must be followed.

Whenever a precaution, relating specifically to a part of the technical manual is
needed, precaution information is given in the relevant part of the manual.
Warning and Caution Signs precede applicable text.

Safety Operations

During normal operation (unit closed), the unit can be quickly disconnected
from the main power line, switching OFF the main circuit breaker located on the
electric switchboard.

During maintenance (unit opened) it is possible to turn on the unit, by setting
the SERVICE MODE to SW2 switch, mounted on the SRT control PCB (see
next page). This switch is connected in parallel with the relay, controlled by the
POWER ON command, and during normal operation must be set to NORMAL.
During maintenance, in order to prevent RTM occasional turning-on it is better
to disconnect and insulate, momentarily, PWON terminal from the relevant
terminal board.

NOTE

Main power line is always present on terminal board and on
fuses

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SW2 switch (red rotary component)

SRT control PCB

Safety Summary

The following general safety precautions are not related to any specific
procedure and therefore do not appear elsewhere in this technical manual.
These are recommended precautions that personnel must understand and
apply during most phases of operation and maintenance.

KEEP AWAY FROM ANY LIVE CIRCUITS!
Operating personnel must at all times observe all safety regulations.
Do not replace components or make adjustments inside the unit with the high
voltage supply turned ON. Under certain conditions, dangerous potentials may
exist when the power breaker is in OFF position, due to charges retained by
capacitors. To avoid danger and casualties, always remove power and
discharge to ground a high voltage circuit before touching it.

DO NOT SERVICE OR ADJUST YOURSELF!
Under no circumstances should any person initiate servicing or adjusting the
unit except in the presence of authorized personnel.

RESUSCITATION
Personnel working with or near high voltage should be familiar with modern
methods of resuscitation. Such information may be obtained from the Bureau of
Medicine and Surgery or equivalent.

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Warning Information

The following warning signs appear in this technical manual. To point out their
importance, they are repeated here for emphasis:

WARNING

USE EXTREME CARE WHEN WORKING ON THE UNIT
ONCE THE COVER HAS BEEN OPENED. THE MAGNETRON
ASSEMBLY OPERATES AT HIGH VOLTAGES THAT MAY
CAUSE FATAL INJURIES

WARNING

BE AWARE OF HIGH VOLTAGE CAPACITORS. IT IS
NECESSARY TO SHORT-CIRCUIT THEIR LEADS BEFORE
PERFORMING ANY MAINTENANCE ACTION ON THEM.

WARNING

ON THE ELECTRIC SWITCHBOARD, SET THE POWER
BREAKER DEDICATED TO THE PRESENT EQUIPMENT TO
“OFF”, AND ATTACH A SIGN, READING: “WORK IN
PROGRESS! DO NOT SWITCH ON!”

WARNING

USE EXTREME CARE WHEN WORKING ON THE
EQUIPMENT ONCE THE UNIT HAS BEEN OPENED. THE
MAGNETRON ASSEMBLY OPERATES AT HIGH VOLTAGES
THAT MAY CAUSE FATAL INJURIES.

WARNING

SET MAIN LINE BREAKER TO OFF BEFORE REPLACING
ANY FUSE. FUSES ARE AT VOLTAGE LEVELS, WHICH MAY
CAUSE FATAL INJURIES.

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988-10187-004 1.1

CHAPTER 1

INSTALLATION AND SETTINGS

1.1 Guidelines for the installation of

shipborne radar equipment

Information provided by radar is of vital importance for navigators and the safe
navigation of ships.

Special care should be taken to ensure correct installation of the radar, in order
to ensure the performance of the radar system.

Correct location of the radar antenna is an important factor the performance of
the radar system. Interference, either by reflecting constructions or other
transmitters, may heavily reduce the radar performance by creating blind
sectors, clutter on the radar display or generation of false echoes.

1.2 Interference

Proper care should be taken with regard to the location of radar antennas
relative to other antennas which may cause interference to either equipment.
The location of the antenna should comply with the following:

The radar antenna should be installed at a safe distance from interfering high­power energy sources and other transmitting and receiving radio antennas.

The lower edge of the radar antenna should be a minimum of 50 cm above any
safety rail.

Radar antennas in close proximity should have a minimum vertical elevation
separation angle of 20° and a minimum vertical separation of 1 m where
possible.

1.2.1 Location relative to masts, funnels and

other constructions

Proper care should be taken with regard to the location of radar antennas
relative to masts, funnels and other constructions.

The location of the antenna should comply with the following:
The antenna should generally be mounted clear of any structure that may
cause signal reflections.
Ensure that any support or other obstacles are clear of the rotation of the
antenna (see specific antenna outline drawing for rotation radius).
Install antenna and turning unit so that the installation complies with the
compass safe distance for the equipment.

Argus Radar - INSTALLATION AND SETTINGS

988-10187-004 1.2

1.2.2 Blind sectors and range

To ensure full benefit from the radar, it is vitally important for the OOB that
horizontal and vertical blind sectors for the radar antennae are minimized. The
objective is to see the horizon freely through 360°, or as close to as possible.

For all radar systems and where practical, a line of sight from the radar antenna
to the bow of the ship should hit the surface of the sea at no more than 500 m
or twice the ship length, depending which value is smaller. This goes for all load
and trim conditions.

The radar antenna should be located in an elevated position to permit
maximum target visibility.

Ideal Radiation Plane

Blind sectors should be kept at a minimum, and should not occur in an area of
the horizon from right ahead to 22.5° abaft the beam to either side.

Note: Any two blind sectors separated by 3° or less should be treated as one
blind sector.

Individual blind sectors of more than 5°, or a total of blind sectors of more than
20°, should not occur in the remaining area, excluding the area in
the above subparagraph (e).

For radar installations with two radar systems, where possible, the antennas
should be placed in such a way as to minimize the blind sectors.

Argus Radar - INSTALLATION AND SETTINGS

988-10187-004 1.3

All installations should facilitate protection of equipment from damage, including
cabling.

Safe service access should be provided using service platforms where
necessary, having a minimum size of 1 m2 at a suitable height and with a
safety rail of suitable height.

Consideration should be given to the compass safety distance, as supplied by
the manufacturer, when positioning equipment units.

The design of the mounting platform for the antenna and antenna pedestal
should take into account the vibration requirements of resolution A.694(17) and
furthermore defined by IEC 60945. In addition to vibration, the design of the
mounting platform should consider shock and whiplash due to conditions at
sea.

1.2.3 Interaction with sea and false echoes

Considerations of interaction with the sea imply that the radar antenna should
be only as high as necessary to clear major objects, and as high to be
consistent with other requirements regarding acceptable horizon and target
detection range. The location of the antenna should minimize sea clutter
returns and the number of multi-path nulls.

1.2.4 Cables and grounding

Cables and grounding should comply with the following:

Cable screens, especially coaxial cable screens, should be installed according
to manufacturer's documentation.

The cables should be kept as short as possible to minimize interference and
attenuation of the signal.

All cables between antenna and radar system units should be routed as directly
as possible, consistent with consideration for other equipment, in order to
reduce electromagnetic interference effects. Cables should not be installed
close to high-power lines, such as radar or radio-transmitter lines.

Crossing of cables should be done at right angles (90°) to minimize magnetic
field coupling.

All outdoor installed connectors should be waterproof by design to protect
against water penetration into the cables.

Cables and microwave transmission lines should be handled carefully and be
without sharp bends.

Cables and microwave transmission lines should be installed with sufficient
physical separation, as defined in the manufacturer's documentation.

Argus Radar - INSTALLATION AND SETTINGS

988-10187-004 1.4

1.2.5 Radar controls and display

If the control panel is a separate unit, the functionality of the radar controls
should be available for the mariner at all workstations where a radar display is
available.

The orientation of the display unit should be such that the user is looking
ahead. The lookout view should not be obscured and the ambient light should
cause minimum degradation on the display screen in accordance with
MSC/Circ.982.

WARNING

ONLY ELECTRONIC POSITION FIXING SYSTEMS (EPFS) APPROVED
IN ACCORDANCE WITH THE REQUIREMENTS OF THE IMO IN
RESOLUTION MSC.112(73) SHALL BE CONNECTED TO THE ARGUS
RADAR CONSOLE.

WARNING

ACCORDING THE IMO STANDARD, A GROUND SPEED SENSOR IS
REQUIRED TO BE CONNECTED TO THE ARGUS CONSOLE.
IT IS ALLOWED TO USE AN ELECTRONIC POSITION FIXING SYSTEM
(EPFS) APPROVED IN ACCORDANCE WITH THE REQUIREMENTS OF
THE IMO IN RESOLUTION MSC.112(73) OR AN ALTERNATIVE TWO
DIMENSIONAL GROUND STABILISING SDME IN COMPLIANCE WITH
IMO RESOLUTION MSC.96(72)

WARNING

LONG TRANSMISSION LINES CAN AFFECT THE RADAR
PERFORMANCE. THE SYSTEM HAS BEEN TESTED WITH 20 M
LENGTH FROM TRANSCEIVER TO ANTENNA PEDESTAL, CONSIDER
THAT TRANSMITTED/RECEIVED POWER ARE HALVED FOR EVERY
10 MS ADDED (EX: +20 M = -6DB SIGNAL/NOISE).
CLEARLY THIS AFFECTS DETECTION FOR FAR TARGETS AND FOR
SMALL/LOW REFLECTIVITY ONES LIKE SAILBOATS.
HIGHEST MAST POSITION IS GOOD FOR LONG RANGE DETECTION
BUT IT AFFECTS HEAVILY THE DETECTION IN SEA CLUTTER. FOR
OPTIMAL DETECTION IN SEA CLUTTER SUGGESTED ANTENNA
HEIGHT FROM SEA LEVEL IS APPROX. 20 M.
USUALLY THE CONTRADICTORY SPECIFICATIONS ARE SOLVED
WITH INSTALLATION OF MORE THAN ONE ANTENNA, FOR EXAMPLE
ONE AT 30 M FOR LONG RANGE DETECTION AND ONE AT 20 M FOR
OPTIMAL DETECTION OF LOW INTENSITY ECHOES IN SEA
CLUTTER.

Argus Radar - INSTALLATION AND SETTINGS

988-10187-004 1.5

WARNING

THE RADAR UNIT IS PROVIDED WITH A SAFETY SWITCH, WHICH
DISABLES ANTENNA ROTATION DURING MAINTENANCE
OPERATIONS AND AVOIDS HIGH VOLTAGE DAMAGE. ALWAYS TURN
THE SAFETY SWITCH “OFF”, WHENEVER ADVISED IN THIS MANUAL
(FOR INSTANCE, BEFORE PERFORMING ANY MAINTENANCE OR
INSTALLATION PROCEDURE). IGNORING SAFETY SWITCH
OPERATION MAY PRODUCE HAZARD OF ELECTROCUTION AS WELL
AS OTHER SEVERE INJURES

1.3 System Specifications

1.3.1 Dimension and Weight

See outline drawings

1.3.2 Power

Power supply

Single phase 220 or 115 Vac
+/- 15% 50/60 Hz

Power consumption (estimated)

Monitor M5027

68 W (+ 5 W power supply)

Monitor M5024

35 W (+ 5 W power supply)

Monitor M5019

30 W (+ 5 W power supply)

Monitor M5016

25 W (+ 5 W power supply)

Monitor 26” Hatteland 16:10

120 W

Monitor 24” Hatteland

110 W

Core + Keyboard

40 W

1.3.3 Environmental Data

Operating temperature

-15°C / +55°C

Storage temperature

-25°C / +70°C

Relative humidity

Up to 95% at +40°

Water resistance, Salt spray, Vibrations etc. as per IEC 60945

Argus Radar - INSTALLATION AND SETTINGS

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1.4 Input/Output Requirements

The parameters with tolerances are included with each of the inputs listed.

Table 1.4.1 - Summary of the Input/Output Requirements

Feature Characteristics

Power (see also

section 1.3.2)

Voltage:

Consumption:

Single phase 110 to 230 Vac ±15%, 50/60
Hz ±6% 50 VA

Environmental
Conditions

Operating:

Storage:

Temperature -15°C to +55 °C

Temperature -20°C to +60 °C

Gyrocompass Synchro:

. Voltage value: 50 ÷ 115 Vac ±10%

(reference)
. 50/60 Hz or 300/400 Hz
. Gear ratio: 1:360, 1:180, 1: 90, 1:36

Stepper:

. Voltage value: 15 to +100 V positive (Vef)

-15 to -100 V negative (Vef)

. Gear ratio: 1:360, 1:180, 1: 90, 1:36

Stepper rectified:

. Voltage value: 100 Vac (Vef)
. Frequency: 50/60 Hz or 300/400 Hz ±6%
. Gear ratio: 1:360, 1:180, 1: 90, 1:36

Serial:

. RS422 standard FNMEA or RS232
. Load: ≥ 7 KΩ, terminated 120 Ω

Speed Log Mechanical input:

. PRR: 100 pulses/NM, 200 pulses/NM, 400

pulses/NM
. Input type: diode isolated, pull-up
. pulse width: 1 ms (min)

. Load: ≥ 2.7 KΩ

. Threshold: +10 V (typ)

Speed For

Electronic input
(switch):

. PRR: 120 pulses/m, 20000 pulses/NM
. Load: ≥ 1 KΩ
. Pulse width: 0.1 µs (min)
. Voltage: TTL to 15V (typ)

Speed Serial

Electronic input
(serial):

. Input type: RS422 standard NMEA or

RS232
. Load: ≥ 3 KΩ, terminated 120 Ω

System Failure
(FAIL)
TB1 (pin 5-6)

Relay output NC

Closed when the system is in failure or

switched off

- Max 125 V 30 W load

AIS

. RS422 standard FNMEA or RS232

Load: ≥ 7 KΩ, terminated 120 Ω

EPFS

RS232

Load: ≥ 3 KΩ, terminated 120 Ω

BAM

Input type: RS422 standard NMEA or

RS232

Load: ≥ 3 KΩ, terminated 120 Ω

Danger Target
(DGT)
TB1 (pin 3-4)

Relay output NC/NO
configurable

Active when a Radar Target or AIS is

dangerous

- - Max 125 V 30 W load

Argus Radar - INSTALLATION AND SETTINGS

988-10187-004 1.7

Feature Characteristics

Dead Man Alarm
Reset (DNA)
TB1 (pin 1-2)

Relay output NC/NO
configurable

Active when an action is made on the

control panel

- Max 125 V 30 W load

Video and Combined data without
ALPHA Expansion or CH3 and CH4
with this card

. Voltage value: 0,8 to 1,5 Vpp
adjustable

. Load: ≥ 1 KΩ, terminated 75 Ω

Video and data with Alpha Expansion CH1 and CH2: (Optional)
Video:

Polarity:

. Positive or negative

Amplitude: . 1 to 4 Vpp adjustable

Load:

. Load: ≥ 1 KΩ, terminated 75 Ω

Bandwidth:

. 24 MHz (-3 dB)

Trigger:

Polarity:

. Positive or negative

Amplitude:

. TTL to 40 V (peak)

Load:

. Load: ≥ 1 KΩ, terminated 75 Ω

PRF:

. 300 to 4000 Hz

Pulse width:

. 50 ns (min.)

Serial Interface: Signal Standard:

. RS232 or RS422
. Load: ≥ 3 KΩ, terminated 120 Ω

Antenna Rotation Rotation rate: . 15 to 60 RPM

Data

Device type:

- Bearing

. Voltage value: 4 to 50 V
. 128 or 132 pulses per antenna revolution
. Load: ≥ 2 KΩ

- Encoder

. Voltage value: 4 to 50 V

. 1024 or 4096 pulses per antenna

revolution

. Load: ≥ 2 KΩ

Heading line Voltage value: . 4 to 50 V
Load: . Load: ≥ 2 KΩ

Pulse width:

. ≥ 0,1 mS and < 45°

Polarity:

. Positive or negative or bipolar

1.5 Analogue Gyro compass (Synchro or
Stepper)

The gyro signals are connected to TB14 on the Alpha PCB. There are several
connection possibilities depending on type and reference voltage of the gyro.

Refer to the drawing below for the relevant configuration for Synchro and
Stepper.

Argus Radar - INSTALLATION AND SETTINGS

988-10187-004 1.8

Fig 1 For Argus (ALPHA PCB) connect to TB14.

Note: Connection with stepper gyro full wave rectified signal (SPERRY MK-37,
MK-20)

1. Close the jumpers P10, P13, P15 on the Alpha PCB;

2. make the interconnection to TB4 on the Alpha PCB as follow:

TB14

WIRE

NUMBERS

FROM

GYRO

3. Follow the configuration instructions described in Chapter 3

4. Check the phases status through the LED on the Alpha PCB.

The three phases are given by the gyro with a 3 bit Gray code. The purpose of
this code is to detect the increment of the value and its sign; its most important
characteristic is that only one of the three bits at the time can change and in
this application (normally is not a characteristic of the Gray code), the 3 bits
cannot have all the same level. To give a quick look to the Gray code see the
four green LED on the Alpha:

1. The first one next to red LED is D33 and it indicates the first phase (S1).

S0

S1

S2

S3

R1H

R1L

R2

#5

#1

#2

#3

#4

Argus Radar - INSTALLATION AND SETTINGS

988-10187-004 1.9

2. The second one is D34 and it is the second phase indicator (S2).

3. The third one is D35 and it indicates the third phase (S3).

4. The last one is D36 and it is to indicate the Reference.

Now that the LEDs are individuated, move the gyro or in any way simulate a
steering and the three LEDs (S1, S2 and S3) will start to change their state and
it will be easy to observe that they will never be “all on” or “all off”; their state will
change one at a time.

WARNING

THE GYRO INTERFACE SHOULD BE CONFIGURED CORRECTLY
ACCORDING TO TYPE OF SENSOR CONNECTED, OTHERWISE
LEVELS AND LED SIGNALS WILL BE INCORRECTLY LIGHTED, ALSO
WHEN THE SIGNALS ARE AVAILABLE.

S1

S3

S2

Gyro Phases combinations in Gray code

Argus Radar - INSTALLATION AND SETTINGS

988-10187-004 1.10

1.6 Serial Gyro

A Standard or Fast NMEA Gyro can be connected to the Alpha PCB TB9

Connect it according to guidelines defined in Chapter 2 Serial Interfaces.

1.7 Speed LOG

Speed log with analogue signal is connected to TB14 on the Alpha PCB. There
are several connections depending on the type of log installed. Most single axis
analogue speed logs are shorting-type (relay contact closure), in this case the
signal shall be connected between PIT and GND on TB14.

Speed log with NMEA output can be connected to Alpha PCB input TB2. See
the serial interface chapter for accepted sentences.

WARNING

THE HEADING SENSOR, A GYRO EQUIPMENT OR EQUIVALENT, SHOULD
BE ABLE TO SUSTAIN A RATE OF TURN UP TO 20°/S ACCORDING TO
IMO RESOLUTION MSC.192(79) AND MSC.116(73) FOR THD DEVICES.
IF THE INTERFACE IS ANALOGUE THE MINIMUM TURN RATE SHOULD
BE 12°/S.
FOR A DIGITAL INTERFACE THE HEADING REFRESH SHOULD BE MORE
THAN 20 HZ, UP TO 50 HZ.
IF THE GYRO UPDATE RATE IS UNDER THE PREVIOUS STATED VALUES
THE TRACKING PERFORMANCE CAN BE SERIOUSLY DEGRADED WITH
INCREASING ERRORS ON TARGET VECTOR DURING THE OWN SHIP
CHANGE OF COURSE.

Argus Radar - INSTALLATION AND SETTINGS

988-10187-004 1.11

1.8 EPFS

The EPFS (Electronic Position Fixing System) signal is connected to TB3 on
the Alpha PCB.
When connected to an EPFS, the TB3 output sends relevant data for INS and
ECDIS.

NOTE

Supported EPFS equipment must follow the IMO
recommendation MSC.114(73)

1.9 AIS

The AIS signal is connected to TB8 on the Alpha PCB.
It's possible to receive RS422 or RS232 standard signal only at 38400 bps.
The sentences accepted are: AIALR, AIVDM and AIVDO.

NOTE

It is also possible to connect the output from the RADAR to the
AIS device, to acknowledge the alarms coming from AIS from
the RADAR interface. Normally, the AIS equipment has only
one input available, so that only one RADAR can be connected
to it and only one will be able to acknowledge the alarms. This
output is on the same serial port TB8 with only one sentence
generated: AIACK

The same output is the source for tracking data sentences TTD and TLB.

NOTE

Supported AIS equipment must follow the IMO
recommendation A.917(22)

1.10 BAM

Using same formatting as per EPFS:

The BAM (Bridge Alarm
Monitoring system) signal can be connected to TB10 or TB4 on the Alpha PCB.

NOTE

Supported BAM equipment must follow the IMO
recommendation MSC.252(83)

Argus Radar - INSTALLATION AND SETTINGS

988-10187-004 1.12

1.11 VDR Connection

To connect a VDR System to the Argus Radar, use the VGA Output on the
Core Unit (Alpha Assy). The maximum distance from the Unit to the VDR
depends on the level of the Video signal output of the cable in use. See the
following table for distances regarding function of cable type.

Cable

Video

1280x1024

Video

1600x1200

Video

1920x1200

(26” wide

screen)

Distance (m)

Distance (m)

Distance (m)

RG75

RG59

M202
M203

RG11

CT100

CT125

10

25
25
35
40
50

60

8

20
20
30
30
40

45

10

25
25
35
40
50

60

Table 1.10.1 – VDR Connection

NOTE

- Supported VDR equipment must follow the IMO
recommendation A.861(20)

- The VDR outlet is completely different from the DVI outlet to
which the monitor is connected

Monitor synchronism timings according to the resolution

Resolution 1280x1024 1366x768 1600x1200 1920x1080 1920x1200

Dot Clock

110 MHz 72 MHz 110 MHz 144 MHz 130 MHz

Horizontal
Period

15.56 uS 21.75 uS 16.36 uS 14.7 uS 16 uS

Horizontal Sync

1.67 uS 469 nS 0.908 uS 236 nS 246 nS

Horizontal Front

Porch

392 nS 916 nS 416 nS 458 nS 336 nS

Horizontal Back
Porch

1.86 uS 1.388 uS 496 nS 694 nS 652 nS

Vertical Period

16.41 mS 17.53 mS 19.96 mS 16.48 mS 19.76 mS

Vertical Sync

46.4 uS 87 uS 164 uS 58 uS 96 uS

Vertical Front

Porch

15.6 uS 87 uS 48.8 uS 58.8 uS 48 uS

Vertical Back

Porch

410 uS 652 uS 116 uS 418 uS

Table 1.10.2 – Monitor timings

Argus Radar - INSTALLATION AND SETTINGS

988-10187-004 1.13

1.12 Radar Console Failure Output

For installation where a continuous check of the radar console operability is
mandatory, a failure output is available.
The FAIL output is located on TB1 on the Alpha PCB and it is a NC contact that
can supply up to 200 mA of current (see Input/Output specification at this
Chapter’s introduction).
A special electronic circuit on the Antares PCB acts continuously as a watchdog
to detect any operational failure that can cause a processor malfunction.
Should a failure occur or the system is powered-off, the contact switches to
closed condition.

1.13 Configuration Links Table

1.13.1 Antares PCB Links:

Function

Ref.

Link Name

Description

Factory

Preset

BDM

J8

BDM

Enable B

Normally Open

Open

J11

BDM

Enable A

Normally Open

Open

Restore J7

SW

If closed at startup, the default
programs will not start and the
upgrade ÷ restore programs will be
run.

Open

1.13.2 Alpha PCB Links:

Function Ref. Link Name Description

Factory

Preset

Video

P7

VD1
Termination

Link closed when the Argus is

standalone or the last

equipment on the Video chain

Close

P12

VD2
Termination

Link closed when the Argus is

standalone or the last

equipment on the Video chain

Close

P2

422
Termination

Link closed when the Argus is

standalone on 422 serial
communication or the last
equipment on 422 serial

communication chain

Open

Argus Radar - INSTALLATION AND SETTINGS

988-10187-004 1.14

Function Ref. Link Name Description

Factory

Preset

Serial

P3

FNMEA 1

Termination

Link closed when the Argus is

standalone on 422 serial
communication or the last
equipment on 422 serial

communication chain

Open

P4

FNMEA 2

Termination

Link closed when the Argus is

standalone on 422 serial
communication or the last
equipment on 422 serial

communication chain

Open

P5

FNMEA 3

Termination

Link closed when the Argus is

standalone on 422 serial
communication or the last
equipment on 422 serial

communication chain

Open

P8

232+422 / 1

Termination

Link closed when the Argus is

standalone on 422 serial
communication or the last
equipment on 422 serial

communication chain

Open

P9

232+422 / 2

Termination

Link closed when the Argus is

standalone on 422 serial
communication or the last
equipment on 422 serial

communication chain

Open

P11

232 / RX7
Inversion

Set this link to configure serial
polarity

1-2

P14

232 / RX8
Inversion

Set this to configure serial
polarity

1-2

Gyro

P10 S3 Gyro set

Normally open, close in case of
Sperry MK20 or MK37

Open

P13 S2 Gyro set

Normally open, close in case of
Sperry MK20 or MK37

Open

P15 S1 Gyro set

Normally open, close in case of
Sperry MK20 or MK37

Open

Alarm

P1

Dead Man
Alarm

Set 1-2 normally open contact
or 2-3 normally close contact

1-2

P6

Danger Target
Alarm

Set 1-2 normally open contact
or 2-3 normally close contact

1-2

Argus Radar - INSTALLATION AND SETTINGS

988-10187-004 1.15

1.13.3 Alpha Expansion PCB Links:

Function Ref. Link Name Description

Factory

Preset

Video

P1

Video 1

Termination

Link closed when the Argus is
standalone or the last equipment on
the Video chain

Close

P2

Video 2

Termination

Link closed when the Argus is
standalone or the last equipment on
the Video chain

Close

P6

Video 3

Termination

Link closed when the Argus is
standalone or the last equipment on
the Video chain

Close

P8

Video 4

Termination

Link closed when the Argus is
standalone or the last equipment on
the Video chain

Close

P3

VD1 Level

Close in Serial Data Communication,
open in Combined Video and with
SRT Adapter Box installations

Close

P4

VD2 Level

Close in Serial Data Communication,
open in Combined Video and with
SRT Adapter Box installations

Close

Trigger

P5

Trigger 1

Termination

Link closed when the Argus is
standalone or the last equipment on
the Trigger chain

Close

P7

Trigger 2

Termination

Link closed when the Argus is
standalone or the last equipment on
the Trigger chain

Close

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988-10187-004 1.16

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Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.1

CHAPTER 2

SERIAL INTERFACE SPECIFICATIONS

2.1 Serial Line 1, Heading

It is possible to receive RS422 or RS232 standard signal at 4800 or 38400 bps indifferently
on TB9 (FNMEA 1). Note that the circuit is able to receive at 4800 and 38400 bps also with
RS232 connection, but this is not a standard connection according to the IEC 61162-2
standard.

SCHEME 4
IN +
IN ­SHLD
OUT+
OUT­GND

RS 422 Interface Listener Connection

+ IN

"A" Data Input

- IN

"B" Data Input

SHLD

“C” insulated
Ground

Input Load

≥ 7 KΩ

RS 232 Interface Listener Connection

- IN

RX Data Input

SHLD and + IN

Insulated ground

Input Load

≥ 7 KΩ

This serial line is compliance with IEC 61162-1 and IEC 61162-2. Accepted sentences: THS
and HDT

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.2

THS – True heading and status

NOTE

This sentence replaces the deprecated sentence HDT.

Actual vessel heading in degrees true produced by any device or system producing true
heading. This sentence includes a “mode indicator” field providing critical safety related
information about the heading data, and replaces the deprecated HDT sentence.

$--THS,x.x,a*hh<CR><LF>

Mode indicator (see Note)

Heading, degrees true

NOTE

Mode indicator. This field should not be null.

A = Autonomous

E = Estimated (dead reckoning)

M = Manual input

S = Simulator mode

V = Data not valid (including standby)

HDT – Heading true

Actual vessel heading in degrees true produced by any device or system producing true
heading.

NOTE

This is a deprecated sentence which has been replaced by THS.

$--HDT, x.x, T*hh<CR><LF>

Heading, degrees true

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988-10187-004 2.3

2.2 Serial Line 2, AIS

It is possible to receive RS422 or RS232 standard signal at 4800 and 38400 bps on TB8
(FNMEA 2). Note that the circuit is able to receive at 4800 and 38400 bps also with RS232
connection, but this is not a standard connection according to the IEC 61162-2 standard.

SCHEME 2
IN +
IN ­SHLD
OUT+
OUT­GND

RS 422 Interface Listener Connection

+ IN

. "A" Data Input

- IN
. "B" Data Input

SHLD

. “C” insulated Ground

Input Load

. ≥ 7 KΩ

RS 232 Interface Listener Connection

.

- IN
. RX Data Input

SHLD and + IN

. Insulated ground

Input Load

- ≥ 7 KΩ

RS 422 Output Talker Connection

+ OUT

. "A" Data Output

- OUT
. "B" Data Output

GND

. “C” Ground

Output Drive

- 150 mA

-

This serial line complies to IEC 61162-1 and IEC 61162-2.
Accepted sentences: VDM, VDO and ALR.
Send sentences TLB, TTD and ACK.

VDM – AIS VHF data-link message

Defined in ITU-R M.1371 and as received on the VHF Data Link (VDL), using the “six-bit”
field type. The structure provides for the transfer of long binary messages by using multiple
sentences.

Data messages should be transmitted in as few sentences as possible. When a data
message can be accommodated in a single sentence, then it shall not be split.

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.4

VDM – AIS VHF data-link message

Defined in ITU-R M.1371 and as received on the VHF Data Link (VDL), using the “six-bit”
field type. The structure provides for the transfer of long binary messages by using multiple
sentences.

Data messages should be transmitted in as few sentences as possible. When a data
message can be accommodated in a single sentence, then it shall not be split.

!--VDM,x,x,x,a,s—s,x*hh<CR><LF>

Number of fill-bits, 0 to 5 (see Note 5)

Encapsulated ITU-R M.1371 radio message (see Note 4)

AIS channel (see Note 3)

Sequential message identifier, 0 to 9 (see Note 2)

Sentence number, 1 to 9 (see Note 1)

Total number of sentences needed to transfer the message,

1 to 9 (see Note 1)

NOTE 1

The length of an ITU-R M.1371 message may require the transmission of
multiple sentences. The first field specifies the total number of sentences
used for a message, minimum value 1. The second field identifies the
order of this sentence in the message, minimum value 1. These cannot be
null fields.

NOTE 2

The sequential message identifier provides a message identification number
from 0 to 9 that is sequentially assigned and is incremented for each new
multi-sentence message. The count resets to 0 after 9 is used. For a
message requiring multiple sentences, each sentence of the message
contains the same sequential message identification number. It is used to
identify the sentences containing portions of the same message. This
allows for the possibility that other sentences might be interleaved with the
message sentences that, taken collectively, contain a single message. This
should be a null field for messages that fit into one sentence.

NOTE 3

The AIS channel is indicated as either “A” or “B”. This channel indication is
relative to the operating conditions of the AIS unit when the packet is
received. This should be a null field when the channel identification is not
provided. The VHF channel numbers for channels “A” and “B” are obtained
by using a “query” (see 7.3.4) of the AIS unit for an ACA sentence.

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.5

NOTE 4

This field supports up to 60 valid characters. Under certain conditions, this
field may support up to a maximum of 62 valid characters: 1) When the
message can be transmitted using a single sentence, the sequential
message identifier field is set to null allowing an additional valid character in
this encapsulated field. 2) When the AIS channel field is set to null an
additional valid character is allowed in this encapsulated field. 3) The
maximum number of 62 valid characters is only possible when the conditions
allow both the sequential message identifier and AIS channel fields is set to
null.

NOTE 5

This cannot be a null field. See “x4” in 7.3.3.

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.6

VDO – AIS VHF data-link own-vessel report

This sentence is used to transfer the entire contents of an AIS unit’s broadcast message
packet, as defined in ITU-R M.1371 and as sent out by the AIS unit over the VHF data link
(VDL) using the “six-bit” field type. The sentence uses the same structure as the VDM
sentence formatter.

!--VDM,x,x,x,a,s—s,x*hh<CR><LF>

Number of fill-bits, 0 to 5 (see Note 5)

Encapsulated ITU-R M.1371 radio message (see Note 4)

AIS channel (see Note 3)

Sequential message identifier, 0 to 9 (see Note 2)

Sentence number, 1 to 9 (see Note 1)

Total number of sentences needed to transfer the message,

1 to 9 (see Note 1)

NOTES 1

To 5 See VDM sentence notes.

ALR – Set alarm state

Local alarm condition and status. This sentence is used to report an alarm condition on a
device and its current state of acknowledgement.

$--ALR,hhmmss.ss,xxx,A, A,c--c*hh<CR><LF>

Alarm’s description text

Alarm’s acknowledge state, A = acknowledged

V = unacknowledged

Alarm condition (A = threshold exceeded, V = not exceeded)

Unique alarm number (identifier) at alarm source

Time of alarm condition change, UTC

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.7

TLB – Target label

Common target labels for tracked targets. This sentence is used to specify labels for tracked
targets to a device that provides tracked target data (e.g. via the TTM – Tracked target
message). This will allow all devices displaying tracked target data to use a common set of
labels (e.g. targets reported by two radars and displayed on an ECDIS).

$--TLB,x.x,c--c,x.x,c--c,...x.x,c--c*hh<CR><LF>

Additional label pairs (see Note 1)

Label assigned to target ‘n’ (see Note 2)

Target number ‘n’ reported by the device.

NOTE 1

This sentence allows several target number/label pairs to be sent in a single
message, the maximum sentence length limits the number of labels allowed
in a message.

NOTE 2

Null fields indicate that no common label is specified, not that a null label
should be used. The intent is to use a null field as a place holder. A device
that provides tracked target data should use its ”local” label (usually the
target number) unless it has received a TLB sentence specifying a common
label.

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.8

TTD – Tracked target data

This sentence is used to transmit tracked radar targets in a compressed format. This
enables the transfer of many targets with minimum overhead. New target labels are defined
by the TLB sentence to reduce bandwidth use. Transmission of up to four targets in the
same sentence is possible.

!--TTD,hh,hh,x,s—s,x*hh<CR><LF>

Number of fill-bits, 0 to 5 (see Note 4)

Encapsulated tracked target data (see Note 3)

Sequential message identifier, 0 to 9 (see Note2)

Hex sentence number, 1 to FF (see Note 1)

Total hex number of sentences needed to transfer

the message, 1 to FF (se Note 1)

NOTE 1
The transfer of all tracked targets may require the transmission of multiple
sentences. The first field specifies the total number of sentences used for a
message, minimum value 1. The second field identifies the order of this
sentence in the message, minimum value 1. These cannot be null fields.

NOTE 2

The sequential message identifier provides a message identification number
from 0 to 9 that is sequentially assigned and is incremented for each new
multi-sentence message. The count resets to 0 after 9 is used. For a
message requiring multiple sentences, each sentence of the message
contains the same sequential message identification number. It is used to
identify the sentences containing portions of the same message. This allows
for the possibility that other sentences might be interleaved with the
message sentences that, taken collectively, contain a single message. This
should be a null field for messages that fit into one sentence.

NOTE 3

The tracked target data structure is described below. One sentence may
contain from one up to four structures of 15 characters in the same
sentence. This field supports a maximum of 60 valid characters for
messages transferred using multiple sentences.

NOTE 4

This cannot be a null field. See “x4” in description of encapsulation
sentences in IEC 61162-1.Every target (tracked or AIS) is packed according
to the structure below. Data is stored most significant bit first. Every
message character is converted into six bits. The structure is encapsulated
as 15 characters. The sentence may contain from one to four targets.

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.9

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.10

2.3 Serial Line 3, EPFS - GPS

It is possible to receive RS422 or RS232 standard signal at 4800 or 38400 bps indifferently
on TB3 (FNMEA 3). Note that the circuit is able to receive at 4800 and 38400 bps also with
RS232 connection, but this is not a standard connection according to the IEC 61162-2
standard.

SCHEME 3
IN +
IN ­SHLD
OUT+
OUT­GND

RS 422 Interface Listener Connection

+ IN

"A" Data Input

- IN

"B" Data Input

SHLD

“C” insulated Ground

Input Load

≥ 7KΩ

RS 232 Interface Listener Connection

- IN

RX Data Input

SHLD and + IN

Insulated ground

Input Load

≥ 7KΩ

RS 422 Output Talker Connection

+ OUT

"A" Data Output

- OUT

"B" Data Output

GND

“C” Ground

Output Drive

150 mA

This serial line complies to IEC 61162-1 and IEC 61162-2.
Accepted sentences: ZDA, GLL, GGA, GNS, RMC, DTM and ACK.
Send sentences OSD, RSD and TTM.

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.11

ZDA – Time and date

UTC, day, month, year and local time zone.

$--ZDA, hhmmss.ss, xx, xx, xxxx, xx, xx*hh<CR><LF>

Local zone minutes (see Note),00 to +59

Local zone hours(see Note), 00 h to ±13 h

Year (UTC)

Month, 01 to 12 (UTC)

Day, 01 to 31 (UTC)

UTC

NOTE

Local time zone is the magnitude of hours plus the magnitude of minutes
added, with the sign of local zone hours, to local time to obtain UTC. Local
zone is generally negative for East longitudes with local exceptions near
the International date line.

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.12

GLL – Geographic position – latitude/longitude

Latitude and longitude of vessel position, time of position fix and status.

$--GLL, llll.ll, a, yyyyy.yy, a, hhmmss.ss, A, a *hh<CR><LF>

Mode indicator (see Notes 1 and 2)

Status (see Note 2) A=data valid V=data invalid

UTC of position

Longitude, E/W

Latitude, N/S

NOTE 1

Positioning system mode indicator:

A = Autonomous

D = Differential

E = Estimated (dead reckoning)

M = Manual input

S = Simulator

N = Data not valid

NOTE 2

The mode indicator field supplements the status field (field 6). The status
field should be set to V = invalid for all values of operating mode except for A
= Autonomous and D = Differential. The positioning system mode indicator
and status fields should not be null fields.

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.13

GGA – Global positioning system (GPS) fix data

Time, position and fix-related data for a GPS receiver.
Differential reference station ID, 0000-1023

Age of differential GPS data (see Note 2)

Units of geoidal separation,m

Geoidal separation (see Note 3)

Units of antenna altitude, m

Antenna altitude above/below

mean sea level (geoid)

Horizontal dilution of precision

$--GGA, hhmmss.ss, llll.ll, a, yyyyy.yy, a, x, xx, x.x, x.x, M, x.x, M, x.x, xxxx*hh<CR><LF>

Number of satellites in use, 00-12, may

be different from the number in view

GPS quality indicator (see Note 1)

Longitude E/W

Latitude N/S

UTC of position

NOTE 1

All GPS quality indicators in headings 1 through 8 are considered “valid”.
The heading “0” is the only “invalid” indicator. The GPS quality indicator field
should not be a null field.

0 = fix not available or invalid

1 = GPS SPS mode

2 = differential GPS, SPS mode

3 = GPS PPS mode

4 = Real Time Kinematic. Satellite system used in RTK mode with fixed integers

5 = Float RTK. Satellite system used in RTK mode with floating solution

6 = Estimated (dead reckoning) mode

7 = Manual input mode

8 = Simulator mode

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.14

NOTE 2

Time in seconds since last SC104 type 1 or 9 update, null field when DGPS
is not used.

NOTE 3

Geoidal separation: the difference between the WGS-84 earth ellipsoid
surface and mean sea level (geoid) surface, “ – “ = mean sea level surface
below the WGS-84 ellipsoid surface.

GNS – GNSS fix data

Fix data for single or combined satellite navigation systems (GNSS). This sentence provides
fix data for GPS, GLONASS, possible future satellite systems and systems combining these.
This sentence could be used with the talker identification of GP for GPS, GL for GLONASS,
GN for GNSS combined systems, as well as future identifiers. Some fields may be null fields
for certain applications, as described below.

If a GNSS receiver is capable simultaneously of producing a position using combined
satellite systems, as well as a position using only one of the satellite systems, then separate
$GPGNS, $GLGNS, etc. sentences may be used to report the data calculated from the
individual systems.

If a GNSS receiver is set up to use more than one satellite system, but for some reason one
or more of the systems are not available, then it may continue to report the positions using
$GNGNS, and use the mode indicator to show which satellite systems are being used.

Differential reference station ID (see Note 2)

Age of differential data (see Note 2)

Geoidal separation, m (see Note 4)

Antenna altitude, m,re:mean-sea-level (geoid)

$-- GNS, hhmmss.ss, llll.ll, a, yyyyy.yy, a, c--c,xx,x.x,x.x,x.x,x.x,x.x *hh<CR><LF>

HDOP (see Note 3)

Total number of satellites in use, 00-99

Mode indicator (see Note 1)

Longitude, E/W

Latitude, N/S

UTC of position

NOTE 1

Mode Indicator. A variable length valid character field type with the first two
characters currently defined.

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.15

The first character indicates the use of GPS satellites, the second character indicates the
use of GLONASS satellites. If another satellite system is added to the standard, the mode
indicator will be extended to three characters; new satellite systems shall always be added to
the right, so the order of characters in the mode indicator is: GPS, GLONASS, other satellite
systems.

The characters should take one of the following values:

N = No fix. Satellite system not used in position fix, or fix not valid.

A = Autonomous. Satellite system used in non-differential mode in position fix.

D = Differential. Satellite system used in differential mode in position fix.

P = Precise. Satellite system used in precision mode. Precision mode is defined as: no
deliberate degradation (such as selective availability), and higher resolution code (P-code) is
used to compute position fix.

R = Real time kinematic. Satellite system used in RTK mode with fixed integers.

F = Float RTK. Satellite system used in real time kinematic mode with floating solution.

E = Estimated (dead reckoning) mode.

M = Manual input mode.

S = Simulator mode.

The mode indicator should not be a null field.

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988-10187-004 2.16

RMC – Recommended minimum specific GNSS data

Time, date, position, course and speed data provided by a GNSS navigation receiver. This
sentence is transmitted at intervals not exceeding 2 s and is always accompanied by RMB
when a destination waypoint is active. RMC and RMB are the recommended minimum data
to be provided by a GNSS receiver. All data fields should be provided, null fields used only
when data is temporarily unavailable.

$--RMC, hhmmss.ss, A, llll.ll,a, yyyyy.yy, a, x.x, x.x, xxxxxx, x.x,a, a*hh<CR><LF>

Mode indicator

(see Notes 2 and 3)

Magnetic variation,

degrees, E/W (see Note 1)

Date: dd/mm/yy

Course over ground, degrees true

Speed over ground, knots

Longitude, E/W

Latitude, N/S

Status (see Note 3) A = data valid V = navigation receiver warning

UTC of position fix

NOTE 1

Easterly variation (E) subtracts from true course. Westerly variation (W)
adds to true course.

NOTE 2

Positioning system mode indicator:

A = Autonomous mode

D = Differential mode

E = Estimated (dead reckoning) mode

M = Manual input mode

S = Simulator mode

N = Data not valid

NOTE 3

The positioning system mode indicator field supplements the positioning
system status field (field No. 2) which should be set to V = invalid for all
values of mode indicator except for A = Autonomous

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OSD – Own ship data

Heading, course, speed, set and drift summary. Useful for, but not limited to radar/ARPA
applications. OSD gives the movement vector of the ship based on the sensors and
parameters in use.

$--OSD, x.x,A,x.x, a,x.x,a,x.x,x.x,a*hh<CR><LF>

Speed units, K = km/h; N = knots;

S = statute miles/h

Vessel drift (speed) Manually

Entered

Vessel set, degrees true

Speed reference,B/M/W/R/P (see Note)

Vessel speed

Course reference, B/M/W/R/P (see Note)

Vessel course, degrees true

Heading status: A = data valid, V = data invalid

Heading, degrees true

NOTE

Reference systems on which the calculation of vessel course and speed is
based. The values of course and speed are derived directly from the
referenced system and do not additionally include the effects of data in the
set and drift fields.

B = bottom tracking log

M = manually entered

W = water referenced

R = radar tracking (of fixed target)

P = positioning system ground reference.

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988-10187-004 2.18

RSD – Radar system data

Radar display setting data.

$--RSD, x.x, x.x,x.x, x.x,x.x, x.x,x.x, x.x,x.x, x.x, x.x, a, a*hh<CR><LF>

Display rotation (see Note 1)

Range units, K = km

N = nautical miles

S = statute miles

Range scale in use

Cursor bearing, degrees clockwise from 0°

Cursor range, from own ship

EBL 2, degrees

VRM 2, range

Origin 2 bearing (see Note 2)

Origin 2 range (see Note 2)

Bearing line 1 (EBL1), degrees from 0°

Variable range marker 1 (VRM1), range

Origin 1 bearing (see Note 2) degrees from 0°

Origin 1 range (see Note 2), from own ship

NOTE 1

Display rotation:
C = course-up, course-over-ground up, degrees true
H = head-up, ship's heading (centre-line) 0° up
N = north-up, true north is 0° up

NOTE 2

Origin 1 and origin 2 are located at the stated range and bearing from own
ship and provide for two independent sets of variable range markers (VRM)
and electronic bearing lines (EBL) originating away from own ship position.

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988-10187-004 2.19

TTM – Tracked target message

Data associated with a tracked target relative to own ship's position.

$--TTM, xx, x.x, x.x, a, x.x, x.x, a, x.x, x.x, a, c--c, a, a, hhmmss.ss, a *hh<CR><LF>

Type of acquisition

A = Automatic

M = manual

R = reported

Time of data (UTC)

Reference target (see Note 2)= R,

null otherwise

Target status (see Note 1)

Target name

Speed/distance units, K/N/S

Time to CPA, min., "-" increasing

Distance of closest-point-of-approach

Target course, degrees true/relative (T/R)

Target speed

Bearing from own ship, degrees true/relative (T/R)

Target distance from own ship

Target number, 00 to 99

NOTE 1 Target status:

L = Lost, tracked target has been lost

Q = Query, target in the process of acquisition

T = Tracking

NOTE 2 Reference

NOTE

All the position data sent out via TTM and TTD is always relative to the
CCRP

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988-10187-004 2.20

DTM - Datum reference

Local geodetic datum and datum offsets from a reference datum. This sentence is used to
define the datum to which a position location, and geographic locations in subsequent
sentences, are referenced. Latitude, longitude and altitude offsets from the reference datum,
and the selection of the reference datum, are also provided.

Cautionary notes: the datum sentence should be transmitted immediately prior to
every positional sentence (e.g. GLL, BWC, WPL) which is referenced to a datum other
than WGS84, the datum recommended by IMO.

For all datums the DTM sentence should be transmitted prior to any datum change
and periodically at intervals of not greater than 30 s.

$--DTM,ccc,a,x.x,a,x.x,a, x.x,ccc*hh<CR><LF>

Reference datum

Altitude offset, m (see Note 3)

Lon offset, min, E/W (see Note 3)

Lat offset, min, N/S (see Note 3)

Local datum subdivision code (see Note 2)

Local datum:

(see Note 1)

NOTE 1
Three character alpha code for local datum. If not one of the listed earth­centred datums, or 999 for user defined datums, use IHO datum code from
International Hydrographic Organisation Publication S-60, Appendices B and
C. Null field if unknown. This field should be set to 999 when manual offsets
are entered and in use by the position fixing device.

NOTE 2
One character subdivision datum code when available or user defined
reference character for user defined datums, null field otherwise. Subdivision
character from IHO Publication S-60, Appendices B and C.

NOTE 3
Latitude and longitude offsets are positive numbers, the altitude offset may
be negative. Offsets change with position: position in the local datum is
offset from the position in the reference datum in the directions indicated:

WGS84 = W84

WGS72 = W72
SGS85 = S85
PE90 = P90

WGS84 = W84

WGS72 = W72

SGS85 = S85

PE90 = P90

User defined = 999

IHO datum code (see Note 4)

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988-10187-004 2.21

Plocal datum = Pref datum + offset

When field 1 contains a value of 999, these fields may not be null, and should contain the
manually entered or user defined offsets.

NOTE 4
Users should be aware that chart transformations based on IHO S60
parameters may result in significant positional errors when applied to chart
data.

WPL – Waypoint location

Latitude and longitude of specified waypoint.

$--WPL, llll.ll, a, yyyyy.yy, a, c--c*hh<CR><LF>

Waypoint identifier

Waypoint longitude, E/W

Waypoint latitude, N/S

NOTE 1

Waypoints with name field are not accepted.

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988-10187-004 2.22

RTE – Routes

Waypoint identifiers, listed in order with starting waypoint first, for the identified route. Two
modes of transmission are provided: "c" indicates that the complete list of waypoints in the
route is being transmitted; "w" indicates a working route where the first listed waypoint is
always the last waypoint that had been reached (FROM), while the second listed waypoint is
always the waypoint that the vessel is currently heading for (TO) and the remaining list of
waypoints represents the remainder of the route.

$--RTE, x.x, x.x, a, c--c, c--c,...... c--c*hh<CR><LF>

Waypoint "n" identifier (see Note 1)

Additional waypoint identifiers (see Note 1)

Waypoint identifier

Route identifier

Message mode: c = complete route, all waypoints

w = working route, first listed waypoint is "FROM",

second is "TO" and remaining are rest of route

Sentence number (see Note 2)

Total number of sentences being transmitted (see Note 2)

NOTE 1

A variable number of waypoint identifiers, up to "n", may be included within
the limits of allowed sentence length. As there is no specified number of
waypoints, null fields are not required for waypoint identifier fields.

NOTE 2

A single route may require the transmission of multiple sentences, all
containing identical field formats when sending a complex message. The
first field specifies the number of sentences, minimum value = 1. The second
field identifies the order of this sentence (sentence number), minimum value
= 1. For efficiency, it is permitted that null fields be used in the additional
sentences when the data is unchanged from the first sentence.
(Note that this practice can lead to the incorrect assembly of sentences if
there is a high risk of loss of sentence.).

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988-10187-004 2.23

MWD – Wind direction and speed

The direction from which the wind blows across the earth’s surface, with respect to north,
and the speed of the wind.

$--MWD, x.x,T,x.x,M,x.x,N,x.x,M*hh<CR><LF>

Wind speed, m/s

Wind speed, knots

Wind direction, 0° to 359° magnetic

Wind direction, 0° to 359° true

MWV – Wind speed and angle

When the reference field is set to R (Relative), data is provided giving the wind angle in
relation to the vessel's bow/centreline and the wind speed, both relative to the (moving)
vessel. Also called apparent wind, this is the wind speed as felt when standing on the
(moving) ship.

When the reference field is set to T (Theoretical/calculated wind), data is provided giving the
wind angle in relation to the vessel's bow/centreline and the wind speed as if the vessel was
stationary. On a moving ship, these data can be calculated by combining the measured
relative wind with the vessel's own speed.

Example 1 If the vessel is heading west at 7 knots and the wind is from the east at 10 knots
the relative wind is 3 knots at 180°. In this same example the theoretical wind is 10 knots at
180° (if the boat suddenly stops the wind will be at the full 10 knots and come from the stern
of the vessel 180° from the bow).

Example 2 If the vessel is heading west at 5 knots and the wind is from the southeast at 7,07
knots the relative wind is 5 knots at 270°. In this same example the theoretical wind is 7,07
knots at 225° (if the boat suddenly stops the wind will be at the full 7,07 knots and come
from the port-quarter of the vessel 225° from the bow).

$--MWV, x.x, a, x.x, a, A *hh<CR><LF>

Status, A = data valid V= data invalid

Wind speed units, K = km/h

M = m/s

N = knots

Wind speed

Reference, R = relative, T = true

Wind angle, 0° to 359°

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988-10187-004 2.24

DPT – Depth

Water depth relative to the transducer and offset of the measuring transducer. Positive offset
numbers provide the distance from the transducer to the waterline. Negative offset numbers
provide the distance from the transducer to the part of the keel of interest.

$--DPT, x.x, x.x, x.x*hh<CR><LF>

Maximum range scale in use

Offset from transducer, in metres (see Notes 1 and 2)

Water depth relative to the transducer, in metres

NOTE 1

“positive” = distance from transducer to water line; “-“ = distance from
transducer to keel.

NOTE 2

For IEC applications, the offset should always be applied so as to provide
depth relative to the keel.

DBT – Depth below transducer

Water depth referenced to the transducer.

$--DBT, x.x, f, x.x, M, x.x, F*hh<CR><LF>

Water depth, fathoms

Water depth, m

Water depth, feet

ROR – Rudder order status

Angle ordered for the rudder.

$--ROR,x.x,A,x.x,A,a*hh<CR><LF>

Command source location (as TRC)

Port rudder order (see Notes 1 and 2)

Status A = data valid, V = data invalid

Starboard (or single) rudder order (see Notes 1 and 2)

Status A = valid,V = data invalid

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988-10187-004 2.25

NOTE 1

Relative measurement of rudder order angle without units, "-" = bow turns to
port.

NOTE 2

The status field should not be a null field.

RSA – Rudder sensor angle

Relative rudder angle, from rudder angle sensor.

$--RSA, x.x, A, x.x, A*hh<CR><LF>

Port rudder sensor (see Notes 1 and 2)

Status A = data valid,

V = data invalid

Starboard (or single) rudder sensor

(see Notes 1 and 2)

Status A = valid,

V = data invalid

NOTE 1

Relative measurement of rudder angle without units, "-" = bow turns to port.
Sensor output is proportional to rudder angle but not necessarily 1:1.

NOTE 2

The status field should not be a null field.

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988-10187-004 2.26

XDR – Transducer measurements

Measurement data from transducers that measure physical quantities such as temperature,
force, pressure, frequency, angular or linear displacement, etc. Data from a variable number
of transducers measuring the same or different quantities can be mixed in the same
sentence.

This sentence is designed for use by integrated systems as well as transducers that may be
connected in a "chain" where each transducer receives the sentence as an input and adds
on its own data fields before retransmitting the sentence.

$--XDR, a, x.x, a, c--c,................ a, x.x, a, c--c*hh<CR><LF>

Transducer "n" (see Note 1)

Data, variable number of transducers

Transducer No. 1 ID

Units of measure, transducer No. 1

(see Note 2)

Measurement data, transducer No. 1

Transducer type, transducer No. 1 (see

Note 2)

NOTE 1

Sets of the four fields "type-data-units-ID" are allowed for an undefined
number of transducers. Up to "n"transducers may be included within the
limits of allowed sentence length; null fields are not required except where
portions of the "type-data-units-ID" combination are not available.

NOTE 2

Allowed transducer types and their units of measure are as specified in
below table – see next page.

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988-10187-004 2.27

Transducer

Type

field

Units Comments

Temperature

C

C = degrees Celsius

Angular

displacement

A D = degrees "-" = anticlockwise

Absolute humidity

B

K = kg/m3

Kilograms per cubic metre

Linear

displacement

D M = metre "-" = compression

Frequency

F

H = Hertz

Salinity

L

S = ppt

ppt = parts per thousand

Force

N

N = newtons

"-" = compression

Pressure

P

P = pascals

"-" = vacuum

Flow rate

R

l = litres/s

Tachometer

T

R = revolutions/min

Humidity

H

P = per cent

Volume

V

M = cubic metres

Voltage

U

V = volts

Current

I

A = amperes

Switch or valve S None (null)

1 = ON, CLOSED;

0 = OFF, OPEN

Generic

G None (null) x.x = variable data

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988-10187-004 2.28

2.4 Serial Line 4

It is possible to receive RS422 or RS232 standard signal at 4800 bps indifferently on TB2
(422). Note that the circuit is able to receive at 4800 bps also with RS232 connection, but
this is not a standard connection according to the IEC 61162-2 standard.

RS 422 Interface Listener Connection

+ IN_4

"A" Data Input

- IN_4

"B" Data Input

SHLD_4

“C” insulated Ground

Input Load

≥ 3 KΩ

RS 232 Interface Listener Connection

- IN_4

RX Data Input

SHLD_4 and + IN_4

Insulated ground

Input Load

≥ 3 KΩ

This serial line complies to IEC 61162-1 and IEC 61162-2.
Accepted sentences: VBW and VHW.

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988-10187-004 2.29

VBW – Dual ground/water speed

Water-referenced and ground-referenced speed data.

$--VBW, x.x, x.x, A, x.x, x.x, A, x.x, A, x.x, A*hh<CR><LF>

Status (see Note 2): stern ground speed,

A = data valid, V = data invalid

Stern transverse ground speed (see Note 1),

knots

Status (see Note 2): stern water speed,

A = data valid, V = data invalid

Stern transverse water speed (see Note 1), knots

Status (see Note 2), ground speed,

A = data valid, V = data invalid

Transverse ground speed (see Note 1), knots

Longitudinal ground speed (see Note 1), knots

Status (see Note 2): water speed, A = data valid, V = data invalid

Transverse water speed (see Note 1), knots

Longitudinal water speed (see Note 1), knots

NOTE 1

Transverse speed: "-" = port,

Longitudinal speed: "-" = astern.

NOTE 2

The status field should not be a null field.

VHW – Water speed and heading

The compass heading to which the vessel points and the speed of the vessel relative to the
water.

$--VHW, x.x, T, x.x, M, x.x, N, x.x, K*hh<CR><LF>

Speed, km/h

Speed, knots

Heading, degrees magnetic

Heading, degrees true

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988-10187-004 2.30

2.5 Serial Line 5

It is possible to receive RS422 or RS232 standard signal at 2400 or 4800 bps indifferently on
TB6 (232+422_2).

SCHEME 1
IN +
IN ­GND
422+
422­232

RS422 Interface Listener Connection

+ IN

"A" Data Input

- IN

"B" Data Input

GND

“C” Ground

Input Load

≥ 3 KΩ

RS232 Interface Listener Connection

- IN

RX Data Input

GND and + IN

Ground

Input Load

≥ 3 KΩ

RS422 Output Talker Connection

+ OUT

"A" Data Output

- OUT

"B" Data Output

GND

“C” Ground

Output Drive

150 mA

RS 232 Output Talker Connection

TX

TX Data Output

GND

GND

Output Drive

10 mA

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988-10187-004 2.31

2.6 Serial Line 6

It is possible to receive RS422 or RS232 standard signal at 2400 or 4800 bps indifferently on
TB12 (232+422_1).

RS 422 Interface Listener Connection

+ IN_6

"A" Data Input

- IN_6

"B" Data Input

GND

“C” Ground

Input Load

≥ 3 KΩ

RS 232 Interface Listener Connection

- IN_6

RX Data Input

GND and + IN_6

Ground

Input Load

≥ 3 KΩ

RS 422 Output Talker Connection

+ OUT_6

"A" Data Output

- OUT_6

"B" Data Output

GND

“C” Ground

Output Drive

150 mA

RS 232 Output Talker Connection

TX_6

TX Data Output

GND

GND

Output Drive

10 mA

Argus Radar - SERIAL INTERFACE SPECIFICATIONS

988-10187-004 2.32

2.7 Serial Line 7

It is possible to receive RS422 or RS232 standard signal at 4800 indifferently on TB10 (422).
Note that the circuit is able to receive at 4800 bps also with RS232 connection, but this is not
a standard connection according to the IEC 61162-2 standard.

RS 422 Interface Listener Connection

+ RX_7

"A" Data Input

- RX_7

"B" Data Input

GND

“C” Ground

Input Load

≥ 3 KΩ

RS 232 Interface Listener Connection

- RX_7

RX Data Input

GND and + RX_7

Ground

Input Load

≥ 3 KΩ

RS 232 Output Talker Connection

TX_7

TX Data Output

GND

GND

Output Drive

10 mA

The output is the source of RAALR sentences.

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988-10187-004 2.33

2.8 Serial Line 8

It is possible to receive RS422 or RS232 standard signal at 4800 indifferently on TB4 (422).
Note that the circuit is able to receive at 4800 bps also with RS232 connection, but this is not
a standard connection according to the IEC 61162-2 standard.
Using unconventional sensors setup is possible to set if the alert management system is a
BAM or a Legacy management system (supporting ALR and ACK sentences)

ACN – Alert command

This sentence is used for acknowledge, silence, responsibility transfer and to request repeat
of alert details in case the reception process has detected, based on ALC, that ALF has
been missed.

Responsibility transferred is used for a special conditional state of an alert. In this state the
source of an alert indicates the alert visually as an acknowledged alert (i.e. no flashing
indication nor audible signal). In this state the source of an alert re-raises an
unacknowledged alert, if the source of the alert is unable to receive heartbeat (HBT)
sentences from the sender of the sentence.

This sentence cannot be queried.

$--ACN,hhmmss.ss, aaa, x.x, x.x, c, a*hh <CR><LF>

Sentence status flag (see Note 6)

Alert command, A, Q, O or S (see Note 5)

Alert Instance, 1 to 999999 (see Note 4)

Alert Identifier (see Note 3)

Manufacturer mnemonic code (see Note 2)

Time (see Note 1)

NOTE 1

Release time of the alert command. (e.g. for VDR purposes), optional can be
a null field. Sender is allowed to use all alternatives defined in IEC 61162­1:2010, Table 5, Field type summary. The receiver is allowed to ignore the
content of this field. If the receiver does not ignore this field it should support
all alternatives defined in IEC 61162-1:2010, Table 5, Field type summary.

NOTE 2

Used for proprietary alerts defined by the manufacturer. For standardized
alerts this should be a null field.

NOTE 3

The alert identifier is unique within a single alert source. The alert identifier is
a variable length integer field of maximum 7-digit integer. It identifies the
type of the alert e.g. a “lost target” alert. Number range 10000-9999999 is
reserved for proprietary alerts. Alert Identifier examples: “001”, “2456789”,
“245”

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988-10187-004 2.34

NOTE 4

The alert instance identifies the current instance of an alert to distinguish
alerts of the same type (Alert identifier) and from the same source (e.g.
dangerous target). Alert instance is maximum 6-digit integer from 1 to

999999. The number of alert instance can be freely defined by the
manufacturer as long as it is unique for one type of alert (alert identifier). It is
not permitted to modify the alert instance within a life cycle of a distributed
alert (from ‘active-unacknowledged’ state until ‘normal’ state is reached). It
can also be a null field, when there is only one alert of that type.

NOTE 5

This should not be null field acknowledge: A request / repeat information: Q
responsibility transfer: O, silence: S

NOTE 6

This field should be “C” and should not be null field. This field indicates a
command. A sentence without “C” is not a command.

ALC – Cyclic alert list

The purpose of this sentence is to satisfy the needs for a safe and consistent data
distribution with a minimum of data traffic. Each change on an alert’s data leads to an
incremented Revision counter. So an alert processing device only needs to check the alert
entries in the ALC messages to ensure that no ALF message has been lost. In the case
where an ALF message has been lost, the missing message can be requested by sending a
request alert command (see Clause K.2).

The ALC sentence provides condensed ALF sentence information. It contains the identifying
data for each present alert of one certain source/device so that the receiver can understand
which ALF has been missed (and retransmission of ALF can be requested by using the ACN
sentence). It shall be published cyclically at least every 30 s by each alert generating device.

The cyclic alert list transmission shall never stop. When all alerts are in normal state the
cyclic alert list is empty, i.e. the number of alert entries is 0.

The length of this sentence varies with the number of alerts (number of list entries) that are
being generated. In cases where the needed number of entries exceeds the permitted
sentence length the number of sentences is increased.

Alert entry n (see Note 4)

$--ALC, xx, xx, xx, x.x, aaa, x.x ,x.x ,x.x,……..,aaa, x.x, x.x, x.x*hh <CR><LF>

Additional Alert entries (see Note 4)

Revision counter Alert entry 1

Alert instance (see Note 4)

Alert identifier

Manufacturer mnemonic code

Number of alert entries (see Note 3)

Sequential message identifier, 00 to 99 (see Note 2)

Sentence number, 01 to 99 (see Note 1)

Total number of sentences for this message, 01 to 99 (see Note 1)

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988-10187-004 2.35

NOTE 1

The first field specifies the total number of sentences used for a message,
minimum value 1. The second field identifies the order of this sentence in the
message, minimum value 1. These cannot be null fields.

NOTE 2

The sequential message identifier relates all sentences that belong to a
group of multiple sentences (i.e. message). Multiple sentences (see Note 1)
with the same sequential message identifier, make up one message.

NOTE 3

Contains the number of alert entries transported within this sentence.

NOTE 4

Alert entry 0 – n: Each alert entry consists of four fields:



Manufacturer Identifier (see ALF Manufacturer Identifier);



Alert Identifier (see ALF Alert Identifier);



Alert instance (see ALF Alert instance);



Revision Counter (see ALF Revision Counter).

Each entry identifies a certain alert with a certain state. It is not allowed that
an alert entry is split between two ALC sentences.

ALF – Alert sentence

This sentence is used to report an alert condition and the alert state of a device. An ALF
message shall be published for an alert each time the alert information in this sentence
changes and on alert request (see Clause K.2).

To transmit additional alert description text (see Note 12), optionally a second ALF sentence
may be transmitted.

$$--ALF, x, x, x, hhmmss.ss, a, a, a, aaa, x.x, x.x, x.x, x, c---c*hh <CR><LF>

Alert text (see Note 12)

Escalation counter, 0 to 9 (see Note 11)

Revision counter, 1 to 99 (see Note 10)

Alert instance, 1 to 999999 (see Note 9)

Alert identifier (see Note 8)

Manufacturer mnemonic code (see Note 7)

Alert state, A, S, N, O, U or V (see Note 6)

Alert priority, E, A, W or C (see Note 5)

Alert category, A, B or C (see Note 4)

Time of last change (see Note 3)

Sequential message identifier, 0 to 9 (see Note 2)

Sentence number, 1 to 2 (see Note 1)

Total number of ALF sentences for this message, 1 to 2 (see Note 1)

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988-10187-004 2.36

NOTE 1

The first field specifies the total number of sentences used for a message,
minimum value 1. The second field identifies the order of this sentence in the
message, minimum value 1. These cannot be null fields. When the sentence
number is 2, the following Alert category, Alert priority and Alert state can be
null fields.

NOTE 2

The sequential message identifier relates all sentences that belong to a
group of multiple sentences (i.e. message). Multiple sentences (see Note 1)
with the same sequential message identifier, make up one message.

NOTE 3

Time should represent the last time the data within the alert message has
changed. For example changing the alert text by in-/decrementing a
contained counter or count down should cause a revision of alert message
and a new time. Time is an optional field. The time-field is additional
information about when this happened and not used for decision making.
There is no mandatory requirement for time synchronization between the
equipment. It should be either a null field (if not used) or UTC (if used).
Sender is allowed to use all alternatives defined in IEC 61162-1:2010, Table
5, Field type summary. The receiver is allowed to ignore the content of this
field. If the receiver does not ignore this field, it should support all
alternatives defined in IEC 61162-1:2010, Table 5, Field type summary.

NOTE 4

The alert category is in compliance with the category definition as described
in INS Performance Standard (MSC.252(83)) and Bridge Alert Management
Performance Standard (MSC.302(87)):
A, Category A: Alerts, where information at the operator unit is directly
assigned to the function generating the alert is necessary, as decision
support for the evaluation of the alert-related condition, e.g. graphical
information of danger of collision or graphical information of danger of
grounding.
B, Category B: Alerts where no additional information for decision support is
necessary besides the information which can be presented using the alert
source and the text description of the alert.
C, Category C: Alerts that cannot be acknowledged on the bridge but for
which information is required about the status and treatment of the alerts,
e.g. certain alerts from the engine.

NOTE 5

Alert priority:
Emergency Alarm: E, for use with Bridge Alert Management, (see IMO
MSC.302(87))
Alarm: A
Warning: W
Caution: C

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988-10187-004 2.37

NOTE 6

active – unacknowledged: V
active – silenced: S
active – acknowledged or active: A
active – responsibility transferred: O
rectified – unacknowledged: U
normal: N

NOTE 7

Used for proprietary alerts defined by the manufacturer. For standardized
alerts this should be a null field.

NOTE 8

The alert identifier is unique within a single alert source. The alert identifier is
a variable length integer field of maximum a 7-digit integer. It identifies the
type of the alert, e.g. a “lost target” alert. Number range 10000-9999999 is
reserved for proprietary alerts. Alert Identifier examples: “001”, “2456789”,
“245”.

NOTE 9

The alert instance identifies the current instance of an alert to distinguish
alerts of the same type (Alert identifier) and from the same source (e.g.
dangerous target). Alert instance is maximum a 6-digit integer from 1 to

999999. The number of alert instance can be freely defined by the
manufacturer as long as it is unique for one type of alert (alert identifier). It is
not permitted to modify the alert instance within a life cycle of a distributed
alert (from ‘active-unacknowledged’ state until ‘normal’ state is reached). It
can be also a null field, when there is only one alert of that type.

NOTE 10

The revision counter is the main method to follow an up-to-date status. The
revision counter is also unique for each instance of alert. The revision
counter starts with 1 and the step for an increment is 1. The count resets to
1 after 99 is used. The revision counter increments on each change of
content of any field of the alert.

NOTE 11

The escalation counter is presenting the number of alert escalations after
time expiration during the state active-unacknowledged. The escalation
counter starts with 0 and the step for increment is 1. The count resets to 1
after 9 is used. The alert escalation can be the escalation from warning into
warning (activation of audible signal only), the escalation from warning to
alarm, or the escalation from alarm to alarm with the activation of backup
navigator alarm.

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988-10187-004 2.38

NOTE 12

This field is used for the Alert title which is mandatory and for an additional
alert description which is optional.

•

The first ALF sentence transmits the Alert title. An Alert title is maximum

16 characters short form of the alert text.

•

The optional second ALF sentence transmits the additional alert

description. Additional alert description is the long description of the alert.
The additional alert description contains more information for decision
making (i.e. alert description text).

•

The second ALF sentence uses null fields for Time of last change, Alert

category, Alert priority, and Alert state to allow longer text. The actual
number of valid characters should be such that the total number of
characters in a sentence does not exceed the “82”-character limit.

•

Some equipment standards specify alert text longer than 16 characters

(for example the AIS standard has defined some alerts to be coded with
ALR-sentence and with text longer than 16 characters). In such cases,
the first ALF sentence is used for the first 16 characters of the alert text as
alert title and the second ALFsentence to carry the full alert text.
EXAMPLES:
$IIALF,1,1,0,124304.50,A,W,A,,192,1,1,0,LOST TARGET*14<CR><LF>
$IIALF,2,1,1,081950.10,B,A,S,XYZ,0512,1,2,0,HEADING
LOST*2D<CR><LF>
$IIALF,2,2,1,,,,,XYZ,0512,1,2,0,NO SYSTEM HEADING
AVAILABLE*0D<CR><LF>

ARC – Alert command refused

This sentence is used for:

• Category A or C alerts (see IMO MSC.302(87)), for which it is illegal to accept
acknowledge or responsibility transfer, e.g. not enough information for decision support

available or the source of acknowledgement is not acceptable,
Note that in a properly working system such attempts should not happen.

• Category B (see IMO MSC.302(87)), if the source of acknowledge is not acceptable.

$--ARC, hhmmss.ss, aaa, x.x, x.x, c*hh <CR><LF>

Refused alert command, A, Q, O or S (see Note 5)

Alert instance, 1 to 999999 (see Note 4)

Alert identifier (see Note 3)

Manufacturer mnemonic code (see Note 2)

Time (see Note 1)

NOTE 1

Release time of the Alert Command Refused, e.g. for VDR purposes,
optional, can be a null field. The sender is allowed to use all alternatives
defined in IEC 61162-1:2010, Table 5, Field type summary. The receiver is
allowed to ignore the content of this field. If the receiver does not ignore this
field it should support all alternatives defined in IEC 61162-1:2010, Table 5,
Field type summary.

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988-10187-004 2.39

NOTE 2

Used for proprietary alerts, defined by the manufacturer. For standardized
alerts this should be a null field.

NOTE 3

The alert identifier is unique within a single alert source. The alert identifier is
a variable length integer field of maximum a 7-digit integer. It identifies the
type of the alert, e.g. a “lost target” alert. Number range 10000-9999999 is
reserved for proprietary alerts. Alert Identifier examples: “001”, “2456789”,
“245”.

NOTE 4

The alert instance identifies the current instance of an alert to distinguish
alerts of the same type (Alert identifier) and from the same source (e.g.
dangerous target). Alert instance is maximum a 6-digit integer from 1 to

999999. The number of alert instance can be freely defined by the
manufacturer, as long as it is unique for one type of alert (alert identifier). It
is not permitted to modify the alert instance within a life cycle of a distributed
alert (from ‘active-unacknowledged’ state until ‘normal’ state is reached). It
can also be a null field, when there is only one alert of that type.

NOTE 5

Refused Alert Command: Indicates refused “Alert command” of a
corresponding ACN sentence. This should not be a null field.
acknowledge: A
request / repeat information: Q
responsibility transfer: O
silence: S

EVE – General event message

This sentence is used to transmit events (e.g. actions by the crew on the bridge) with a time
stamp.

$--EVE,hhmmss.ss,c--c,c--c*hh<CR><LF>

Event description

Tag code used for identification of source of event (see Note)

Event time (see Note)

NOTE This may be a null field.

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988-10187-004 2.40

HBT – Heartbeat supervision sentence

This sentence is intended to be used to indicate that equipment is operating normally, or for
supervision of a connection between two units.

The sentence is transmitted at regular intervals specified in the corresponding equipment
standard. The repeat interval may be used by the receiving unit to set the time-out value for
the connection supervision.

$--HBT,x.x,A,x*hh<cr><lf>

Sequential sentence identifier (see Note 3)

Equipment status (see Note 2)

Configured repeat interval (see Note 1)

NOTE 1

Configured autonomous repeat interval in seconds. This field should be set
to NULL in response to a query if this feature is supported.

NOTE 2

Equipment in normal operation A = yes, V = no
This field can be used can be used to indicate the current equipment status.
This could be the result of an built-in integrity testing function.

NOTE 3

The sequential sentence identifier provides a message identification number
from 0 to 9 that is sequentially assigned and is incremented for each new
sentence. The count resets to 0 after 9 is used.

ACK – Acknowledge alarm

Acknowledge device alarm. This sentence is used to acknowledge an alarm condition
reported by a device.

$--ACK,xxx*hh<CR><LF>

Unique alarm number (identifier) at alarm source

ALR – Set alarm state

Local alarm condition and status. This sentence is used to report an alarm condition on a
device and its current state of acknowledgement.

$--ALR,hhmmss.ss,xxx,A, A,c--c*hh<CR><LF>

Alarm’s description text

Alarm’s acknowledge state, A = acknowledged

V = unacknowledged

Alarm condition (A = threshold exceeded, V = not exceeded)

Unique alarm number (identifier) at alarm source

Time of alarm condition change, UTC

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988-10187-004 2.42

Antares PCB Serial In / Out Port Summary

Processor

Device and

Connector Name

Used For

Input

Type

Output

Type

Input /

Output Baud

Rate

A

ttyS0 Standard Out Console 232 232 57600

ttyS1 Keyboard 232 232 38400

ttyS2 TB10 Wind Sensor /RAALR 422/232 232 4800

ttyS3 TB4 BAM 422/232 232 4800

B

ttyS0 Standard Out Console 232 232 57600

ttyS1 TB9 Gyro 422/232 422 4800 / 38400

ttyS2 TB8

AIS In / AIS ACK and

TTD-TLB Out

422/232 422 38400

ttyS3 TB3 INS / EPFS / ECDIS 422/232 422 4800 / 38400

ttyS4 TB2 Speed Log 422/232 422 4800

ttyS5 TB6 Serial TXRX 1 422/232 422/232 4800

ttyS6 TB12 Serial TXRX 2 422/232 422/232 4800

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988-10187-004 3.1

CHAPTER 3

RADAR CONFIGURATION

3.1 How to access the Radar Configuration

To access the Radar configuration a password is required. It will then be possible to make
the necessary adjustments in the System Configuration, plus some Debug and Simulation
facilities are available.

After enabling this function, it will be open for adjustment until the system is switched to
STAND BY.

3.1.1 Radar Configuration

To obtain access to the Radar Configuration MENU, please follow the procedure below.
It will take you into the Super User Mode of the Argus system. Remember to save all
settings and exit the mode again as soon as configurations are completed!

1) Press “Radar Configuration” in the Main Menu bar on the display:

2) Enter the password "HIGH" using the alphanumerical keypad:

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988-10187-004 3.2

3) Before entering the setup, a check dialog appear on screen with the following warning:

Fig 3.1.1 Security Check

The console setup is necessary for the commissioning of the system. From the console
display, using only the trackball, it's possible to configure and adjust all parts of the
system. Several functions of the console setup can normally only be accessed by an
authorized service engineer using a password to gain access. Please contat Navico
service if you need assistance.

Fig 3.1.2 Radar configuration Menu

C

D

E

G

L

O

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988-10187-004 3.3

3.2 Gyrocompass Configuration

To configure the Argus radar settings for connected gyro:

Press the "A" button in fig. 3.1.2, page 3.2, to open the following window:

Figure 3.2.1 Gyro compass Configuration Menu

The first row, “Gyro Connected As” indicates the type of Gyro. By pressing the associated
button will open the following list:

The selection changes the type of interface used, and for NMEA (referring to NMEA 0183)
serial, the baud rate.

By pressing the “Negative Phases” associated button, another list will open, showing the
possibilities of Gyro ratio.

The list is valid and activated only when the Gyro is not serial.

Use the list to define how many cycles of stepper or synchro are calculated for each 360°
Gyro turn.

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988-10187-004 3.4

Examples:

1:360 means that each stepper or synchro cycle corresponds to 1 degree and 1 complete

360° turn correspond to 360 cycles. For this setup the gyro resolution will be 1/6°

1:36 means that each stepper or synchro cycle corresponds to 10 degree, and 1 complete

360° turn correspond to 36 cycles.

Normally, for most Gyro types, the Gyro Ratio is 1:360.

Other settings are available with analogue gyro, one is the “Reference generated
Internally” checkbox that is the usual setup for stepper gyro.

When the reference signal to sample phases is external, the checkbox should not be
activated.

Another checkbox “Negative Phases” is available in stepper mode, and it should be
checked, when the voltage on phase is going from zero to negative.

The S1, S2, S3 symbols can be highlighted and reflect exactly the same gyro phases
states described in the analogue gyro section.

The user manual explains the analogue gyro interface operation.

Note that this kind of interface does not permit equal phase levels, or lack of reference
signal (synchro mode). Failure warnings due to incorrect settings can only be cleared by
correcting the gyro settings.

The gyro preset is necessary also because this kind of interface is not absolute, but
receives incremental pulses and therefore needs a preset value taken when the ship’s
heading is stable.

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988-10187-004 3.5

3.3 Speed LOG Configuration

In this menu it is possible to configure the connection of a Speed LOG to the radar, by
pressing the "B" button on fig. 3.1.2, page 3.2, the following window will be displayed:

Figure 3.3.1 Speed Log Configuration

The first row indicates the type of Speed Log connected. By pressing the asociated
button, the following list will open:

If the speed log signal is NMEA (referring to NMEA 0183), it is necessary to select the
Input where it is connected, push the B button on fig. 3.1.2, page 3.2, to switch between
the possibilities.

Type Function

100 p/NM

PIT dry contact, 100 pulses per NM

200 p/NM

PIT dry contact, 200 pulses per NM

400 p/NM

PIT dry contact, 400 pulses per NM

120 p/mt

FOR signal input, 120 pulses per meter

20000 p/NM

FOR signal input , 20000 pulses per NM

NMEA

RS232/422 NMEA 0183 serial connection

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988-10187-004 3.6

3.4 Own Ship Dim. and Weight

By pressing the “Own Ship Dim. and Weight " button, the following window will appear:

Figure 3.4.1 Own Ship Dim. and Weight

In the window, it is possible to insert the following data:

• Weight: by pressing the relevant button will open a list:

The list shows a selection of 8 pre-defined Tonnage / ROT values. The chosen selection
related to the tonnage of the ship will be used to define the Rate of Turn for the Trial
Manoeuvre computing.

Be sure to select a relevant value, otherwise the Trial Manoeuvre will provide
incorrect information;

Length: look to the help line for correct use of the 3 Mouse Operating Push Buttons in

order to decrease, increase the length value or input a new length value in meters.

Width: look to the help line for correct use of the 3 Mouse Operating Push Buttons in
order to decrease, increase the width value or input a new width value in meters.

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988-10187-004 3.7

3.5 Conning and EPFS Pos. Configuration Menu

By pressing the “Conning and EPFS Position” button, the following window will appear:

Figure 3.5.1 Conning and EPFS Position

Conning Position: Look to the help line for correct use of the 3 Mouse Operating Push
Buttons in order to decrease, increase the X or Y value or input a new X or Y value in
meters. A picture of the ship profile and a text on line will be drawn in order to help the
operator to insert the correct values. This is the position of the EPFS referred to the
graphical shape as indicated in the figure. This value is used to calculate the exact
geographical coordinate of the antenna position. Length and width are not used when AIS
is connected, instead they are extracted from the VDO static message. The CCRP will be
located at the conning position.

EPFS Ant. Position: Look to the help line for correct use of the 3 Mouse Operating Push
Buttons in order to decrease, increase the X or Y value or input a new X or Y value in
meters. A picture of the ship profile and a text on line will be drawn in order to help the
operator to insert the correct values. This is the position of the EPFS referred to the
graphical shape as indicated in the figure. This value is used to calculate the exact
geographical coordinate of the GPS antenna position.

EPFS Datum Check: Accept the DTM sentence when the checkbox is signed. The datum
is used to compensate local geographic coordinates with an offset with reference to WGS-

84.

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988-10187-004 3.8

3.6 Unconventional sensor Cfg.

By pressing the “Unconventional sensor Cfg” button, the following window will appear:

Figure 3.6.1 Unconventional sensor Cfg.

With this function, it is possible to configure specific sensors (A) in addition to the
conventional sensors. For example, a GPS backup is useful when connected to ECDIS, a
wind sensor for conning wind information, an alarm monitoring system.

The menu above, as well as identifying the selected sensor, has the characteristic of
being able to set the serial port speed.

NOTE

This operation is possible only and exclusively if the various sensors are
directly connected to the RADAR.

A

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988-10187-004 3.9

3.7 Antenna Settings

By pressing the “Antenna Settings " button, the following window will appear:

Figure 3.7.1 Antenna Settings

Following the Help Line and the suggestion in the window, it should be easy to set the
correct values for antenna height and antenna Cartesian coordinates, which will be
important to draw the ship profile correctly, visible only at a low range scale.

The PPI will be centred on the cross representing the position of the Radar. The antenna
height is one of the parameters used to calculate the Anti Sea Clutter processing.
As a consequence of this insertion, a drawing of the ship's profile will appear at a low
scale in the centre of the PPI:

To configure a valid radar connection, the checkbox E should be activated and the correct
antenna selected from list A .
The PPR selection B is available only when communication with the transceiver is in
parallel mode (all radar signals connected separately).

A

B

C

D

E

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988-10187-004 3.10

3.7.1 Adjustment of Azimuth Type (PPR Selection)

Pressing the B button of fig. 3.7.1, page 3.9, a list will be open with all the possible
azimuth values.

The list below shows all the standard and some special configurations with the relevant
PPR:

NOTE

If the communication with the transceiver has already been established, if
the Heading Line pulse is being received and if it has been correctly set, it
is possible to read the PPR value measured by he system, on the label
next to the PPR selection (between parenthesis). This is the easier and
faster way to insert the correct PPR setting.

Antenna

Pedestal

Sensor Type

PPR

1XP

Proximity Switch

132

1XP

Encoder Kit

1024 to 4096

SU

Lettore + Antsig

128

SU

Encoder Kit

1024 to 4096

SRT 12/25 UP

Lettore + Antsig

128

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988-10187-004 3.11

3.7.2 Adjustment of the heading line

Pressing the C button of fig. 3.7.1. page 3.9, it is possible to set the Heading Line:
The Heading Line skew value can be set in two ways:

• Pressing the right or left arrow in order to turn the Radar picture clockwise or
counter clockwise with a precision of 1/10 of a degree, with the possibility to turn it
from -180° to +180°

• Placing the EBL on the angle where it is desired to place the HL and pressing the
"SET TO EBL" button, the picture will automatically turn, placing the angle where
the EBL was positioned on the Heading Line Marker.

Press the D button to select the correct Heading Line polarity, positive for a signal that is
zero with positive voltage as the active state, negative when the signal is bipolar (going
from negative to positive voltage) or active with a negative level.
Note: This function is only available when Alpha Extension board is installed.

WARNING

BUTTONS B AND D ARE AVAILABLE ONLY FOR THE RADAR VIDEO CHANNEL 1
AND 2.

CAUTION

IF THE CORRECT ANTENNA AND ANTENNA HEIGHT HAS NOT BEEN
SELECTED OR IF THE SEA TABLES WERE NOT CREATED, A DEFAULT
SETTING WILL BE USED. THE DEFAULT SETTING MAY, HOWEVER, NOT BE
THE OPTIMAL ONE FOR TARGET DETECTION IN THE SEA CLUTTER AND
TRACKING PERFORMANCE.

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988-10187-004 3.12

3.8 TXRX Settings

Pressing the button TXRX settings (G button of fig. 3.1.2, page 3.2), the window below will
appear. The TXRX buttons can be up to four, to which can be connected the 3rd and the
4th TXRXs. In the "TXRX n SETUP MENU" (where n is the number of the TXRX chosen) it
is possible to adjust the TXRX parameters such as video, heading line, azimuth type, etc.

Note: Some of these functions are protected by a password i.e. can only be accessed by
authorized personnel.

Figure 3.8.1 TXRX Settings Menu

NOTE

In case of connection with a MOSFET transceiver with an "RTM Control
P.C.B." on board instead of an "RTM Control B P.C.B." (TXRX software
version lower than 54), the buttons in position 12-15-16-17-19 will not be
activated. In case of connection with a non Simrad transceiver or with an
old transceiver type (non MOSFET), all the buttons above and the button
in position 5 will not be activated.

The password protected NMEA Protocol button (E) selects the protocol to use. All SRT
and SRT derived transceivers work with NMEA protocol.

The communication mode is working at a baud rate of 4800 bps. More TXRX information
is available from the Debug Display window (see Chapter 4), selecting the TXRX
communication messages.

B

E

F

D

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988-10187-004 3.13

3.8.1 Transceiver Communication Type

Pressing the A button of fig. 3.8.1, page 3.12, the following list will open:

The list permits the selection of the communication’s type used to control the transceiver.

Other Comm: For any transceiver that cannot be controlled by the console, but is still able
to generate the appropriate video, trigger and antenna synchronism signal.

Serial Comm: For the standard connection with RS232 serial line.

SXI n Comm: For video combined connections, all the signals needed are combined with
the video on only one coaxial cable; "n" is the console priority for that transceiver.

Higher numbers have higher master priority than lower ones.

CAUTION

PRIORITY NUMBERS ARE IMPORTANT AND SHOULD NOT BE MIXED
UP. IF THE SETUP HAS TO BE TRANSFERRED FROM CONSOLE TO
CONSOLE VIA A MEMORY STICK, CHECK THAT PRIORITY IS NOT
THE SAME IN ANY OF THE CONSOLES CONNECTED TO THE SAME
RADAR INPUT. TWO CONSOLES WITH SAME PRIORITY, TRYING TO
BE MASTER OF THE SAME TRANSCEIVER WILL SEND
CONFLICTING COMMANDS AND MAKE IT JUMP BY DIFFERENT
PRFS OR TUNING SETTINGS.

3.8.2 Transceiver Communication Type

Pressing the B button of fig. 3.8.1, page 3.12, (password protected), it is possible to
adjust amplitude and slope of the TXRX Pre-STC. The range scale is automatically set to

0.75 NM. Amplitude and slope can be adjusted using the up and down arrow. This
adjustment optimises the minimum visible distance and it can affect the auto-tuning
performance for TXRX not derived from SRT.

Connecting the probe of the oscilloscope to the pin STC of TB13 of the RTM Control B
PCB (the connector of the I.F. Amplifier, normally the blue wire), the PRESTC ramp will
be shown on the scope.

The Amplitude shall be adjusted to be about 4 - 4.2V.

The Slope shall be adjusted to be about 2 - 3 µs.

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988-10187-004 3.14

The PRESTC is not a video processing to be used continuously during the normal
operating, but it is a fixed STC curve stored in the TXRX to suppress enough main
bang and too close echoes that otherwise would be in saturation. This adjustment
is normally perfectly performed at the testing in the factory, and shall not be
touched again, and only very skilled radar experts shall be allowed to touch these
adjustments in case of very special situations.

The digital potentiometer values to measure the above described Amplitude and
Slope values are normally:

- Amplitude 58 - 60

- Slope 5 – 9

CAUTION

BAD ADJUSTMENT OF PRESTC WILL COMPROMISE ARPA GOOD WORKING
AND / OR AUTO TUNING FACILITY.

3.8.3 Performance Monitor Adjustment

Press the C button of fig. 3.8.1, page 3.12, to control the performance monitor. The range
scale is automatically set to 24 NM and the performance monitor activated. Set the
transceiver at maximum tuning using the Auto Tuning function or by adjusting the Manual
Tune Progress bar to have the best echoes performance on the screen.

The top arrow buttons can be used to adjust the opening of the Performance Monitor Ring
(now visible on the screen) and the bottom ones can be used to adjust the distance of the
above mentioned ring.

Referring to the above figure "OPEN" and "DISTANCE" labels indicate the actual values
of the digital potentiometers.

The Opening shall be adjusted to around 60 to 100 degrees.

The Distance (which correspond to the Power Level) shall be adjusted to a value of
around 180 in the label down on the left (P.L.).

NOTE

the performance monitor is a facility used to check the performance of the
transceiver, so it is very important that it is made one time at the
installation. If, for example, the Power Level is low and the distance is less
than 24 NM, it could indicate that the Performance Monitor is not correctly
adjusted, but the reason could also be that the performance of the TXRX
is low and the magnetron could be old or defective.

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988-10187-004 3.15

3.8.4 Tuning Adjustment

Pressing the D button of fig. 3.8.1. page 3.12, it is possible to adjust the Tuning. The
range scale is automatically set to 24 NM, the performance monitor activated, the tuning
control set to the middle position. The right placed label with "M.B." written indicates the
Main Bang value and the procedure for the adjustment is described in detail in the
transceiver technical manual.

There are 2 possibilities to adjust the tuning on Argus displays: Automatic or Manual.
Press "Auto Adjust" to run the procedure automatically. The M.B. label content will change
indicating the following possible steps of the adjusting:

• Init Off Decreases the Tune Offset potentiometer down to 0;

• Scan n Increases the potentiometer until it reaches the maximum (99);

• Set Off Decreases again the potentiometer to the optimal Tune Offset found

in the previous step;

• Adjust n Decreases the tune indication potentiometer down to 0 and increases
it until the main bang value (n) reaches 128;

• M.B. n Display the actual main band value.

3.8.5 Magnetron timer reset

When the magnetron is replaced and only when it is replaced, the Service Engineer
should reset the timers of the transceiver so that at the next service it will be possible to
check how many hours the new magnetron has been transmitting, and at which pulse and
PRF, and thereby see if it is really still new or needs to be changed.

The magnetron timers can be reset by pressing the "F" button of fig. 3.8.1, page 3.12, and
accepting the action, pressing "Yes" to the asked question "Are You Sure?".

The Argus system gives a System Warning if the magnetron is close to the expected
lifetime. A "Magnetron EOL" (End Of Life) will be displayed under the TXRX field in the
System Status Display Menu.

Everything described in this paragraph is valid only in case of RTM Control B PCB
on board of the transceiver (TXRX software version 54 or higher). If this is not the
case, when the magnetron is replaced, it is kindly requested to write down the value
of the Main TX timer (which is placed on the Transformer assy of the transceiver) on
a sticker and attach it on the chassis of the transceiver.

3.8.6 Digital potentiometers reset

This button (password protected) should be used when it is necessary to restore the
default presets of the transceiver when the service engineer is no longer able to return it to
a working condition.

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3.9 Video Trigger Adjustments

Pressing the H button (password protected) of fig. 3.1.2, page 3.2, it is possible to adjust
the radar video and trigger delay.

IMPORTANT

TO GAIN ACCESS TO THIS FUNCTION THE SYSTEM MUST BE MASTER (refer to the Argus Radar
System user manual 988-10185-004). THIS TYPE OF ADJUSTMENT MUST BE CARRIED OUT IN
PORT.

After entering the section “VIDEO AND TRIGGER SETTINGS” the following screen
display appears on the left side of the menu.

IMPORTANT

AFTER ENTERING THE SECTION “VIDEO AND TRIGGER SETTINGS” THE SCALE AT 0.25 NM
(operation useful only for setting the trigger delay) IS AUTOMATICALLY SET ON THE MAIN PPI
DISPLAY.

This menu is divided into the following areas:

Figure 3.9.1 Video and Trigger Setting

B I H E A C D G F

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3.9.1 Video Adjust Mode

Pressing the B button (password protected) of fig. 3.9.1, page 3.16, the system goes into
“VIDEO ADJUST MODE ON” (under normal conditions this function is set to OFF). When
carrying out this operation the TEST video is activated on the main PPI display; in other
words, a large ring is created and the following actions are automatically carried out:

• A long impulse is emitted.

• The gain is forced by 100%.

• The video palette is changed in order to highlight the saturated echoes with a red

colour (everything that is not saturated assumes a yellow colour).

To adjust the video the scale must be set at 0.75 NM or 1.5 NM (refer to the Argus user
manual 988-10185-004, paragraph “Range scale increase/decrease”). Using the arrows G
(Fig. 3.9.1, page 3.16) increase or decrease the value that appears in window F (Fig.

3.9.1, page 3.16).

The purpose of this operation is to eliminate the saturated echoes and therefore make the
various red zones disappear from the video screen.

• If red zones are seen on the screen, decrease the value in window F (Fig. 3.9.1,
page 3.16) to make them completely disappear (some limited red zones are
acceptable).

• If the screen is completely yellow, increase the value in window F (Fig. 3.9.1, page

3.16) to make the red zones appear and then decrease the value to remove as
many red zones as possible.

A datum that assists in understanding that the adjustment is correct is the value in window
A (Fig. 3.9.1, page 3.16). This value oscillates during adjustment and it can assume three
colourations:

• Yellow: when the value drops below 240 indicates that the value should be
increased, but more than 220 is anyway acceptable.

• Red: when the value exceeds 250 indicates that the value must be decreased.

• Green: when the value is between 240 and 250 indicates that the value is correct.

End the adjustment operation by pressing push button B (Fig. 3.9.1, page 3.16) into OFF
mode. Push button H (Fig. 3.9.1, page 3.16) permits the automatic adjustment of the
video.

IMPORTANT

ALWAYS PRESS THE PUSH BUTTON E “ACCEPT” TO SAVE AND MAKE EFFECTIVE THE
MODIFICATIONS CARRIED OUT.

3.9.2 Adopted communication configurations

A text appears in box I (Fig. 3.9.1, page 3.16). This text varies on the basis of the
communication hardware configurations adopted between the console and the transmitter.
Pay attention to what is shown, otherwise the adjustment operations could become
useless and bring about an incorrect visualisation of the radar video.

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3.9.3 Trigger Delay

Press the C button (password protected) of fig. 3.9.1, page 3.16 to adjust the Trigger
Delay. The Trigger delay is caused by the path length mismatch for the trigger and video
signal.

The video path delay is much longer because it's the result of the transmission through the
waveguide to the antenna and back.

The delay depends of the length and type of the cable/waveguide used in the installation.

The range scale is automatically set to 0.25 NM. Press the arrow buttons in order to
enlarge or squeeze the picture and adjust the delay between video and trigger from 0
meters to a maximum of 384 meters.

The delay adjustment is visible in real time on the PPI around the ship.

The illustration shows two different samples of incorrectly adjusted trigger delay:

• 1: The dock or pier is bowed towards the center, which means that the figure is too
high

• 2: The dock or pier is bowed away from the center, which means that the figure is
too low.

NOTE

For SRT transceivers it is also possible to change the delay to negative
numbers. In this case the trigger from the TXRX will be anticipated in time
in respect to the video. This negative setting is needed when trigger and
video are passing through long coaxial cables with different propagation
times, the video cable being the slowest one.
This usually happens for all installations with an SRT Adapter Box, as
buffer amplifier and cable lengths are more than 150 meters.

NOTE

On channel 1 and 2, two optional buttons C for Trigger and Video polarity
will be available.

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3.9.4 QV (Quantized Video) Threshold

WARNING

THIS VALUE MUST BE SET AT “AUTO” EXCEPT FOR THE VARIOUS CASES OUTLINED
BY THE MANUFACTURER.

Pressing the D button (password protected) of fig. 3.9.1, page 3.16, it is possible to set the
QV. The threshold is used by the automatic tracking to identify real radar echoes from
receiver noise. This value depends on the receiver noise from the transceiver band and
the video cable attenuation. This value can be set manually adjusting the noise level to
see some speckles in the 24 NM range scale.

This adjustment is really subjective, and the receiver gain changes with the selected pulse
length, with the weather, the humidity and so on, so the preferred solution is to activate
the Auto Threshold. With this selection the automatic tracking software measures the PFA
(Probability of False Alarm) and calculates the correct threshold for the optimum detection
performance.

3.10 Sector Blanking

Pressing the I button of fig. 3.1.2, page 3.2, the following window will appear:

Figure 3.10.1 Sector Blanking Settings

The radar offers two blanking sectors, which can be set individually. Transmission will be
off within the set sectors.

The sector blanking is visible on the PPI with a sector delimited by two green lines (which
will be red during the setting) and, if the gain value is high enough, the absence of receiver
noise will be clearly visible.

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To configure sector blanking, use up or down arrows to change the "Start Sector" and
the "End Sector" values. The graphic displayed on the PPI will change in real time, but
the command to the transceiver will be sent only after pressing the "Apply Sector" button.
Use "Discard" to discard temporary modifications to the sector blanking configuration.
The “on-off button next to the sector n label 1-2" shall be pressed to cancel the
current sector blanking.

NOTE

The settings of the Sector Blanking are stored directly in the TXRX and
not in the Argus Core Unit/display.

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3.11 System Configuration

Press the L button of fig. 3.1.2, page 3.2, and the following window will appear:

Figure 3.11.1 System Configuration

3.11.1 Display settings (Fig 3.11.1 -A)

The "Display settings" are the currently used settings. If the diagonal, the aspect ratio and
the resolution information are shown in green, it means that the settings used are the
same as detected directly by the monitor. Otherwise they will appear in red.

To modify the display settings, press the "Display Settings" button to enter the Display
Settings menu – see example next page.

A

C

E

D

F

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Current settings and detected settings are shown in this menu. You can choose to accept
the detected settings by clicking on the "Accept and set Detected Settings" button, or you
can manually change the display settings by selecting one of the “monitor selections”
available.

The Argus display video output (DVI and VGA) can support 6 different display resolutions:

Display Resolution

1280x1024

1366x768

1600x1200

1920x1080

1920x1200

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The table below shows which resolution is required for the different type monitors normally
connected to an Argus display:

Unit Type

Description

Aspect Ratio

Display Resolution

M5016 16” Simrad

16:9

1366x768

M5019

19” Simrad

16:9

1366x768

10CM-003

19" TFT Hatteland

5:4

1280x1024

10CM-004

19" TFT ISIC

5:4

1280x1024

10CM-005

23" TFT Hatteland

4:3

1600x1200

10CM-006 23" TFT ISIC

4:3

1600x1200

M5024

24” Simrad

16:9

1920x1080

10CM-008

26" TFT Hatteland

16:10

1920x1200

M5027

27” Simrad

16:9

1920x1080

To force the use of manual settings, click on the relative button “Force the use of Manual
Settings”, then confirm by clicking on “Yes” followed by “Accept”.

WARNING
Settings which are not automatically recognized are most probably not IMO approved
configurations. A warning: "NOT“APPROVED MODE” will appear in the System status
window.

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3.11.2 IP Address (Fig 3.11.1 -B)

The IP Addresses next to the “This Console” label are for the working console. The
“PROC A IP” column is the IP address of Processor A of Antares p.c.b.

The Proc A IP of This Console can be set by clicking on the IP address field.

The Proc B IP will automatically be set.

Figure 3.11.1-B

The following functions can be used only if This Console is connected via LAN with other
Argus consoles:

Scan Other Nets

The Argus console searches through 10.x.x.x, 192.168.0.x, 172.1.x.x and 212.4.5.x
subnetworks for other Argus units.
All the consoles available will be presented in the table.

Set All Sequentially

After a scan identification, the IP of the listed consoles in the table can be set in an
incremental order starting from own console IP number.
The assigned IP will be incremented +2 for every console found and a dialog window will
be shown on each one to accept the IP setting request.

Send Configuration

This function can be used to share the configuration of This Console with the other ones.
Please note that Transceiver, Antenna and Video/Trigger settings may have to be re­configured at each console.

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3.11.3 MAC Address (Fig 3.11.1 -C)

This is the Ethernet MAC address of the board (not settable). Part of the address is a field
assigned only to Simrad. Less significant bytes are different for any Antares PCB
manufactured.

3.11.4 TXRX Associated by Default (Fig 3.11.1 – D)

By pressing the relevant button, the following list with all the transceivers connected will be
displayed:

This is not the interswitch, this list selects the TXRX to use at the start-up of the system.
For example if the Port Argus Console is normally used with TXRX n 2, the selection
“TXRX2” shall be chosen in the left list, and if a blackout occurs or the system is restarted
or completely powered off and on again, the Console will automatically select the TXRX n
2 at the restart.

WARNING

IF THE SETUP HAS TO BE TRANSFERRED FROM CONSOLE TO CONSOLE VIA
A MEMORY STICK, CHECK THAT THE DEFAULT TRANSCEIVER IS NOT THE
SAME FOR ANY OF THE CONSOLES.

3.11.5 General info (Fig 3.11.1 – E)

This window shows information regarding the screen resolution, PPI pixel size and the
exact software version installed in the system.

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3.11.6 Additional Functions (Fig 3.11.1 – F)

Figure 3.11.6

In this configuration, it is possible to enable, disable or expand the ECDIS, Conning
Information and Twin Scan functions.

- ECDIS interface ( Figure 3.11.6-A)

Selecting/deselecting this function enables/disables transmitting the Overlay video to a
connected ECDIS. Clicking on the ”More” button expands the configuration window, and it
is possible to see the console for the radar that is enabled at that moment. For more
information, refer to the Technical User Manual.

Figure 3.11.6-A

- Simplified Conning Information Enable (Figure 3.11.6-B)

Selecting this function enables the Conning Tasks on the System Data Area Section (if the
wide screen configuration is being used).

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- Twin Scan Enable (Figure 3.11.6-C)

Selecting this function enables/disables the Video Combination Mode (if the wide screen
configuration is being used) for the video configurations in the TXRX Interswitch menu.

Enabling/disabling the Twin PPI Mode function, which is used to select different radar
transceivers for each PPI.

Figure 3.11.6-C

3.12 Restart button

Press this button (Fig 3.1.2 – M, page 3.2), to reboot the Argus system. After pressing the
button, another red window will appear asking for a confirmation of the requested action.

Figure 3.12.1

The following actions are applied only after a reboot of the system:

• Display Resolution change

• System Program Version change

• IP Address settings

• Moving the Main Menu column from left to right or from right to left

• Adding or removing the percentage value from the Video Processing Progress Bars

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3.13 USB Menu (Fig 3.1.2-N)

By pressing the button, the system will try to mount any memory stick inserted in the USB
port, and the following window will be displayed:

Figure 3.13.1 USB Menu

If no USB memory is connected to the keyboard’s USB socket or in case of incompatibility
of the USB memory with Linux OS, the above window will indicate: Fail mounting module!

In this case the USB memory installed cannot be used, due to an incompatibility between
it and the system.

Figure 3.13.2 USB Storage

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If the USB memory is used with the ARGUS for the first time, the following window will be
displayed:

Figure 3.13.3 USB Storage

To enable the Memory Stick, a directory file tree is needed in the USB memory.
A directory named “ARGUS” shall be created in the root of the USB memory and it should
contain other directories named “logs”, “maps”, “screenshots”, “setup”, and “update”.

If this file tree is not present, a warning will appear, and the only action possible will be
“Format Module”. This will not erase any files in USB Module, but just create the required
directory tree.

By pressing the “Format Module” button, the window will return to the previous, and it will
be possible to access the functions.

The USB flash disk will be mounted in /mnt/usb and the USB STORAGE Menu will appear
as shown by the following picture.
The figure shows the possibility to store maps, backup setup files, system logs and
screenshot pictures on the flash disk and to get maps, backup setup files and to upgrade
the Argus software from the flash disk.

This is a list of the sub-directories that can be found under the Argus directory.

• Maps : All files *.map.

• Setup: Sub-directories named NAME_XXXXX_cfg, where NAME given when it was

stored (usually own ship name) and XXXXX is the serial number of the ANTARES
p.c.b.

• Update: All console update packages.

• Screenshots: Screenshots of the display picture in PNG format. Named usually as

G/V-SERNUM-YEARMONTHDAY-HOURMINUTES.png, where G or V means a

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complete screenshot with all the graphic included and the second one with only the
PPI video, SERNUM is the serial number of the Antares PCB and
YEARMONTHDAY-HOURMINUTES the date and time in UTC format (from EPFS
sensor) of the picture.

3.13.1 Save Screenshots

Figure 3.13.4 Save screenshots

The Screen Capture function allows you to save the views of the radar in order to capture
the situation at that particular moment.

- Pressing the “Video radar Only” button, it is possible to save only the radar image
at that specific moment.

- Pressing the “Entire Screen” button, it is possible to save the whole image on the
display at that specific moment.

- Pressing the “Cancel” button will take you back to the main menu.

3.13.2 Saving and reloading maps

In this mode, it is possible to save or transfer maps from the Argus system to USB pen
drive and vice versa.

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3.13.3 File configuration

In this mode, it is possible to save or transfer system configuration files from Argus to a
USB pen drive and vice versa.

3.13.4 System log files

In this mode, it is possible to save or transfer system configuration log files from Argus to
a USB pen drive. This is to allow Simrad to have information about the system present on
the Argus system. No reverse transfer of data is permitted.

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3.14 Stored parameters

All configuration parameters are stored in files that can be stored and retrieved from the
memory stick. These parameters are essential for the system, they should be saved in a
backup storage or the System Installation Checklist should be filled. These parameters

should be restored when the Antares Assy is replaced.

Parameter

Stored On

Antares PCB

TXRX

Gyro configuration ●

Log configuration ●

Own ship dimensions

●

Ship Tonnage / ROT

●

Conning position coordinates

●

EPFS antenna position coordinates

●

Radar antenna position and type

●

Sea clutter attenuation shapes

●

Heading Line Alignment

●

Trigger/Video delay adjustment

●

PRESTC Amplitude and Slope

●

PM Opening and Distance

●

Tuning Offset and Indication

●

TXRX communication type and protocol

●

Startup TXRX selection adjustment

●

Display Resolution

●

Function keys configuration

●

Time configuration (UTC/Local Time

●

Miscellaneous personal settings

●

Tasks (Additional PPI, ROT, Depth,

Heading etc…)

●

Twin scan data(combination Types)

●