Question about Lowrance LGC-2000 GPS Unit GPS Receiver

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I have Globalmap 3300c with an LGC-2000 antenna , when I updated the lowrance software to enable me to update the Globablmap 3300c software the GPS is now not recognising the antenna is attached??..I have tried rebooting, redownloading etc... Is there a simple fix for this? thanks.. Padraig

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  • padraig_kell Jun 03, 2009

    thanks. I will check the diagram with my set up.

    My GPS & antenna were working perfectly up to when I installed the software update for the GC-2000?...half way through the update installing the GPS hung ?..when I rebooted the GPS it now no longer recognises the antenna is attached? Seems to me like its a 'reading' problem.



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Try unatttaching the attena if you can if not un download an the reinstall

Posted on Jun 03, 2009

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The LGC-2000 should communicate with your Globalmap 3300c unit either directly (using the supplied extension cable) or through a NMEA 2000 network. Check the following connecting steps. If this does not work, your antenna may be defective.

Connecting Directly to the Unit works as follows:
after the module is installed, attach it to the end of the Y-adapter extension cable as shown in the following diagram. To connect it to the unit, insert the extension cable's splitter plug into the Network socket on the back of the unit and your system is ready to use.

I have Globalmap 3300c with - 0b113cc.gif

The extension cable’s shorter branch will have a 60-ohm terminator attached to it. Do not remove this terminator. When you're not connecting to a NMEA 2000 buss, you must leave the terminator connected to this socket for your antenna/receiver to function correctly.

Connecting to a NMEA 2000 Network works as follows:

The LGC-2000 can be connected to a NMEA 2000 buss, providing GPS information to any Lowrance GPS units attached to the buss. Contact LEI Extras for a NMEA 2000 buss adapter cable if you would like to do this. Simply attach the LGC-2000's connector to one end of the adapter cable and attach the other to an available port on the NMEA 2000 buss, as shown in the following image. (You
will have to use a similar adapter cable to connect your Lowrance unit)


Posted on Jun 03, 2009


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