NorthStar Navigation 961XD installation manual Equipment on the vessel, then check

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SECTION TWO - Installation

Table 3: Troubleshooting the GPS/DGPS antenna installation (continued)

 

 

 

Antenna

Symptom

Possible Solutions/Reasons

 

 

 

 

 

 

DGPS ANTENNA

High beacon SNR or low signal.

• Turn off all electrical devices and

(cont’d)

 

equipment on the vessel, then check

 

 

for improvement. Check fluorescent

 

 

lights, gauges, and so forth. Be cre-

 

 

ative! Check for power-line interfer-

 

 

ence by moving away from the dock

 

 

and/or the marina. Verify that the

 

 

antenna is mounted in accordance

 

 

with the recommendations shown in

 

 

Figure 5.

 

When vessel interference is still present:

• Isolate to the interfering device, with

 

 

breaker panel if necessary.

 

When the source of the interference is

• Experiment with different grounding

 

found:

 

locations (the best ground is the

 

 

 

 

ocean). Drop a temporary wire

 

 

attached to 8410 black wire over the

 

 

side of the vessel to see if the interfer-

 

 

ence source can be fixed by ground-

 

 

ing techniques.

 

 

• Disconnect shore power and move

 

 

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 a combo

 

 

antenna and vice versa. Consider

 

 

temporarily changing antenna types

 

 

to determine the effects on signal

 

 

reception.

 

 

 

DGPS ANTENNA

Poor, intermittent, or no beacon signal using

• Check the proximity of the antenna to

(cont’d)

a known-good loop or combo antenna.

radar antennas or other transmitting

 

 

devices, such as INMARSAT. A

 

 

radome can affect H-field antennas

 

 

even when power is off. Hint: To test

 

 

for the best location, move the

 

 

antenna and coax to temporary loca-

 

 

tions using an over-the-deck length of

 

 

coax, then relocate as necessary.

 

 

 

a. The GPS receiver AA180 supplies the 5.5 VDC to the AN150 active GPS antenna.

961 INSTALLATION MANUAL Revision A

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Contents 961X/XD Page Limited warranty policy Page Contents Installation Manual Revision a Figures Port 1 output setup sentences screen Tables Installation Manual Revision a Welcome Who should read this manualScope of this manual Getting technical support Hearing from youContacting Northstar Servicing the unit Returning a unit for serviceOrdering information Safety considerations Section TWO InstallationSystem overview Installation considerationsEnsuring a proper 961 installation Using the GPS antenna AN150Avoiding shortcuts Section TWO Installation Choosing a system location Mounting the control headYoke mounting 961 control head yoke-mount dimensions side Flush mounting 961 control head flush-mount drilling dimensionsWiring Installing the processorProcessor installation tips Wiring the system Electrical power requirementsChoosing an antenna location Installing the antennaConnectors Choosing an antennaSeparation distances between antennas Choosing the AN205-P combination antenna locationAbout the antenna cabling Installing the AN150 antennaMounting the AN150 antenna Wiring the AN150 antennaStripping the coax cable jacket Wiring the AN205-P antenna Installing the AN205-P antennaCorrect AN205-P combo antenna splitter wiring Mounting the AN205-P antenna Completed TNC connectorMounting Installing an 8410 ACU for use with the AN150 onlyACU assembly RF grounding Correct AN150 and 8410 wiringDifferential GPS antenna cable connectors Turning the unit on Turning the unit on and offInitial startup screen Owner’s message screen Advisory messageAdvisory message For new units only GPS signalsAccuracy GPS receiver status summarySOG and COG About auto-dimming modeTurning the unit off Lat/lon coordinatesTesting and troubleshooting Troubleshooting common installation problemsTroubleshooting the installation Display Processor Cont’d Dgps Searching Interference Troubleshooting the GPS/DGPS antenna installationAntenna Symptom Possible Solutions/Reasons Receiver Setup key. Check Equipment on the vessel, then check Component Symptom Possible Solutions/Reasons Troubleshooting the radar interfaceRadar Device Section TWO Installation Installation Manual Revision a Interfacing the unit Connector pin wiringInterface cable wiring Configuring the Nmea output portsParameter Options Port setup optionsSetting the output format About Nmea RAY 0183Displaying Nmea output sentences Nmea 0183 sentence identifiers About the Nmea TLL sentenceModifying Nmea output sentences Choosing the Nmea 0183 talker ID Setting Nmea 0183 lat/lon precision Setting the auxiliary port Setting the Nmea 0183 checksumsChanging the output rate Changing the Nmea 0183 waypoint ID Auxiliary port setup screen Aux port setup parametersPort off Setting PpnmDiagnostics Aux port baud ratePpnm output setup parameters Using VGA outputViewing head 2 serial number and software revision Service functionsViewing product information Viewing head 1 serial number and software revisionGPS receiver self-test and software revision Configuring the receiversProcessor serial number and software revision Beacon receiver self-test and software revisionReceiver information screen Changing GPS speed averaging valueAdjusting satellite elevation Setting Dgps operationViewing the GPS software version Automatic tuning Setting beacon frequency and baud rateViewing GPS status Manually setting baud rateSaving and restoring a 961 database Database function screen Select database to save dialog box Select database to restore dialog box Saving log data Select a restored database to undo dialog boxInstalling 961 software updates Maintenance functionsPower GPS receiver NorthstarInterfacing Processor Physical featuresControl head Processor Environmental HeadInternal beacon receiver specifications 961XD Signal processing Data processing PowerAN150 Active GPS Antenna AN205-P GPS/DGPS antenna Antenna Coupling UnitNumerics Lat/lon Installation Manual Revision a SOG

961X, 961XD specifications

NorthStar Navigation has long been a leader in marine navigation systems, and the NorthStar 961XD and 961X are no exceptions. These cutting-edge devices bring advanced navigation capabilities to both recreational boaters and professional mariners, ensuring precise positioning and enhanced safety on the water.

The NorthStar 961XD is equipped with a powerful GPS receiver that delivers exceptional accuracy, even in challenging environments. This is achieved through a combination of differential GPS (DGPS) technology and support for WAAS (Wide Area Augmentation System). These features enable users to achieve positioning accuracy within a few meters, which is crucial for safe navigation in crowded or complex marine environments.

One of the standout features of the NorthStar 961XD and 961X is their intuitive user interface. The devices boast a large, high-resolution color display that provides clear visibility in various lighting conditions, including bright sunlight. The menu-driven system allows users to quickly access essential functions, making it easy to plot courses, set waypoints, and track routes on the go.

Both models support advanced charting capabilities, including the ability to display vector and raster charts. The chart database can be easily updated via USB, ensuring that users have access to the latest navigational information. This is particularly important for long-distance cruisers navigating through unfamiliar waters.

Another significant feature of the NorthStar 961XD and 961X is their integrated fishfinder capabilities. With sonar technology, users can locate fish, understand the underwater topography, and enhance their fishing experience. This dual functionality makes the devices versatile companions for both navigation and hunting for the next big catch.

Connectivity is another important aspect of the NorthStar systems. Both models feature multiple connectivity options, including NMEA 0183, allowing seamless integration with other onboard electronics such as autopilots, radars, and AIS systems. This enhances the overall situational awareness and safety of the vessel.

Finally, the rugged design of the NorthStar 961XD and 961X ensures they can withstand the harshest marine environments. With water-resistant housing and durable construction, these devices are built to last, providing reliable performance year after year.

In summary, the NorthStar 961XD and 961X deliver a winning combination of advanced navigation technologies, user-friendly interfaces, integrated fishfinding capabilities, and robust construction. These features make them indispensable tools for anyone serious about safe and efficient navigation on the water.
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