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User & Installation Manual 

 

LT-300 GNSS Receiver 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Document Number:  95-100229 REV 1.00 

Release date: 

March 23, 2016 

 

 

Copyright © Lars Thrane A/S 

Denmark 

 

ALL RIGHTS RESERVED 

 

Summary of Contents for LT-300

Page 1: ...User Installation Manual LT 300 GNSS Receiver Document Number 95 100229 REV 1 00 Release date March 23 2016 Copyright Lars Thrane A S Denmark ALL RIGHTS RESERVED ...

Page 2: ......

Page 3: ... Lars Thrane A S is not responsible for the content or accuracy of any translations or reproductions in whole or in part of this manual from any other source Copyright 2016 Lars Thrane A S All rights reserved Disposal Old electrical and electronic equipment marked with this symbol can contain substances hazardous to human beings and the environment Never dispose these items together with unsorted ...

Page 4: ...ailable aids to navigation for safety of vessel and crew WARNING Do not disassemble Do not disassemble or modify this equipment Fire electrical shock or serious injury can result WARNING Compass safe distance The compass safe distance for standard and steering compasses is 0 3 m 1 ft Observe this distance to prevent interference to a magnetic compass WARNING Permanent watch In case of smoke or wat...

Page 5: ...ARNING A Warning is an Operation or Service procedure that if not avoided may cause a hazard situation which could result in personnel death or serious injury NOTE A Note provides essential information to the reader IMPORTANT Text marked Important provides essential information to the reader and is key information to the user in order for the equipment to work properly Personnel injury or damage t...

Page 6: ...oviding a minimum of information to complete an installation Installation a complete description of mounting and installation details with a step by step instruction for both pole and roof mount installations Connecting a description of the unit connector 8 pin multi cable connecting to NMEA 0183 connecting to NMEA 2000 and connecting the LT Service Tool Configuration using LT Service Tool a short...

Page 7: ...LT 300 User Installation Manual Lars Thrane A S www thrane eu v Record of Revisions Rev Description Release Date Initials 1 00 Original document March 23 2016 PT ...

Page 8: ...TION GUIDE 3 INSTALLATION 5 CONNECTING 19 CONFIGURATION USING LT SERVICE TOOL 26 SERVICE AND REPAIR 29 TROUBLESHOOTING 30 APP A OUTLINE DRAWINGS 31 APP B PERFORMANCE 33 APP C SPECIFICATIONS 34 APP D NMEA 0183 SENTENCES 35 APP E NMEA 2000 PGNS 37 APP F LT SERVICE TOOL COMMANDS 38 APP G DECLARATION OF CONFORMITY 39 ...

Page 9: ...e your vessel smooth navigation capabilities The 72 channel GNSS receiver benefits from advanced technologies such as Receive and track multiple satellite systems GPS QZSS GLONASS and BeiDou Support for Satellite Based Augmentation System SBAS EGNOS WAAS and MSAS The LT 300 GNSS Receiver is designed and built for the extremely demanding and rough environment at sea and with an operational temperat...

Page 10: ...e Installation on page 5 Step 2 Connecting the Unit see Connecting on page 19 Step 3 Configuring the Unit see Configuration using LT Service Tool on page 26 optional NOTE A quick installation overview is presented in the Quick Installation Guide on page 3 Here most of the necessary information is provided to perform a fast installation and take the product in use It is recommended to use the entir...

Page 11: ... GNSS Receiver LT 300 GNSS Pole Roof Mount incl screws for installation 10m Cable Multi 8 pin Simple Cut M Screw in Conn NMEA 2000 Micro C M Quick Installation Guide Unit Test Sheet Installation Mounting Mounting considerations Mount the unit horizontally Mount the unit with free line of sight to GNSS satellites If the Roof Mount is used for below deck installation make sure that the unit is capab...

Page 12: ...any Windows PC The LT Service Tool is connected to the LT 300 GNSS Receiver via the NMEA 0183 interface see Figure 4 LT Service Tool Key Features LT 300 GNSS Interconnect Details Pin No Wire Color Wire Designation 1 Brown TxD 2 Yellow TxD 3 Black GND 4 White CAN_H 5 Blue CAN_L 6 Orange RxD 7 Green RxD 8 Red Vsupply TABLE 2 LT 300 GNSS RECEIVER MULTI CABLE WIRE COLOR AND DESIGNATION FIGURE 3 TRANSM...

Page 13: ... unit or the outer cover Read the Safety Instructions at the front of this manual before installing or operating the unit Mounting and installation considerations For optimum system performance some guidelines on where to install or mount the LT 300 GNSS Receiver must be followed It is recommended to mount the unit in a location with as much free line of sight as possible while making sure that th...

Page 14: ...talling the LT 300 GNSS Receiver see Figure 5 roof mount and Figure 6 pole mount The following two sub chapters will in details step by step describe how to complete an installation with either a pole or roof mount Pole mount installation see Pole Mount installation on page 7 Roof mount installation see Roof mount installation on page 14 NOTE The LT 300 GNSS Receiver is delivered with both a Pole ...

Page 15: ...and make a record of the unit serial number for support or warranty issues that could occur in the future The unit serial number label is fixed on the pole mount as illustrated on Figure 7 FIGURE 7 POLE MOUNT INSTALLATION STEP 1 MAKE A RECORD OF THE UNIT SERIAL NUMBER FIGURE 8 POLE MOUNT INSTALLATION STEP 1 BOTTOM SIDE OF THE LT 300 GNSS RECEIVER ...

Page 16: ... for the pole mount installation See drawings under step 3 with respect to pole mount installation IMPORTANT Make sure that the LT 300 GNSS Receiver is capable of receiving signals from the GNSS satellites see Mounting and installation considerations on page 5 for details and no compass within 0 3 m 1 ft of the unit Mount the LT 300 GNSS Receiver at least 1 m away from VHF UHF MF HF Inmarsat Iridi...

Page 17: ...LT 300 User Installation Manual Installation Lars Thrane A S www thrane eu 9 of 39 FIGURE 12 POLE MOUNT INSTALLATION STEP 3 LOCATE AN APPROPRIATE LOCATION ...

Page 18: ...llation Lars Thrane A S www thrane eu 10 of 39 Step 4 Complete the internal or external cable routing Feed the communication cable through the pole mount FIGURE 13 POLE MOUNT INSTALLATION STEP 4 INTERNAL ROUTING OF THE COMMUNICATION CABLE ...

Page 19: ...LT 300 User Installation Manual Installation Lars Thrane A S www thrane eu 11 of 39 FIGURE 14 POLE MOUNT INSTALLATION STEP 4 EXTERNAL ROUTING OF THE COMMUNICATION CABLE ...

Page 20: ...as illustrated in Figure 15 pinol and safety lock screw IMPORTANT The pinol screw used for fastening the pole mount to the 1 tube shall not exceed 0 8 NM 0 60 lbs ft The Safety lock screw used for fastening the pole mount to the LT 300 GNSS Receiver shall not exceed 0 6 NM 0 44 lbs ft FIGURE 15 POLE MOUNT INSTALLATION STEP 5 SECURING SCREWS ...

Page 21: ...l the simple cut end of the communication cable according to the details provided in Connecting on page 19 NOTE GNSS satellite configuration can be performed using the LT service tool see Configuration using LT Service Tool on page 26 FIGURE 16 POLE MOUNT INSTALLATION STEP 6 INSTALL THE SIMPLE CUT END OF THE COMMUNICATION CABLE ...

Page 22: ...t installation IMPORTANT Make sure that nothing is blocking the GNSS satellite signals see Mounting and installation considerations on page 5 for details and that no compass is within 0 3 m 1 ft of the LT 300 GNSS Receiver Step 2 Measure and mark the installation holes in accordance with the drawing showed in Figure 18 Use the enclosed two stainless A4 screws for mounting FIGURE 17 ROOF MOUNT INST...

Page 23: ...cord of the unit serial number for support or warranty issues that could occur in the future The unit serial number label is fixed on the pole mount as illustrated in Figure 19 FIGURE 19 POLE MOUNT INSTALLATION STEP 3 MAKE A RECORD OF THE UNIT SERIAL NUMBER FIGURE 20 ROOF MOUNT INSTALLATION STEP 3 BOTTOM SIDE OF THE LT 300 GNSS RECEIVER ...

Page 24: ...olor description Figure 21 is illustrating the bottom side of the LT 300 GNSS Receiver highlighting the 2 color LED the locking symbols and the safety lock hole Step 5 Fasten the LT 300 GNSS Receiver to the Roof Mount as illustrated in Figure 22 to Figure 25 FIGURE 21 ROOF MOUNT INSTALLATION STEP 4 BOTTOM SIDE OF THE LT 300 GNSS RECEIVER FIGURE 22 ROOF MOUNT INSTALLATION STEP 5 FASTEN THE LT 300 G...

Page 25: ... eu 17 of 39 FIGURE 23 ROOF MOUNT INSTALLATION STEP 5 FASTEN THE LT 300 GNSS RECEIVER TO THE ROOF MOUNT FIGURE 25 ROOF MOUNT INSTALLATION STEP 5 UNLOCK POSITION OF THE LT 300 GNSS RECEIVER FIGURE 24 ROOF MOUNT INSTALLATION STEP 5 LOCKED POSITION OF THE LT 300 GNSS RECEIVER ...

Page 26: ...with the safety lock screw as illustrated in Figure 26 Connect the communication cable Step 7 The mounting is now completed Install the simple cut end of the communication cable according to the details provided in Connecting on page 19 FIGURE 26 ROOF MOUNT INSTALLATION STEP 6 FASTEN SCREWS AND CONNECT THE COMMUNICATION CABLE FIGURE 27 ROOF MOUNT INSTALLATION STEP 7 INSTALL THE SIMPLE CUT END OF T...

Page 27: ...on page 5 The communication cable is available in two lengths 10 or 30 meters The LT 300 GNSS Receiver is delivered including a 10 meter cable simple cut The communication cable wire color and designation is illustrated in Table 4 NOTE To avoid any misinterpretation the transmit Tx and receive Rx directions are illustrated in Figure 30 relative to the LT 300 GNSS Receiver FIGURE 29 LT 300 GNSS CON...

Page 28: ...NMEA 2000 bus termination to Terminated For further information on the LT Service Tool see Configuration using LT Service Tool on page 26 LED Color Description The color code and description of the LED is illustrated in Table 6 LT 300 GNSS Baud Rate Configuration Mode RxD RxD Baud Rate Option 1 default Floating not connected 4 800 Option 2 Grounded connected to GND 38 400 TABLE 5 CONFIGURATION OF ...

Page 29: ... NMEA 0183 Baud Rate on page 20 Check that both the NMEA 0183 receive device and the LT 300 GNSS Receiver have the same GND reference as illustrated in Figure 31 and Figure 32 IMPORTANT It is recommended to connect the LT 300 GNSS Receiver with a balanced NMEA 0183 connection RS 422 as illustrated in Figure 31 An unbalanced connection RS 232 as illustrated in Figure 32 is less robust and should on...

Page 30: ... the communication cable is shown in Table 7 NOTE The LT 300 GNSS Receiver can be configured to NMEA 2000 Open or Terminated The LT Service Tool must be used to change this configuration factory default is Open The LT Service Tool is described in details in Configuration using LT Service Tool on page 26 The remaining figures in this sub chapter does not show the screw in connector for simplicity F...

Page 31: ...p cable NMEA 2000 Terminated If the LT 300 GNSS Receiver is installed as illustrated in Figure 37 internal LT 300 NMEA 2000 bus termination is required and configuration must be changed from Open to Terminated default Open The LT Service Tool must be used to make this configuration see Configuration using LT Service Tool on page 26 The LT 300 GNSS Receiver is connected to the NMEA 2000 backbone us...

Page 32: ...e reference NOTE The LT Service Tool will automatically detect all LT Navigation devices which are connected to the PC s peripheral interfaces USB and serial Make sure that Tx and Rx wires are connected correctly The LT Service Tool will automatically try both 4 800 and 38 400 baud to search for possible LT Navigation devices If the LT Service Tool does not automatically detect a LT Navigation dev...

Page 33: ... RS 232 interface The LT 300 GNSS Receiver is supporting both RS 422 and RS 232 communicating link to the LT Service Tool Serial port RS 232 Illustration of a RS 232 interface in between a serial port and the LT 300 GNSS Receiver for providing a communication link for the LT Service Tool see Figure 40 NOTE When using the RS 232 unbalanced serial communication link it is important that the RxD sign...

Page 34: ... or RS 232 unbalanced serial interface in order to communicate with the LT Navigation devices The baud rate is either 4 800 or 38 400 baud see NMEA 0183 Baud Rate on page 20 NOTE It is recommended to use a USB to RS 422 converter for easy interfacing in between the PC LT Service Tool and the LT 300 GNSS Receiver Interconnection diagrams are illustrated in Connecting LT Service Tool on page 24 Auto...

Page 35: ...T 300 GNSS Receiver o Power On Self Test POST o Continuous Monitoring CM o General status Monitoring of NMEA 0183 data o Live NMEA 0183 sentences to inspect valid output from the LT 300 GNSS Receiver Live navigations data o Navigation window to display live data up date rate 1 second Automatic generation of a Diagnostic Report Upload of new application software List of commands All available comma...

Page 36: ...NASS For a complete list of possible configurations see Table 8 which may be configured using the LT Service Tool For further information on the LT Service Tool see Configuration using LT Service Tool on page 26 GNSS Satellite Receiver Configuration Configuration GNSS Satellites Default GPS SBAS QZSS GLONASS Option 1 GPS SBAS QZSS BeiDou Option 2 GPS SBAS QZSS Option 3 GPS QZSS Option 4 GLONASS Op...

Page 37: ...ing the distributor dealer 1 Make sure to have the product name LT 300 GNSS Receiver Part Number P N 51 100304 and the unit serial number S N XXXXXXXX identified The unit serial number is listed on the outside of the device pole mount 2 Write a technical report about the observation or error If possible attach a picture of the installed product and include a wiring diagram If possible make a diagn...

Page 38: ... the LT 300 GNSS Receiver as preferred source GPS GNSS Check that the LT 300 GNSS Receiver is supporting the expected NMEA 2000 PGNs see App E NMEA 2000 on 37 7 Using NMEA 0183 check your navigation equipment for correct baud rate Check that the LT 300 GNSS Receiver is supporting the expected NMEA 0183 Sentences see App D NMEA 0183 on page 35 8 Connect the LT Service Tool see Connecting LT Service...

Page 39: ...LT 300 User Installation Manual App A Outline Drawings Lars Thrane A S www thrane eu 31 of 39 App A Outline Drawings LT 300 GNSS Receiver with Pole Mount ...

Page 40: ...LT 300 User Installation Manual App A Outline Drawings Lars Thrane A S www thrane eu 32 of 39 LT 300 Roof Mount ...

Page 41: ...4 hours static 130 dBm 6 SVs By default the GNSS receiver is configured for GPS GLONASS SBAS reception Time To First Fix cold acquisition 26 s Time To First Fix hot acquisition 1 s Speed 0 1 knot 0 1 knot 0 to 195 knots 1 The LT 300 GNSS Receiver performance may be subject to degradation caused by an improper installation 2 The LT 300 GNSS Receiver has an immunity filter against Iridium and Inmars...

Page 42: ...emperature operational ambient 40 C to 55 C 40 F to 131 F Temperature storage ambient 40 C to 85 C 40 F to 185 F Vibration operational IEC 60945 sine Proprietary Maritime Random profile 240 h Vibration survival Properitary Maritime Random profile 100 h Vibration shock Proprietary Maritime profile 100 g pk 11 ms Waterproof rating IP67 Humidity 95 non condensing 40 C Wind operational 80 knots 93 MPH...

Page 43: ...ude WGS84 1 Hz GNGSA GNSS DOP and Active Satellite 1 Hz GNRMC Mini Specific GNSS Data 1 Hz GNVTG Course Over Ground and Ground Speed 1 Hz GNZDA Time and Date 1 Hz 38400 baud GNDTM Datum Reference 1 Hz GNGGA GPS Fix Data 1 Hz GNGLL Position Latitude Longitude WGS84 1 Hz GNGSA GNSS DOP and Active Satellite 1 Hz GNRMC Mini Specific GNSS Data 1 Hz GNVTG Course Over Ground and Ground Speed 1 Hz GNZDA T...

Page 44: ...ntifier is a special case that indicates the sentence data originates from multiple GNSS systems This is the case when the LT 300 is configured see GNSS satellite receiver configuration on page 28 to use multiple GNSS systems GPS GLONASS or GPS BeiDou The GSV sentence will never be sent with Talker Identifier GN as it will ever only contain data from one GNSS system If the LT 300 GNSS Receiver is ...

Page 45: ...126992 System Time 1 Hz 126993 Heartbeat 0 1 Hz 127258 Magnetic Variation 1 Hz 129025 Position Rapid Update 10 Hz 129026 COG SOG Rapid Update 4 Hz 129029 GNSS Position Data 1 Hz 129044 Datum 0 1 Hz 129539 GNSS DOPs 1 Hz 129540 GNSS Sats in View 1 Hz Requestable PGNs 126464 PGN List Transmit and Receive 126996 Product Information 126998 Configuration Information 129538 GNSS Control Status Oher PGNs...

Page 46: ...LT 300 User Installation Manual App F LT Service Tool commands Lars Thrane A S www thrane eu 38 of 39 App F LT Service Tool commands ...

Page 47: ...LT 300 User Installation Manual App G Declaration of Conformity Lars Thrane A S www thrane eu 39 of 39 App G Declaration of Conformity ...

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