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DMR-800 LRIT - Long Range Identification Tracking SOLAS chapter V regulation 19-1
LRIT Long Range Identification Tracking
  DMR-800 LRIT - Hardware Benefits

  - Low cost alternative to
      Inmarsat C retrofit


  - Fully Compliant

  - Stand-Alone Operation

  - Enhanced Tracking Reports

  - Seamless Transfer Of ASP

- Seamless Global Coverage

- Extended Operating
    Temperature 


- Discrete Input 

- Over-The-Air Programming

- Embedded Data Log  

Even though many existing Inmarsat C terminals are already in use for GMDSS or SSAS and are capable of supporting the new LRIT requirements, many need to be manually upgraded or require a supplementary unit at an additional cost to be compliant.

The new DMR 800 LRIT uses the new Inmarsat - IsatM2M network, a service optimised for position and status reporting based on enhancements to previous Inmarsat D+ network.

The DMR 800 LRIT offers a compelling cost advantage in situations where you need LRIT complaint hardware and are considering upgrading your Sat C or installing new systems on your ships.

The DMR 800 LRIT hardware is a single hardware unit with built in GPS receiver and Inmarsat transceiver. The unit comes complete with power cable minimising installation time to no more than 20 minutes. Once connected to mains, the vessel is automatically activated and opens to conformance testing from your flag’s Authorised Testing ASP’s.

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DMR-800 LRIT - PRODUCT SPEC
INTERNAL COMPONENTS
GPS Receiver
Micro Controller
ISAT M2M INMARSAT Satellite Transceiver
Clock
Timer

POWER SUPPLY
Permanent 12v - 24v
CONNECTIONS
20m Cable
Connectors
PHYSICAL PROPERTIES
Size:160mm (diameter) x 100mm (height)
Enclosure: Weather Proof -40/+70
External LED Displays
DISPATCH
Installation Instructions
Location & Fixing Kits
Activation Procedure
Certification
INTERNAL COMPONENTS COMPONENTS SPECIFICATIONS
 
GPS Receiver
U-Blox receiver, 16 channels, 3m accuracy. 
Continuous and global GPS coverage with an accuracy of 3m.
 
Transceiver 
IsatM2M  
Global coverage Short Burst Messages. 
Payload (size limit):
• From terminal: 64 bits
• To terminal: 200 bits (133 characters)
• Standard reports • Custom reports
• Alerts: Triple burst (sent 3 times to ensure communication), Alerts sent to the user pre determine emergency services within 2 minutes
  Clock
Reports can be set to report at requested time.
  Timer
Reports are sent at regular intervals of time depending on the script (from 1 to 96 reports per day).
POWER SUPPLY Permanent
Continuous power 9VCD and 32VCD. 12V. Low power consumption 0.9W when receiving data and 9W when transmitting.
PROGRAMMING CAPABILITIES Script
• Pre-configured and secured for LRIT reporting
• Optional add-on commercial tracking available
SATELLITE
MESSAGING
From-Terminal
LRIT standard report:
• Position (2 second resolution) • Day of month • Time of day
(1 minute resolution)
Enhanced data (included with standard report)
• Speed (up to 51 knots to 0.2 knot resolution) • Course (1 degree resolution) • Configurable reporting frequency from 24 hours to 15 minutes • Current position response to over-the-air poll • Historical position retrieval via over-the-air query
 
To-Terminal
• Poll vessel for position • Reconfigure LRIT reporting frequency
• Query previous historical position • Overlay commercial tracking reports
CERTIFICATIONS/ COMPLIANCE
Satellite
• Inmarsat Type Approved
 
Regulatory
• IEC EN:60945 • FCC, RoHS, Anatel, IC pending 
• CE0470 (R&TTE)
DATA LOG
Capacity
• 320kB: Persistent storage of 140 days position history at 15 minute intervals
PHYSICAL PROPERTIES
Size
Very compact and light, it can be installed almost anywhere on the asset in a inconspicuous and unobtrusive way. 
160mm (diameter) x 100mm (height) 520g (weight)


Sat C /DMR 800 LRIT Technical Comparison with reference to MSC.263(84) ANNEX 9, Section 4

PARAMETER
COMMENTS SAT C DMR-800 LRIT
 
Is capable of automatically and without human intervention on board the ship transmitting the ship’s LRIT information at 6-hour intervals;
YES YES
 
Is capable of being configured remotely to transmit LRIT information at variable intervals;
YES YES
 
Is capable of transmitting LRIT information following receipt of polling commands;
YES YES
 
Has internal positioning capability (GPS);
YES YES
 
Can be supplied with energy from the main and emergency source of electrical power;
YES YES
 
Has been tested for electromagnetic compatability taking into account the recommendations developed by the Organization.
YES YES
Shipborne equipment transmits the following data, with each transmission of LRIT information, in compliance with ANNEX 9, Table 1:
YES YES
SHIPBOURNE 
EQUIPMENT IDENTIFIER
The unique identifier (“Terminal ID”) 
YES YES
POSITIAL DATA
GPS position is based on the WGS 84 datum.
Position ( latitude, longitude ) is provided, to 2-second resolution.
The same positional data and format is used for pre-scheduled and on-demand position reports. Pre-scheduled and on-demand position reports are easily distiguishable based on an event code included in the message encoding.
Additionally, Course is provided to 1-degree resolution and speed up to 50 knots is provided to 0.2 knot resolution.
YES YES
TIME STAMP 1
Unambiguous UTC date and time are provided as Day of Month and Time of Day, to 1-minute resolution.
YES YES
DMR 800 LRIT operates on the IsatM2M communication system, which provides coverage between +/- 75 degrees latitude globally. MarineTrack IsatM2M operates on 5 Inmarsat satellites: AOR-W, A OR-E (15.5˚W) IOR (64˚E), POR (178˚E), PAC-C (142˚W).
YES YES
IT terminal is to transmit the ship’s LRIT information at 6-hour intervals. However, the LRIT Data User may specify a more frequent transmission interval (via the ASP). All such changes are notified by an immediate response with position report that also indicates the new reporting rate.
YES YES
 
When a ship is undergoing repairs, modifications or conversions in dry-dock or in port, etc, the administration may reduce the frequency of the transmission of LRIT information to once every 24-hour period, or may temporarily stop the transmission of such information. All such changes are notified by an immediate response with position report that also indicates the temporary reporting rate (i.e. 24-hour or off).
YES YES


DMR 800 LRIT Technical Summary with reference to MSC.263(84) ANNEX 9, Section 13

DMR-800LRIT
TECHNICAL SUMMARY DMR-800LRIT
13.1
DMR 800 LRIT operating on IsatM2M service is made available within 15 minutes of the time it is transmitted by the ship. Typically the time between transmission and data availability for an LRIT Data User will be less than 30 seconds.
YES
13.2
On-demand LRIT information from the DMR 800 LRIT operating on IsatM2M servise is provided within 30 minutes of the time the request is submitted via the ASP. Typically, the time between request and response will be less than 1 minute.
YES


DMR 800 LRIT Technical Summary with reference to MSC.1/Circ.1257: Conformance Testing

TEST NUMBER CONFORMANCE TESTING COMPLIANCE
TEST 5b:
DMR 800 LRIT transmits date and time information in a format and resolution comparable to MEM code 11.
YES
TEST 5c:
DMR 800 LRIT includes the dat and time of transmission in the message payload as part of the ship’s LRIT information.
YES
TEST 7:
DMR 800 LRIT issues a response to an ASP Program-Stop command to acknowledge receipt and indicate a positive confirmation that reporting is henceforth switched off until a program-Start command is issued.
YES
TEST 8:
MarineTrack provides, upon request, relevant supporting documentation to ASP or administration confirming compliance with resolutions A.697(17) and A.813(19).
YES
TEST 9:
MarineTrack has tested a DMR 800 LRIT installed in a fixed position over 2 consectutive 12-hour periods to produce PASS results for 15-min and 60-min automatic transmission and receipt of LRIT information, well within 15 minutes of the time transmitted by the terminal.
YES
TEST 10:
MarineTrack has tested a DMR 800 LRIT installed in a fixed position to produce PASS result for receipt of 1 polled transmission with 30 min.
YES
TEST 13:
MarineTrack wholly owns and operates the IsatM2M (and D+) demodulator equipment at the Land-Earth Stations and provides a direct connection to our data centre for recognised ASP’s.
YES
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