Question about Lowrance LGC-12S GPS Receiver GPS Receiver

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I have a Lowrance LGC-12S which is used to provide time and date to an Airtraffic Control voice recorder system. The time and other data in the NMEA $GPRMC sentence used is correct but the date is showing 2030/11/19. The date does increment daily and all other NMEA data sentences seem to be correct. Any ideas as to what is causing this problem and how it can be fixed? Thanks, Chris

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Posted on Jan 02, 2017

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SOURCE: lcx-15ct (gps module not responding)

Before you give up on the LGC-12S you have now though, try plugging the LGC-12S right into the LCX-15CT without an extension cable. If the module not responding goes away...you just need a new extension (GPSX-25G p/n 99-46).

The power cable has a set of yellow, blue, orange, and bare data wires. If these wires short together, you can get the module not responding error.

If all that doesn't help...the LGC-12S is bad.

The LGC-12W p/n 112-06 will work with the LCX-15CT. You probably get this at many marine electronics dealers or go to lei-extras.com and buy it straight from Lowrance. They cost $229 so you might want to shop around putting that money into a whole new system altogether.
Make sure you have the latest software updates if you get the newer LGC-12W. These can be downloaded at http://www.lowrance.com/en/Downloads/Product-Software-Updates/

Let me know if you need more help.


Posted on Jul 11, 2009

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The additional wires are for NMEA data transfer to and from other devices and sensors like distance, speed, depth, temperature and NMEA 0183 sentences the unit will use when connected to a VHF radio or other NMEA 0183 device.

The manual link below.
http://www.lowrance.com/Root/Lowrance-Documents/US/ELITE-5_HDI_OM_EN_988-10518-001_w.pdf

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Lcx-15ct (gps module not responding)


Before you give up on the LGC-12S you have now though, try plugging the LGC-12S right into the LCX-15CT without an extension cable. If the module not responding goes away...you just need a new extension (GPSX-25G p/n 99-46).

The power cable has a set of yellow, blue, orange, and bare data wires. If these wires short together, you can get the module not responding error.

If all that doesn't help...the LGC-12S is bad.

The LGC-12W p/n 112-06 will work with the LCX-15CT. You probably get this at many marine electronics dealers or go to lei-extras.com and buy it straight from Lowrance. They cost $229 so you might want to shop around putting that money into a whole new system altogether.
Make sure you have the latest software updates if you get the newer LGC-12W. These can be downloaded at http://www.lowrance.com/en/Downloads/Product-Software-Updates/

Let me know if you need more help.


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But most likely, the LGC-2000 is toast and you will want to contact Lowrance support to see about getting it repaired/replaced.

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You can configure the unit to use specific NMEA sentences.
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let me know if this worked for you, or if I may be of further assistance.

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