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18-5 Installation: GPS antenna
Selecting an antenna | Restart GPS: |
Fit one of these GPS antennas:
•Normally use the GPS antenna supplied.
•An optional differential beacon DGPS antenna to give enhanced accuracy within range of land based differential beacons in areas where WAAS or EGNOS are not available. Such a DGPS antenna has both a GPS receiver and a beacon receiver, and it automatically applies the beacon correction to the GPS position.
•A compatible GPS or DGPS instrument or antenna connected by NavBus (see section
Note:
•To configure the 657 for different antenna options, see section
For more information, contact your Northstar dealer.
DGPS Source:
Enables or disables the satellite based DGPS correction (see section 7). The options are None or WAAS/EGNOS. Do not Enable WAAS/EGNOS outside their coverage areas or the accuracy of the position might be degraded.
WAAS covers all of the USA and most of Canada. To use WAAS, the GPS antenna must have a clear view of the sky towards the equator. EGNOS will cover most of Western Europe.
Restarts the GPS receiver, satellite reception will be lost until the receiver completes its restart and acquires the satellites.
! WARNING
MOB will not work if the Instrument does not have a GPS fix.
Select restart GPS and press
Installing an antenna
If an external antenna is required, install the antenna and fit the antenna cable back to the display unit. Follow the instructions in the manual supplied with the antenna. Fit an optional Northstar extension cable if required.
If a SmartCraft™ system or Northstar petrol/ gasoline sensors are fitted as well, fit a AIS cable:
GPS antenna
Yellow
Yellow
GPS/fuel AIS cable
White
Other connections
Otherwise:
Yellow | GPS antenna |
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During setup, configure the 657 for the chosen antenna, see section
Northstar Explorer 657 Installation and Operation Manual | 79 |