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NorthStar 951X, Installation Manual

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NorthStar 951X Installation Manual Download Page 45

SECTION TWO - Installing the unit

951/952 INSTALLATION MANUAL Revision B

Page 35

Troubleshooting

common GPS/DGPS

antenna installation

problems

Whenever possible, the best and most efficient way to troubleshoot is to 
use a known-good set of cables, a splitter for combo antennas (when 
applicable), and working antennas as spares for swapping.

In Table 3, “Troubleshooting the GPS/DGPS antenna installation,” on 
page 35, the Northstar AN150 refers to the 12-dB GPS antenna; the 
Northstar 8410 coupler with whip antenna refers to the beacon receiver 
whip-type (E-field) antenna; and the Northstar AN205-P refers to the 
combination (combo) GPS/DGPS loop antenna with splitter. 

Table 3: Troubleshooting the GPS/DGPS antenna installation

Antenna

Symptom

Possible Solutions/Reasons

GPS ANTENNA 

Poor or no GPS signal while using the 
AN150 antenna.

If 5.5 VDC low or missing with load con-
nected:

If 5.5 VDC is missing with load discon-
nected:

If 5.5 VDC is present:

•

Turn off any onboard transmitting 
devices.

•

Check for 5.5 VDC at antenna with 
and without antenna load connected.

a

•

Check for 5.5 VDC at 951/952 BNC 
connector.

•

It indicates a bad connector installa-
tion, bad GPS board, or bad AN150 
antenna.

•

It indicates a bad GPS board.

•

It indicates a bad AN150. Replace the 
AN150.

DGPS ANTENNA 

No GPS or DGPS

•

Bad splitter configuration.

b

•

Splitter cables may be reversed for 
GPS and DGPS output.

Poor or no GPS signal while using the 
AN205-P antenna with splitter:

If 7.75 VDC is low or missing with load con-
nected:

If 7.75 VDC is low or missing with load dis-
connected:

If 7.75 VDC is present at processor UHF 
connector but not at antenna:

•

Check installation for correct cabling.

•

Check for 7.75 VDC at antenna with 
and without antenna load (cables and 
splitter) connected.

c

 (Use “T” connec-

tors to measure VDC under load.)

•

Check for 7.75 VDC at 951/952 UHF/
DGPS connector.

•

It indicates a bad connector installa-
tion, bad differential 8500-A board, 
bad AN2

xx

. The load is too great or 

the 8500-A board is defective. 

•

It indicates a bad 8500-A board, or 
other internal fault.

•

It indicates bad cabling, bad connec-
tors, or a bad splitter.

Summary of Contents for 951X

Page 1: ...AND 952X XD GPS CHART NAVIGATORS INSTALLATION MANUAL Revision B Part Number GM1505C Northstar Technologies 30 Sudbury Road Acton Massachusetts 01720 www northstarcmc com Service 978 897 0770 Sales 978 897 6600 ...

Page 2: ......

Page 3: ...ponsibility of the owner To be covered by this warranty the Northstar equipment must have been in normal use This warranty does not apply to units with defects caused by improper installation physical damage abuse tampering lightning or other abnormal electrical discharge or to units with defaced or altered serial numbers or to units repaired by unauthorized persons or repaired in a manner that vi...

Page 4: ......

Page 5: ... system location 8 Wiring the unit 13 Installing the antenna 15 Turning the unit on and off 28 Testing and troubleshooting the 951 952 31 SECTION THREE Interfacing 39 Interfacing the unit 39 Configuring the NMEA output ports 41 Connecting to other equipment 48 Setting the anchor watch alarm honk 55 Configuring the RS 232 port 58 Ordering 951 952 software updates 60 APPENDIX A Technical specificati...

Page 6: ...Page ii 951 952 INSTALLATION MANUAL Revision B ...

Page 7: ...igure 10 Completed BNC connector 20 Figure 11 Combo GPS DGPS antenna AN205 P 20 Figure 12 Correct AN205 P combo antenna splitter wiring 21 Figure 13 Stripping the coax cable jacket 22 Figure 14 Flared cable braid 22 Figure 15 Completed TNC connector 22 Figure 16 ACU assembly 23 Figure 17 Correct AN150 and 8410 wiring 24 Figure 18 PL 259 UHF connector 26 Figure 19 Proper insertion of a chart cartri...

Page 8: ...Page iv 951 952 INSTALLATION MANUAL Revision B ...

Page 9: ...pins 40 Table 5 Port setup options 42 Table 6 0183 sentence identifiers 44 Table 7 Connecting to an external Northstar beacon receiver 52 Table 8 Connection to Northstar 800 port A 54 Table 9 Connection to Northstar 800 port B 54 Table 10 Northstar 800 series output port setup 54 Table 11 Yeoman plotter setup with the unit 55 Table 12 Beep and honk settings for all alarms 57 Table 13 Standards for...

Page 10: ...Page vi 951 952 INSTALLATION MANUAL Revision B ...

Page 11: ...cated all information in this manual refers to both the X non differential and XD differential ver sions of the unit Who should read this manual The Northstar 951 952 Installation Manual is intended for marine techni cians who are configuring and installing either 951 or 952 GPS chart nav igators Scope of this manual In this manual you ll find information about the following mounting and wiring th...

Page 12: ...nly at the Northstar factory Service includes a complete hardware and software check out For a system under warranty shipping charges to the factory are the only cost for factory repair Repaired units will be returned via prepaid econ omy ground freight units returned overseas are chargeable Units and accessories returned for warranty repair that are determined to be without fault are subject to a...

Page 13: ...uirements before ship ping the unit please call the factory for turnaround time freight charges and payment arrangements The unit should be shipped only in a properly designed carton with pack ing material Shipments to the Northstar factory should be made to the following address Northstar Technologies Service Department 30 Sudbury Road Acton MA 01720 USA CAUTION You may want to back up any user d...

Page 14: ...SECTION ONE Introduction Page 4 951 952 INSTALLATION MANUAL Revision B ...

Page 15: ...re starting the installation Further it is highly recommended that you post a notice by this switch telling others to keep power off while you re performing the installation If power is left on or turned on during the installation then fire electrical shock or other serious injury may occur CAUTION Be sure to ground the equipment in order to prevent electrical shock and mutual interference Be sure...

Page 16: ...terface cable 10 foot power cable flush mount drilling template connectors and parts kit sunshield Northstar 951XD 952XD Installation Manual Northstar 951XD 952XD Operator s Manual 3 After reviewing the components next review the components of a proper installation For details see Ensuring a proper installation below 4 Select the desired unit mounting location For details see Choosing a system loc...

Page 17: ...igate safely Bench testing the unit Northstar recommends that you bench test the unit before installing it on the vessel Bench testing ensures that the equipment is fully operational and allows the GPS receiver to collect its almanac and ephemeris data for the installed location which results in less on board installation time Using the AN150 GPS antenna The GPS antenna is best mounted in the clea...

Page 18: ...unting location should be chosen carefully before any drilling or cutting takes place Choose a mounting location that allows good visibility of the unit s screen is within comfortable reach and pro vides a reasonably direct path for running the required electrical cabling Be sure you have easy access to the control panel s keys and that the dis play can be clearly seen from the normal vantage poin...

Page 19: ...SECTION TWO Installing the unit 951 952 INSTALLATION MANUAL Revision B Page 9 Figure 1 951 952 dimensions side ...

Page 20: ...SECTION TWO Installing the unit Page 10 951 952 INSTALLATION MANUAL Revision B Figure 2 951 952 dimensions front ...

Page 21: ...arance at the rear for cables and connectors For yoke mounting leave ample room usually two inches all around the sides and top to avoid crowding the unit For the recommended drilling dimensions see Figure 3 below Before drilling holes rotate the unit to the desired angle to ensure proper clearance for cables and operation of the unit Figure 3 Yoke mount drilling dimensions ...

Page 22: ...SECTION TWO Installing the unit Page 12 951 952 INSTALLATION MANUAL Revision B For the recommended flush mounting drilling dimensions see Figure 4 below Figure 4 Flush mount drilling dimensions ...

Page 23: ...5 feet without adversely affecting the operation of the unit Electrical power requirements The unit is a negative ground system that is reverse polarity protected an external fuse prevents damage to sensitive components The wires in the 10 foot power cable must be connected as follows black and white can be connected together at the power source Red Positive fused lead Black Negative White Ground ...

Page 24: ...al fuse or breaker is intended to protect the vessel wiring and prevent electrical fires The power wiring should be connected directly to the battery when possible for optimum noise immunity Figure 5 Rear connectors J1 Power Connector 3 wire J2 Main I O Interface Connector 18 wire J3 Auxiliary 10 wire J4 GPS Antenna Connector BNC J5 DGPS Antenna Connector UHF Internal fuse The unit is designed wit...

Page 25: ...vital link between the unit s receiver and the outside world Aesthetics and easy access should be secondary to pro viding strong and reliable GPS signals to the unit s receiver You should select a location for the antenna that meets the following requirements The antenna should have a reasonably clear view of the horizon but be no higher than necessary side to side motion of the antenna caused by ...

Page 26: ...mum portability is required or when you want only a single antenna a combination GPS DGPS antenna is avail able The combo antenna should be located where it has a clear view of the horizon but where it isn t the highest point on the vessel Keep the combo antenna at least six feet away from objects that can shade GPS or differential signals If poor GPS Signal to Noise Ratio SNR readings are obtaine...

Page 27: ...the antenna low Be sure that any direc tional L band transmitting antennas such as radar or satellite communi cation antennas can never point at the GPS antenna since its internal preamplifier is quickly destroyed by such radiation Figure 7 GPS only antenna AN150 NOTE Concerns for the AN205 P that aren t explained in Table 3 Troubleshooting the GPS DGPS antenna installation on page 35 include the ...

Page 28: ...nnector end of the coax to the mating connector inside the upper half of the GPS antenna Be sure to tighten it securely as vibration can loosen the connection over time In addi tion protect the coax to antenna connection with liquid electrical tape or self vulcanizing electrical tape 5 Align the upper half of the antenna with the bottom half and tighten the four screws Be careful not to over tight...

Page 29: ...ie Set 227 980 3 4 Install cable assembly into body assembly so inner fer rule slides over dielectric and under braid Push cable assembly forward until contact seats in insulator Slide outer ferrule over braid and up against connector body Crimp outer ferrule using Cavity A of tools specified above The connector ferrule to cable junction can be sealed and protected using adhesive lined heat shrink...

Page 30: ...e 12 Correct AN205 P combo antenna splitter wiring below The splitter should be located near the unit for conve nience but may be situated virtually anywhere along the length of the maximum 100 feet of RG 59 GPS cable without appreciable signal loss Note however that the splitter isn t weatherproof and should be placed in a protected area where it won t be subjected to direct water splash or spray...

Page 31: ... you ve mounted the antenna and cut the cable to length not less than 50 feet install the supplied TNC connector at the other 952X end See Figure 13 Figure 14 and Figure 15 below A satisfactory crimp for this connector may be made with a commonly available high quality crimping tool designed for use with TNC connectors NOTE Be sure that you properly install the TNC connector Most sys tem failures ...

Page 32: ...te insertion into inner ferrule Figure 14 Flared cable braid 3 Place center contact onto center conductor so that it butts against the cable dielectric Crimp the contact in place using Amphenol tool handle 227 944 and Cavity B of Die Set 227 980 3 4 Install cable assembly into body assembly so inner ferrule slides over dielectric and under braid Push cable assembly forward until con tact seats in ...

Page 33: ...he ACU also serves as a sturdy mounting base for the whip antenna The ACU consists of two pieces The circuitry is sealed in a rugged water proof fiberglass polycarbonate body the upper end of which is threaded to accept a standard 4 foot whip antenna A large female thread is molded into the lower portion or base of the ACU body into which the upper half is secured see Figure 16 ACU assembly A gask...

Page 34: ...h of 300 feet The cable passes up through the hol low ACU base and connects to the PL 259 UHF connector at the bottom of the ACU For UHF connector preparation see Differential GPS antenna cable connectors beginning on page 25 Figure 17 Correct AN150 and 8410 wiring CAUTION Maintaining the ACU s weathertight seal between its upper and lower halves requires only hand tightening the two together Usin...

Page 35: ...onnection from the antenna input circuit The purpose of bringing it out is to make available a separate signal ground path Use 16 AWG minimum for grounding If possible use a grounding strap that is designed for this purpose Other electrical equipment onboard can cause large amounts of electrical noise even at points that appear well grounded Try several ground points ground plate vessel ground eng...

Page 36: ...nnas If you have several possible antenna locations you may evaluate each by operating the unit with the DGPS antenna temporarily mounted in each location The best location is one providing the lowest noise count atmospheric impulse noise generated by thunderstorms and other conditions includ ing vessel generated noise and any on board interference and highest Signal to Noise Ratio SNR You can vie...

Page 37: ...e differential receiver antenna is the highest object these discharges can totally override the differential signals and cause poor operation in bad weather The optimum antenna location is high and clear for fair weather operation but below the top of a metal mast or other antenna for best foul weather operation On sailing vessels the ACU could be mounted on top of a low mast or on the stern rail ...

Page 38: ...y closed and latched to display this information One of two possible screens will be displayed If a cartridge is present the cartridge name and date are displayed at the bottom of the CHART SETUP STATUS screen at left below If a cartridge is either not installed or incorrectly installed the words NONE INSERTED are displayed at right below The cartridge name is derived from its Navionics catalog nu...

Page 39: ...ightly in which critical components and functions are checked for any errors The Navionics chart car tridge must remain free from debris and moisture at all times To ensure that you do not expose the car tridge to any environmen tal damage please use caution when changing the cartridge Exercise care when inserting the cartridge into the North star unit see description and illustration at right Whe...

Page 40: ... charts It is the captain s responsibility to cross check the 951 952 against other sources of navigation data To proceed you must first acknowledge your acceptance of the advisory message by pressing any one of the five function keys located beneath the display screen GPS signals Once the unit is turned on and has acquired satellite data you can check the quality of the GPS signals being received...

Page 41: ...splayed Troubleshooting common installation problems Typical problems you may encounter either during or after the installa tion process are outlined in the following tables Table 2 Troubleshoot ing the installation on page 31 below and Table 3 Troubleshooting the GPS DGPS antenna installation on page 35 Table 2 Troubleshooting the installation Problem Area Symptom Possible Solutions Reasons POWER...

Page 42: ...or the Northstar Ser vice Department SYSTEM System lock ups Hardware related The system locks up on a random basis with no apparent pattern The system locks up when using a chart card System fails any initial self tests other than ROM NO GOOD Internal hardware failure call your Northstar dealer or the Northstar Ser vice Department Possible bad chart card Remove the card and inspect the pin area of...

Page 43: ... differential transmitter within range check local knowledge or transmit ters Check for high noise level possibly due to a storm front or for local inter ference at the marina or on the ves sel For details about noise level meanings see the Northstar 951 952 Operator s Manual GM1500C Turn off power to each and all of the vessel s other instruments one at a time to isolate the source of the inter f...

Page 44: ... high levels of noise on the DGPS STATUS screen Turn off power to each and all of the vessel s other instruments and sys tems one at a time to isolate the source of the interference Attempt to eliminate the noise through earth grounding or RF filtering tech niques as appropriate to the type of noise encountered GPS The unit powers up but poor GPS SNR readings are obtained even after running the un...

Page 45: ...urn off any onboard transmitting devices Check for 5 5 VDC at antenna with and without antenna load connected a Check for 5 5 VDC at 951 952 BNC connector It indicates a bad connector installa tion bad GPS board or bad AN150 antenna It indicates a bad GPS board It indicates a bad AN150 Replace the AN150 DGPS ANTENNA No GPS or DGPS Bad splitter configuration b Splitter cables may be reversed for GP...

Page 46: ...ere check that the DGPS OPERATION option is set to ENABLED and the BEACON FREQ option is set to AUTO and that the BEACON BAUD RATE option is set to AUTO Press the key to access the USER CUSTOMIZATION screen then press the menu key to display the SERVICE INFORMATION screen Here check that the BEACON RX SELF TEST reads PASSED Check the coax and antenna for open short and check for 7 75 VDC at the UH...

Page 47: ...ove away from the dock and or marina power lines and lights can cause interference Temporarily relocate the 8410 or combo antenna as far away from the interfering source as possible and monitor the effect on reception If it improves consider relocating the antenna or try to determine if the inter ference can be eliminated at its source Normally noise that affects an 8410 DGPS coupler won t affect ...

Page 48: ...o antenna directly into the GPS BNC con nector provided that the 5 5 VDC is present This troubleshooting technique effectively eliminates the splitter from the equation If the splitter is bad GPS may not work when connected normally provided that the 7 75 VDC from the beacon receiver is present Note that the combo antenna should never be plugged directly into the GPS port under normal circumstance...

Page 49: ... is easily interfaced to other equipment as described below The most common interface data format used with installations today is NMEA 0183 which is a widely accepted standard of data transfer between almost all types of marine electronics enabling completely dif ferent instruments to speak a common language The unit has the following ports two programmable NMEA input output ports one RS 232 inpu...

Page 50: ...EA PORT 1 OUTPUT A VIOLET 12 NMEA PORT 1 OUTPUT B GRAY 7 NMEA PORT 1 OUTPUT GND BLUE w WHITE STRIPE 8 NMEA PORT 2 INPUT A WHITE w BROWN STRIPE 6 NMEA PORT 2 INPUT B BROWN w WHITE STRIPE 2 NMEA PORT 2 INPUT GROUND WHITE 5 NMEA PORT 2 OUTPUT A YELLOW 15 NMEA PORT 2 OUTPUT B ORANGE 11 NMEA PORT 2 OUTPUT GND BLACK 10 RS 232 GROUND TAN 17 RS 232 RX GREEN 16 RS 232 TX RED 18 EXT GND FOIL DRAIN WHITE ORA...

Page 51: ...xample a relay a spike suppression diode such as a 1N4001 should be connected across the load Cathode connects to the power side of the device and anode connects to the output pin side The output produces a negative pulse 80ms wide and supports speeds from zero to 100 knots clamps at 100kt Figure 21 200 PPNM output Configuring the NMEA output ports Each output port can be programmed to meet most a...

Page 52: ...tar factory settings are adequate for most peripheral equipment but the following options are available if needed Table 5 Port setup options Parameter Options OUTPUT FORMAT see below choose NMEA 0180 NMEA 0183 V2 0 0183 V1 5 RAY 0183 DATAM CDX or NONE NMEA 0183 TALKER ID see page 45 choose GP LC or II to make the unit look like a GPS receiver Loran C receiver or an inte grated instrument NMEA 0183...

Page 53: ... bearing to the waypoint 0183 RAY is used when transmitting receiving position information to or from Raytheon equipment It uses Raytheon s non standard NMEA 0183 checksum where on output the checksum isn t included and on input to the 951 952 the checksum is ignored Note With the checksum ignored on input it is possible that the unit may receive contaminated NMEA data when connected to an externa...

Page 54: ...ings of the NMEA 0183 three letter identifiers are defined in the table below Table 6 0183 sentence identifiers 0183 identifier Meaning APB Autopilot Sentence B BOD Bearing to Destination BWC Bearing Distance to Wpt Great Circle GGA GPS Fix Data GLC Geographic Position Loran C GLL Latitude Longitude GSA GPS DOP and Active Satellites GSV GPS Satellites In View HSC Heading Steering Command MSS MSK R...

Page 55: ...lection or to leave it unchanged 3 Repeat for each sentence as desired When you re done press the menu key to go back to the PORT SETUP screen If you want to set all the sentences to the factory settings for recom mended output press the menu key If you want to turn on only a select few sentences for output press the menu key to turn off all sentences then turn the desired ones back on Choosing th...

Page 56: ...he level of precision of the 0183 position information as it is output by the 951 952 The choice you make depends on the equip ment to which you re outputting NMEA data For the number of digits of precision required for that particular device refer to the manufacturer s instructions XX XX lat lon precision to two decimal places hundredths of min utes or 60 feet XX XXX lat lon precision to three de...

Page 57: ...ection and press the key when done Changing the NMEA 0183 waypoint ID Many marine electronic devices such as radars and electronic plotters can display the waypoint names if they re output by the 951 952 1 At the PORT 1 SETUP or PORT 2 SETUP screen press the to highlight the NMEA 0183 WAYPOINT ID AS option then press the menu key 2 Change the option from NUMBER to NAME and press the key when done ...

Page 58: ... coordi nates in the NMEA 0183 output sentences press the key Connecting to other equipment Connecting to other Northstar units Two 951 952 or 941 units can be connected in order to take advantage of the waypoints routes sharing feature This convenient feature lets all waypoints and routes be transferred between any combination of two of these units Using this feature involves three main steps whi...

Page 59: ...kit Use only Belden 9503 twisted pair cable Connecting the units involves three main procedures assembling the cable terminating the cable and connecting the cable ends all are described below To assemble the cable 1 Cut the cable to the desired length 2 Slide the following parts onto each end of the cable in the following order NOTE When transferring waypoints and routes between two units Northst...

Page 60: ...er turn ensuring that it s facing in the correct direction 3 Trim and prepare the wires for soldering to the connector body 4 Install the ferrite beads on the appropriate wires 5 Terminate the cable as described below To terminate the cable 1 Terminate and solder the appropriate wires to the appropriate pins See Figure 22 Aux port interface diagram wiring side view solder cup below ...

Page 61: ... connector body and tighten 4 Install the strain relief clamp with two screws 5 Connect both cable ends to a 941 951 952 as described below CONNECTOR A connects to unit aux port Pin number 1 2 3 4 CONNECTOR B connects to unit aux port Pin number 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 No connect No connect No connect No connect No connect Aux input A Ground shield Aux output A Aux input B Aux output B S...

Page 62: ...ng waypoints and routes between units Connecting to an external source of differential corrections As described in the Northstar 951 952 Operator s Manual differential cor rections greatly enhance the accuracy of GPS by improving position fixes to an accuracy of 1 3 meters in most cases To take advantage of this extra level of precision if your 951 952 isn t equipped with an internal differen tial...

Page 63: ...s time may be different 3 If you want to receive SC 104 corrections through the unit s RS 232 interface port the port information box in the lower center of the screen must read SC 104 IN If the port is set for anything other than SC 104 IN press the menu key then press the to display SC 104 IN then press the key 4 Use this same procedure to set the baud rate to match that of the external device i...

Page 64: ... 800 800X Ref erence Manual Part Number GM260 Table 8 Connection to Northstar 800 port A 800 OUTPUT Ý Ý Ý Ý CONNECT TO EITHER Þ Þ Þ Þ Port A 951 952 Port 1 951 952 Port 2 Pin 12 brown 3 white with brown stripe 6 Pin N blue 1 brown with white stripe 2 Table 9 Connection to Northstar 800 port B 800 OUTPUT Ý Ý Ý Ý CONNECT TO EITHER Þ Þ Þ Þ Port B 951 952 Port 1 951 952 Port 2 Pin 7 brown 3 white with...

Page 65: ...reen as well as on both the ALPHA and LOCAL waypoints lists to access these lists press the key then menu key then the menu key until you reach the desired list On the ALPHA and LOCAL lists this radar waypoint is displayed with the hours minutes sec onds day month year for example 12 50 20 30JUN99 in the descrip tion field Setting the anchor watch alarm honk In the anchor watch alarm function you ...

Page 66: ...ashing and the alarm auto matically starts beeping you ll hear the beeping only if you ve set the ALARM AUDIO option on the ALARMS or ALARMS BACKLIGHT screen to ON The honk sequence then starts for a total of 3 5 minutes 1 second of honking followed by 14 seconds of silence 2 seconds of honking fol lowed by 13 seconds of silence 3 seconds of honking followed by 12 sec onds of silence and so forth ...

Page 67: ...951 After you set all alarms to honk the system emits an output sound for half a second followed by silence for half a second This repeatable honking sequence stops when the alarms either automatically clear or you manu ally clear them To set all alarms to honk 1 Press the key once to display the ALARMS screen 952 or ALARMS BACKLIGHT screen 951 2 Press the to highlight the HONK OUTPUT option then ...

Page 68: ...g SC 104 out SC 104 OUT outputs differential corrections from the 951XD s or 952XD s internal differential receiver to an external device that accepts the stan dard SC 104 data stream When using SC 104 OUT be sure that the BAUD RATE setting also matches the baud rate requirements of the receiving device Using SC 104 in SC 104 IN accepts differential corrections from any external source trans mitti...

Page 69: ...PTIONS screen if necessary change the RS 232 SETUP option to display the appropriate COPY PORT 1 or COPY PORT 2 selection by pressing the menu key then pressing the to change the selection then pressing the key The unit will now copy and output the specified port s data format through the RS 232 port to an external device About the diagnostic option The RS 232 port s DIAGNOSTIC option is for facto...

Page 70: ...ructions When you call be sure to have the current software version number ready To access this information about the unit press the key until you display the USER CUSTOMIZATION screen then press the menu key to display the SERVICE INFORMATION screen The software version is displayed in the MAIN BOARD SOFT VER field For end users End users should contact their respective dealer for these updates N...

Page 71: ...S w o Differential S A on Navigation Update Rate 1 per second Time To First Fix 30 seconds typical Dynamics Velocity 1800 km h Acceleration 4 m sec Jerk 2 m sec Interfacing Two bi directional NMEA I O ports One bi directional RS 232 port Waypoint upload download capability with appropriate software Operating software upload NMEA output sentences APB BOD BWC GGA GLC GLL GSA GSV HSC MSS RMC RMA RMB ...

Page 72: ...nvironment 1988 1992 amend Internal DGPS receiver specifications Signal processing Number of Channels 2 Frequency Range 283 5 325 0 kHz Tuning Resolution 2 Hz Minimum Signal Strength 1µV m 100bps Dynamic Range 100 dB Adjacent Channel Rejection 50 dB at 1 kHz Acquisition Time 5 seconds manual command 15 seconds automatic warm start 15 minutes automatic cold start Table 13 Standards for IEC complian...

Page 73: ...Consumption 2 Watts AN150 Active GPS Antenna Height 2 7 inches Diameter 3 0 inches Weight 0 5 pounds 8410 Antenna Coupling Unit Height 11 inches Diameter 2 6 inches Weight 1 5 pounds DGPS Whip Antenna 48 inch fiberglass whip not supplied Shakespeare 4 173 loaded or Radio Shack 21 934 Combination GPS DGPS antenna Frequency 1575 MHz 2 MHz Finish Outdoor Weatherable Polymer Polarization Right Hand Ci...

Page 74: ...APPENDIX A Technical specifications Page 64 951 952 INSTALLATION MANUAL Revision B ...

Page 75: ...afety concerns while installing 5 servicing the unit 2 RMA number 3 testing and troubleshooting the unit 31 turning the unit off 31 turning the unit on 28 wiring the unit 13 A ACU See 8410 ACU 6 Alarm anchor 55 57 audible 55 58 AN150 antenna 18 cable length 18 choosing a location 15 17 dimensional drawing 17 flaring the end of the cable braid 19 overview 7 stripping the coax cable jacket 19 tools ...

Page 76: ...and 2 using 59 D Datamarine CDX output format 43 DGPS antenna 8 14 25 26 status screen 31 troubleshooting 33 troubleshooting antenna installation 35 F Flush mounting 11 drilling dimensions 12 Fuse troubleshooting power problems 31 G GPS accuracy 47 and DGPS 23 52 antenna 6 14 15 17 18 19 21 satellite status screen 30 troubleshooting antenna installation 35 Grounding 25 H Honk alarm settings 56 set...

Page 77: ...25 NMEA 0180 output format 42 NMEA 0183 39 41 checksums 48 lat lon precision setting 46 output port datum 48 sentence identifiers turning on and off 44 talker ID 46 waypoint ID 47 Noise 14 25 26 Northstar 800 54 Northstar service department 2 O Output formats 43 Output ports 39 41 Output rate changing 47 P Parts ordering 5 Port setup options connecting to Northstar 800 54 programming the ports 41 ...

Page 78: ...o noise ratio 26 Software updates ordering 60 Splitter antenna 21 System lock ups troubleshooting 32 T Talker ID 46 TDs time differences 54 Technical support 1 TNC connector 18 19 Transferring waypoints between two Northstar units 48 Troubleshooting the antenna 35 the installation 31 Turning off the 951 952 31 Turning on the 951 952 29 U Updates ordering 60 V Video troubleshooting 31 W Warranty st...

Page 79: ...Index 951 952 INSTALLATION MANUAL Revision B Page I 5 ...

Page 80: ......

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