477(XII) Performance standards for radar equipment (MSC.64(67))

THE ASSEMBLY,

RECALLING Article 16(i) of the Convention on the Inter-Governmental Maritime Consultative Organization,

BEARING IN MIND the provisions of Regulation 12, Chapter V, of the International Convention for the Safety of Life at Sea, 1974, and the proposed amendments to that regulation,

RECALLING ALSO resolution A.222(VII) by which it adopted performance standards
for radar equipment,

RECOGNIZING the desirability of making such performance standards compatible with the Performance Standards for Automatic Radar Plotting Aids(ARPA) (resolution A. 422(XI)) and with resolution A.423(XI) on radar beacons and transponders,

HAVING CONSIDERED the recommendation made by the Maritime Safety Committee
at its forty-second session,

1. ADOPTS the Recommendation on Performance Standards for Radar Equipment set out in  the Annex to the present resolution;
2. RECOMMENDS Member Governments to ensure that:

(a) Radar equipment installed on or after 1 September 1984 conforms to performance standards not inferior to those specified in the Annex to the present resolution;

(b) Radar equipment installed before 1 September 1984 conforms at least to the performance standards set out in resolution A.222(VII).

Ingangsdatum: 01-09-1984

THE ASSEMBLY,

RECALLING Article 16(i) of the Convention on the Inter-Governmental Maritime Consultative Organization,

BEARING IN MIND the provisions of Regulation 12, Chapter V, of the International Convention for the Safety of Life at Sea, 1974, and the proposed amendments to that regulation,

RECALLING ALSO resolution A.222(VII) by which it adopted performance standards
for radar equipment,

RECOGNIZING the desirability of making such performance standards compatible with the Performance Standards for Automatic Radar Plotting Aids(ARPA) (resolution A. 422(XI)) and with resolution A.423(XI) on radar beacons and transponders,

HAVING CONSIDERED the recommendation made by the Maritime Safety Committee
at its forty-second session,

1. ADOPTS the Recommendation on Performance Standards for Radar Equipment set out in  the Annex to the present resolution;
2. RECOMMENDS Member Governments to ensure that:

(a) Radar equipment installed on or after 1 September 1984 conforms to performance standards not inferior to those specified in the Annex to the present resolution;

(b) Radar equipment installed before 1 September 1984 conforms at least to the performance standards set out in resolution A.222(VII).

Annex Recommendation on performance standards for radar equipment

Ingangsdatum: 01-09-1984

1 Application

1.1 This Recommendation applies to all ships' radar equipment installed on or after 1 September 1984 in compliance with Regulation 12, Chapter V of the International Convention for the Safety of Life at Sea, 1974, as amended.

1.2 Radar equipment installed before 1 September 1984 should comply at least with the performance standards recommended in resolution A.222(VII).

Ingangsdatum: 01-09-1984

Geldig tot en met: 31-12-1998

1.1 This Recommendation applies to all ships' radar equipment installed on or after 1 September 1984 in compliance with Regulation 12, Chapter V of the International Convention for the Safety of Life at Sea, 1974, as amended.

1.2 Radar equipment installed before 1 September 1984 should comply at least with the performance standards recommended in resolution A.222(VII).

1 Introduction

[Niet geldig (geldigheid vanaf 1999-01-01)]

2 General

The radar equipment should provide an indication, in relation to the ship, of the position of other surface craft and obstructions and of buoys, shorelines and navigational marks in a manner which will assist in navigation and in avoiding collision.

Ingangsdatum: 01-09-1984

Geldig tot en met: 31-12-1998

The radar equipment should provide an indication, in relation to the ship, of the position of other surface craft and obstructions and of buoys, shorelines and navigational marks in a manner which will assist in navigation and in avoiding collision.

3 All radar installations

All radar installations should comply with the following minimum requirements.

3.1 Range performance
The operational requirement under normal propagation conditions, when the radar antenna is mounted at a height of 15 metres above sea level, is that the equipment should in the absence of clutter give a clear indication of:

.1 Coastlines

At 20 nautical miles when the ground rises to 60 metres
At 7 nautical miles when the ground rises to 6 metres.
.2 Surface objects

At 7 nautical miles a ship of 5,000 tons gross tonnage, whatever her aspect.
At 3 nautical miles a small vessel of 10 metres in length.
At 2 nautical miles an object such as a navigational buoy having an effective echoing area of approximately 10 square metres

3.2 Minimum range
The surface objects specified in 3.1.2 should be clearly displayed from a minimum range of 50 metres up to a range of one nautical mile, without changing the setting of controls other than the range selector.

3.3 Display
3.3.1 The equipment should without external magnification provide a relative plan display in the head-up unstabilized mode with an effective diameter of not less than:

1. 180 millimetres* on ships of 500 tons gross tonnage and more but less than 1,600 tons gross tonnage;
2. 250 millimetres* on ships of 1,600 tons gross tonnage and more but less than 10,000 tons gross tonnage;
3. 340 millimetres* in the case of one display and 250 millimetres in the case of the other on ships of 10,000 tons gross tonnage and upwards.

3.3.2 The equipment should provide one of the two following sets of range scales of display:

1. 1.5, 3, 6, 12 and 24 nautical miles and one range scale of not less than 0.5 and not greater than 0.8 nautical miles; or
2. 1, 2, 4, 8, 16 and 32 nautical miles.

3.3.3 Additional range scales may be provided.

3.3.4 The range scale displayed and the distance between range rings should be clearly indicated at all times.

3.4 Range measurement
3.4.1 Fixed electronic range rings should be provided for range measurements as follows:

1. where range scales are provided in accordance with 3.3.2.1, on the range scale of between 0.5 and 0.8 nautical miles at least two range rings should be provided and on each of the other range scales six range rings should be provided, or
2. where range scales are provided in accordance with 3.3.2.2, four range rings should be provided on each of the range scales.

3.4.2 A variable electronic range marker should be provided with a numeric readout of range.

3.4.3 The fixed range rings and the variable range marker should enable the range of an object to be measured with an error not exceeding 1.5 per cent of the maximum range of the scale in use, or 70 metres, whichever is the greater.

3.4.4 It should be possible to vary the brilliance of the fixed range rings and the variable range marker and to remove them completely from the display.

3.5 Heading indicator
3.5.1 The heading of the ship should be indicated by a line on the display with a maximum error not greater than plus or minus 1 degree. The thickness of the displayed heading line should not be greater than 0.5 degrees.

3.5.2 Provision should be made to switch off the heading indicator by a device which cannot be left in the "heading marker off" position.

3.6 Bearing measurement
3.6.1 Provision should be made to obtain quickly the bearing of any object whose echo appears on the display.

3.6.2 The means provided for obtaining bearings should enable the bearing of a target whose echo appears at the edge of the display to be measured with an accuracy of plus or minus 1 degree or better.

3.7 Discrimination
3.7.1 The equipment should be capable of displaying as separate indications on a range scale of 2 nautical miles or less, two small similar targets at a range of between 50 per cent and 100 per cent of the range scale in use, and on the same azimuth, separated by not more than 50 metres in range.

3.7.2 The equipment should be capable of displaying as separate indications two small similar targets both situated at the same range between 50 per cent and 100 per cent of the 1.5 or 2 mile range scales, and separated by not more than 2.5 degrees in azimuth.

3.8 Roll or pitch

The performance of the equipment should be such that when the ship is rolling or pitching up to plus or minus 10 degrees the range performance requirements of 3.1 and 3.2 continue to be met.

3.9 Scan
The scan should be clockwise, continuous and automatic through 360 degrees of azimuth. The scan rate should be not less than 12 revolutions per minute. The equipment should operate satisfactorily in relative wind speeds of up to 100 knots.

3.10 Azimuth stabilization
3.10.1 Means should be provided to enable the display to be stabilized in azimuth by a transmitting compass. The equipment should be provided with a compass input to enable it to be stabilized in azimuth. The accuracy of alignment with the compass transmission should be within 0.5 degrees with a compass rotation rate of 2 revolutions per minute.

3.10.2 The equipment should operate satisfactorily in the unstabilized mode when the compass control is inoperative.

3.11 Performance check
Means should be available, while the equipment is used operationally, to determine readily a significant drop in performance relative to a calibration standard established at the time of installation, and to check that the equipment is correctly tuned in the absence of targets.

3.12 Anti-clutter devices
Suitable means should be provided for the suppression of unwanted echoes from sea clutter, rain and other forms of precipitation, clouds and sandstorms. It should be possible to adjust manually and continuously the anti-clutter controls. Anti-clutter controls should be inoperative in the fully anti-clockwise positions. In addition, automatic anti-clutter controls may be provided; however, they must be capable of being switched off.

3.13 Operation
3.13.1 The equipment should be capable of being switched on and operated from the display position.

3.13.2 Operational controls should be accessible and easy to identify and use. Where symbols are used they should comply with the recommendations of the Organization on symbols for controls on marine navigational radar equipment.

3.13.3 After switching on from cold the equipment should become fully operational within 4 minutes.

3.13.4 A standby condition should be provided from which the equipment can be brought to an operational condition within 15 seconds.

3.14 Interference
After installation and adjustment on board, the bearing accuracy as prescribed in this Recommendation should be maintained without further adjustment irrespective of the movement of the ship in the earth's magnetic field.

3.15 Sea or ground stabilization (true motion display)
3.15.1 Where sea or ground stabilization is provided the accuracy and discrimination of the display should be at least equivalent to that required by this Recommendation.

3.15.2 The motion of the trace origin should not, except under manual override conditions, continue to a point beyond 75 per cent of the radius of the display. Automatic resetting may be provided.

3.16 Antenna system
The antenna system should be installed in such a manner that the design efficiency of the radar system is not substantially impaired.

3.17 Operation with radar beacons
3.17.1 All radars operating in the 3 centimetre band should be capable of operating in a horizontally polarized mode.

3.17.2 It should be possible to switch off those signal processing facilities which might prevent a radar beacon from being shown on the radar display.

---

^* Display diameters of 180, 250 and 340 milimetres correspond respectively to 9, 12 and 16 inch cathode ray tubes.

Ingangsdatum: 01-09-1984

Geldig tot en met: 31-12-1998

All radar installations should comply with the following minimum requirements.

3.1 Range performance
The operational requirement under normal propagation conditions, when the radar antenna is mounted at a height of 15 metres above sea level, is that the equipment should in the absence of clutter give a clear indication of:

.1 Coastlines

At 20 nautical miles when the ground rises to 60 metres
At 7 nautical miles when the ground rises to 6 metres.
.2 Surface objects

At 7 nautical miles a ship of 5,000 tons gross tonnage, whatever her aspect.
At 3 nautical miles a small vessel of 10 metres in length.
At 2 nautical miles an object such as a navigational buoy having an effective echoing area of approximately 10 square metres

3.2 Minimum range
The surface objects specified in 3.1.2 should be clearly displayed from a minimum range of 50 metres up to a range of one nautical mile, without changing the setting of controls other than the range selector.

3.3 Display
3.3.1 The equipment should without external magnification provide a relative plan display in the head-up unstabilized mode with an effective diameter of not less than:

1. 180 millimetres* on ships of 500 tons gross tonnage and more but less than 1,600 tons gross tonnage;
2. 250 millimetres* on ships of 1,600 tons gross tonnage and more but less than 10,000 tons gross tonnage;
3. 340 millimetres* in the case of one display and 250 millimetres in the case of the other on ships of 10,000 tons gross tonnage and upwards.

3.3.2 The equipment should provide one of the two following sets of range scales of display:

1. 1.5, 3, 6, 12 and 24 nautical miles and one range scale of not less than 0.5 and not greater than 0.8 nautical miles; or
2. 1, 2, 4, 8, 16 and 32 nautical miles.

3.3.3 Additional range scales may be provided.

3.3.4 The range scale displayed and the distance between range rings should be clearly indicated at all times.

3.4 Range measurement
3.4.1 Fixed electronic range rings should be provided for range measurements as follows:

1. where range scales are provided in accordance with 3.3.2.1, on the range scale of between 0.5 and 0.8 nautical miles at least two range rings should be provided and on each of the other range scales six range rings should be provided, or
2. where range scales are provided in accordance with 3.3.2.2, four range rings should be provided on each of the range scales.

3.4.2 A variable electronic range marker should be provided with a numeric readout of range.

3.4.3 The fixed range rings and the variable range marker should enable the range of an object to be measured with an error not exceeding 1.5 per cent of the maximum range of the scale in use, or 70 metres, whichever is the greater.

3.4.4 It should be possible to vary the brilliance of the fixed range rings and the variable range marker and to remove them completely from the display.

3.5 Heading indicator
3.5.1 The heading of the ship should be indicated by a line on the display with a maximum error not greater than plus or minus 1 degree. The thickness of the displayed heading line should not be greater than 0.5 degrees.

3.5.2 Provision should be made to switch off the heading indicator by a device which cannot be left in the "heading marker off" position.

3.6 Bearing measurement
3.6.1 Provision should be made to obtain quickly the bearing of any object whose echo appears on the display.

3.6.2 The means provided for obtaining bearings should enable the bearing of a target whose echo appears at the edge of the display to be measured with an accuracy of plus or minus 1 degree or better.

3.7 Discrimination
3.7.1 The equipment should be capable of displaying as separate indications on a range scale of 2 nautical miles or less, two small similar targets at a range of between 50 per cent and 100 per cent of the range scale in use, and on the same azimuth, separated by not more than 50 metres in range.

3.7.2 The equipment should be capable of displaying as separate indications two small similar targets both situated at the same range between 50 per cent and 100 per cent of the 1.5 or 2 mile range scales, and separated by not more than 2.5 degrees in azimuth.

3.8 Roll or pitch

The performance of the equipment should be such that when the ship is rolling or pitching up to plus or minus 10 degrees the range performance requirements of 3.1 and 3.2 continue to be met.

3.9 Scan
The scan should be clockwise, continuous and automatic through 360 degrees of azimuth. The scan rate should be not less than 12 revolutions per minute. The equipment should operate satisfactorily in relative wind speeds of up to 100 knots.

3.10 Azimuth stabilization
3.10.1 Means should be provided to enable the display to be stabilized in azimuth by a transmitting compass. The equipment should be provided with a compass input to enable it to be stabilized in azimuth. The accuracy of alignment with the compass transmission should be within 0.5 degrees with a compass rotation rate of 2 revolutions per minute.

3.10.2 The equipment should operate satisfactorily in the unstabilized mode when the compass control is inoperative.

3.11 Performance check
Means should be available, while the equipment is used operationally, to determine readily a significant drop in performance relative to a calibration standard established at the time of installation, and to check that the equipment is correctly tuned in the absence of targets.

3.12 Anti-clutter devices
Suitable means should be provided for the suppression of unwanted echoes from sea clutter, rain and other forms of precipitation, clouds and sandstorms. It should be possible to adjust manually and continuously the anti-clutter controls. Anti-clutter controls should be inoperative in the fully anti-clockwise positions. In addition, automatic anti-clutter controls may be provided; however, they must be capable of being switched off.

3.13 Operation
3.13.1 The equipment should be capable of being switched on and operated from the display position.

3.13.2 Operational controls should be accessible and easy to identify and use. Where symbols are used they should comply with the recommendations of the Organization on symbols for controls on marine navigational radar equipment.

3.13.3 After switching on from cold the equipment should become fully operational within 4 minutes.

3.13.4 A standby condition should be provided from which the equipment can be brought to an operational condition within 15 seconds.

3.14 Interference
After installation and adjustment on board, the bearing accuracy as prescribed in this Recommendation should be maintained without further adjustment irrespective of the movement of the ship in the earth's magnetic field.

3.15 Sea or ground stabilization (true motion display)
3.15.1 Where sea or ground stabilization is provided the accuracy and discrimination of the display should be at least equivalent to that required by this Recommendation.

3.15.2 The motion of the trace origin should not, except under manual override conditions, continue to a point beyond 75 per cent of the radius of the display. Automatic resetting may be provided.

3.16 Antenna system
The antenna system should be installed in such a manner that the design efficiency of the radar system is not substantially impaired.

3.17 Operation with radar beacons
3.17.1 All radars operating in the 3 centimetre band should be capable of operating in a horizontally polarized mode.

3.17.2 It should be possible to switch off those signal processing facilities which might prevent a radar beacon from being shown on the radar display.

---

^* Display diameters of 180, 250 and 340 milimetres correspond respectively to 9, 12 and 16 inch cathode ray tubes.

3 Radar

3.1 Range performance
The operational requirement under normal propagation conditions, when the radar antenna is mounted at a height of 15 m above sea level, is that the equipment should in the absence of clutter give a clear indication of:

.1 Coastlines

At 20 nautical miles when the ground rises to 60m.
At 7 nautical miles when the ground rises to 6m..2 Surface objects

At 7 nautical miles a ship of 5,000 gross tonnage, whatever her aspect.
At 3 nautical miles a small vessel of 10 m in length.
At 2 nautical miles an object such as a navigational buoy having an effective echoing area of approximately 10m².

3.2 Minimum range
The surface object specified in 3.1.2 should be clearly displayed from a minimum horizontal range of 50 m from the antenna position up to a range or 1 nautical mile, without changing the setting of controls other than the range selector.

3.3 Display
3.3.1 The equipment should provide, without external magnification, a daylight display with a minimum effective diameter with the bearing scale of not less than:

1. 180 mm on ships of 150* gross tonnage and more but less than 1,000* gross tonnage;
2. 250 mm on ships of 1,000* gross tonnage and more but less than 10,000* gross tonnage;
   and
3. 340 mm on ships of 10,000* gross tonnage and upwards.

3.3.2 The equipment should provide the following set of range scale of display: 0.25, 0.5, 0.75, 1.5, 3, 6, 12 and 24 nautical miles.

3.3.4 The range scale displayed and the distance between range ring should be clearly indicated at all times.

3.3.5 Within the effective display radar video area, the display should only contain information which pertains the use of the radar display for navigation collision avoidance and which gas to be displayed there because of its association with a target (e.q. target identifiers, vectors) or because of some other direct relationship with the radar display.

3.3.6 The origin of the range scale (radar video) should start at own ship, be linear and should not be delayed.

3.3.7 Multi-colour displays are permitted but the following requirements should be met:

1. target echoes should be displayed by means of the same basic colours and the echo strength should not be displayed indifferent colours; and
2. additional information may be shown in different colours.

3.3.8 The radar picture and information should be readable under all ambient light conditions. If a light shield is necessary to facilitate operation of the display in high ambient light levels, then means should be provided for its ready attachment and removal.

3.3.9 Selected parts of the System Electronic Navigation Chart (SENC) information may be displayed in such a way that the radar information is not masked, obscured or degraded. If SENC information is made available for a radar display it should at least include coastlines, own ship's safety contour, dangers to navigation and fixed and floating aids to navigation. The mariner should be able to select those parts of the SENC, which can be made available and the mariner requires to be displayed.

3.3.10 For the superimposition of selected parts of the SENC:

1. Reference management
   Reference management is required to ensure that the information displayed is correlated and in the same reference and co-ordinate system;
2. Display Area
   the whole effective display area should contain the available radar and SENC information;
3. Matching and adjustment
   in case of any deviations between the chart image and the radar image through detectable causes, manual adjustment should be possible. Any manual adjustment should be clearly indicated as long as it is activated. Resetting should be possible in a simple manner;
4. priority in the display
   the display of radar information should have priority;
5. Stability
   The equipment should be capable of appropriately stabilizing the radar image, ARPA vectors and SENC information. The operating mode should be clearly indicated; and
6. Independence of Radar/ARPA and SENC
   6.1 the SENC information should not have an adverse effect on the radar picture;
   6.2 Radar/ARPA information and SENC information should be clearly recognizable as such; and
   6.3 in the case of a malfunction of one component, the function of the other component should not be affected.

3.3.11 The frequency band in use should be indicated to the operator.

3.4 Range measurement
3.4.1 Electronic fixed range rings should be provided for range measurements as follows:

1. on the range scale 0.25, 0.5, 0.75 nautical miles at least two and not more than six range rings should be provided, on each of the other mandatory range scales six range rings should be provided; and
2. where off-centred facilities have been provided, additional range rings should be provided at the same range intervals.

3.4.2 An electronic variable range marker in the form of a ring should be provided with a numeric readout of range. This readout should not display any other data. For ranges of less than 1 nautical mile, there should be only one zero before the decimal point. Additional variable range markers may be provided.

3.4.3. The fixed range rings and the variable range markers should enable the range of an object to be measured with an error not exceeding 1% of the maximum range of the scale in use, or 30m, whichever is the greater.

3.4.4 The accuracy should be maintained when the display is off-centred.

3.4.5 The thickness of the fixed range rings should not be greater than the maximum permissible.
3.4.6 On all range scales, it should be possible to set the variable maker with the required precision within 5 s in all cases. A range that is set by the user should not change automatically when the range scale is changed.

3.5 Heading indication
3.5.1 The heading of the ship should be indicated by a continuous line on the display with a maximum error of not greater than 1°. The thickness of the displayed heading line should not be greater than 0.5° measured at maximum range at the edge of the radar display. The heading line should extend from the trace origin to the edge of the display.

3.5.2 Provision should be made to switch off the heading indicator by a device which cannot be left in the "heading line off" position.

3.5.3 A heading marker should be displayed on the bearing scale.

3.6 Bearing measurement
3.6.1 An Electronic Bearing Line, (EBL), should be provided with a numeric readout of bearing to obtain with 5s the bearing of any object whose echo appears on the display.

3.6.2 The EBL should enable the bearing go a target whose echo appears at the edge of the display to the display to be measured with m maximum error of not greater than ±1°.

3.6.3 The EBL should be displayed on the screen in such a way that it is clearly distinguishable from the heading indicator.

3.6.4 It should be possible to vary the brilliance of the EBL. This variation may be separate or combined with the intensity of other markers. IT should be possible to remove the EBL completely from the screen.

3.6.5 The rotation of the EBL should be possible in both directions continuously or in steps of not more than 0.2°.

3.6.6 The numeric readout of the bearing of the EBL should be displayed with at least 4 digits, including one after the decimal point. The EBL readout should not be used to display any other data. There should be a positive identification of whether the bearing indicated is a relative bearing or a true bearing.

3.6.7 A bearing scale around the edge of the display should be provided. Linear or non-linear bearing scale may be provided.

3.6.8 The bearing scale should have division marks for at least each 5°, with the 5° and 10° divisions clearly distinguishable from each other. Numbers should clearly identify at least each 30° division.

3.6.9 It should be possible to measure the bearing relative to the heading line and relative north.

3.6.11 It should be possible to move the position of the EBL origin away from the own ship to any desired point on the effective display area. By a fast simple operation it should be possible to move the EBL origin back to own ship's position on the screen. On the EBL, it should be possible to display a variable range marker.

3.7 Discrimination
3.7.1 Range
The equipment should be capable of displaying as separate indications on a range scale of 1.5 nautical miles, two small similar targets at range of between 50% and 100% of the range scale, and on the same bearing, separated by not more than 40 m in range.

3.7.2 Bearing
The equipment should be capable of displaying as separate indications two small similar targets both situated at the same range between 50% and 100% of the 1.5 nautical mile range scale, and separated by not more than 2.5° in bearing

3.8 Roll or pitch
The performance of the equipment should be such that when the ship is rolling or pitching up to ±10°. The range performance requirements of 3.1 and 3.2 continue to be met.

3.9 Antenna Scan
The scan should be clockwise, continuous and automatic through 360°of azimuth. The antenna rotation rate should be not less than 20 revolutions per minute. The equipment should start and operate satisfactorily in relative wind speeds of up to 100knots. Alternative methods of scanning are permitted provided that the performance is not inferior.

3.10 Azimuth stabilization
3.10.1 Means should be provided to enable the display to be stabilized in azimuth by a gyro-compass, or its equivalent in performance. The accuracy of alignment with the compass transmission should be within 0.5° with a compass rotation rate of 2 revolutions per minute.

3.10.2 The equipment should operate satisfactorily in the head-up unstabilized mode when the azimuth stabilization is inoperative.

3.10.3 Change over from one display mode to the other should be possible within 5 s and achieve the required bearing accuracy.

3.11 Performance monitoring
Means should be available, while the equipment is used operationally, to determine readily a significant drop in system performance relative to a calibration standard established at the time of installation. Means should be provided to check that the equipment is correctly tuned in the absence of targets.

3.12 Anti-clutter devices
3.12.1 Suitable means should be provided for the suppression of unwanted echoes from sea clutter, rain and other forms of precipitation, clouds, sandstorms and from other radars. It should be possible to adjust manually and continuously the anti-clutter controls. In addition, automatic anti-clutter controls may be provided; however, they should be capable of being switched off.

3.12.2 The operational requirement, when the radar antenna is mounted at a height of 15 m above sea level. is that the equipment should, even in the presence of sea clutter, give a clear indication of a standard reflector up to 3.5 nautical miles.

3.13 Operation
3.13.1 Availability
After switching on from cold the equipment should become fully operational within 4 min. A stand-by condition should be provided from which the equipment cal be brought to an operational condition within 15 s.

3.13.2 Controls
Operational controls should be accessible and easy to identify and use. Controls should be identified and easy to operate.
The equipment should be capable of being switched on and off and operated from the master display position.
It should be possible to vary the brilliance of the fixed range rings and the variable range markers and electronic bearing lines and to remove them independently and completely from the display.

3.14 Operation with radar beacons and SARTS
3.14.1 Radar should be able to detect and display signals from radar beacons and 9 GHz radar should also be able to detect and display signals from Search and Rescue Transponder (SARTs)

3.14.2 All radars operating in the 9GHz band should be capable of operation in a horizontally polarized mode.

3.14.3 It should be possible to switch off those signal processing facilities which might prevent a radar beacon of SART from being shown on the radar display.

3.15 Display modes
3.15.1 The equipment should be capable of operation in relative and true motion.

3.15.2 The radar origin should be capable of being off-set to at least 50% and not more than 75% of the radius of the display.

3.15.3 The radar should be capable of sea and ground stabilisation. With sea of ground stabilisation the accuracy and discrimination of the display should be at least equivalent to that required by this Performance Standard.

3.15.4 Speed and Distance Measuring Equipment (SDME) Providing the ship's speed through the water to the radar should be capable of providing the speed in the fore and aft direction.

3.15.5 The ground stabilized input should be two-dimensional. It may be provided from the SDME, from an electronic position-fixing system or from radar tracked stationary targets. The speed accuracy should be in accordance with the requirements of resolution A.824(19).

3.15.6 The type of input and stabilisation in use should be displayed.

3.15.7 It should also be possible to input the ship's speed manually from 0 (zero) knots to 30 knots in steps of not more than 0.2 knots.

3.15.8 Provision should be made for manual input of set and drift.

3.16 Interference from external magnetic fields
After installation and adjustment on board, the bearing accuracy as prescribed in this performance Standard should be maintain without further adjustment irrespective of the movement of the ship in the earth's magnetic field.

3.17 Radar installation
The radar installation, including the antenna, should be in such a manner that the performance of the radar system is not substantially impaired. Guidance on installation should be given in manufacturer documentation.

3.18 Failure Warnings and Status
If there is any detectable reason why the information presented to the operator is invalid, adequate and clear warning should given to the operator.

3.1 Range performance

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.10 Azimuth stabilization

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.11 Performance monitoring

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.12 Anti-clutter devices

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.13 Operation

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.14 Operation with radar beacons ans SARTS

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.15 Display modes

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.16 Interference form external magnetic fields

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.17 Radar installation

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.18 Failure Warning and Status

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.2 Minimum range

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.3 Display

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.4 Range measurement

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.5 Heading indication

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.6 Bearing measurement

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.7 Discrimination

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.8 Roll or pitch

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.9 Antenna scan

[Niet geldig (geldigheid vanaf 1999-01-01)]

4 Multiple radar installations

4.1 Where two radars are required to be carried they should be so installed that each radar can be operated individually and both can be operated simultaneously without being dependent upon one another. When an emergency source of electrical power is provided in accordance with the appropriate requirements of Chapter II-1 of the 1974 SOLAS Convention, both radars should be capable of being operated from this source.

4.2 Where two radars are fitted, interswitching facilities may be provided to improve the flexibility and availability of the overall radar installation. They should be so installed that failure of either radar would not cause the supply of electrical energy to the other radar to be interrupted or adversely affected.

Ingangsdatum: 01-09-1984

Geldig tot en met: 31-12-1998

4.1 Where two radars are required to be carried they should be so installed that each radar can be operated individually and both can be operated simultaneously without being dependent upon one another. When an emergency source of electrical power is provided in accordance with the appropriate requirements of Chapter II-1 of the 1974 SOLAS Convention, both radars should be capable of being operated from this source.

4.2 Where two radars are fitted, interswitching facilities may be provided to improve the flexibility and availability of the overall radar installation. They should be so installed that failure of either radar would not cause the supply of electrical energy to the other radar to be interrupted or adversely affected.

5 Interface

[Niet geldig (geldigheid vanaf 1999-01-01)]

6 Navigational information

[Niet geldig (geldigheid vanaf 1999-01-01)]

7 Plotting

[Niet geldig (geldigheid vanaf 1999-01-01)]

8 Ergonomics

[Niet geldig (geldigheid vanaf 1999-01-01)]

Appendix 1 Performance standards for "Auto Tracking"

 

1 Introduction

[Niet geldig (geldigheid vanaf 1999-01-01)]

2 Difinitions

[Niet geldig (geldigheid vanaf 1999-01-01)]

3 Performance standards

 

3.1 Detection

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.10 Sea and ground stabilisation

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.11 Equipment connected to "Auto Tracking"

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.2 Acquisition

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.3 Tracking

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.4 Display

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.5 Operational warnings

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.6 Data requierements

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.7 Accuracy

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.8 Connections with other equipment

[Niet geldig (geldigheid vanaf 1999-01-01)]

3.9 Performance testt and warnings

[Niet geldig (geldigheid vanaf 1999-01-01)]

Annex 2 Operational scenarios

[Niet geldig (geldigheid vanaf 1999-01-01)]

Annex 3 Sensor errors

[Niet geldig (geldigheid vanaf 1999-01-01)]

Annex1 Definitions of terms

[Niet geldig (geldigheid vanaf 1999-01-01)]

Appendix 2 Electronic plotting aids

[Niet geldig (geldigheid vanaf 1999-01-01)]

• Informatietype: Internationaal
• Documentsoort: Resolutie
• Toegangsrechten: Extern
• Identificatie: PUC_2430_14
• Versie: 1
• Datum beschikbaarheid: 20-03-2009
• Geldigheid van: 01-09-1984
• tot en met: 31-12-1998
• Wijzigingsdatum: 24-11-2016
• Titel: 477(XII) Performance standards for radar equipment (MSC.64(67))
• Organisatie: International Maritime Organization (IMO)
• Taal: Nederlands
• Onderwerp: Veiligheid / Safety
• Hoofdtaak: Koopvaardij / Merchant Shipping
• Thema: Zeevaart / Seagoing ships / Mandatory Regulations / IMO Instruments (Mandatory) / Resolutions (Mandatory) / Assembly Resolutions (Mandatory) / A./Res. 300 until 499