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©2015 Icom America Inc. 

Page 4 

Icom America, Inc. 

12421 Willows Rd NE 

Kirkland, WA 

 

 

 

 

Troubleshooting Your GPS Connection 

 

Your Plotter/GPS receiver must be capable of sending the proper sentences 

(listed below) set for NMEA 0183 (Check your Plotter/GPS instructions for 

information.) 

 

 

Verify that the plotter/GPS device is sending GPGGA, GPGLL, GPRMC, GPVTG, or 

GPGNS sentences. (Check Plotter/GPS Instructions.) 

 

 

If you are still not receiving latitude and longitude, you can try setting the plotter 

to send just a single GPGGA sentence. 

 

 

Have a technician check the plotter/GPS using test equipment to verify it is 

sending the GPS sentence. 

 

 

Check the solder points on the radio and plotter connectors. Some connectors are 

very small, increasing the likelihood of solder bridging. 

 

 

Summary of Contents for IC-M424

Page 1: ...tener B Data L Yellow In Listener A Data H HM 195 COMMANDMICIV Handset HM 196 Handset non removable For more details about connections please review pages 83 84 in the Instruction Manual 1 Represents the NMEA In Out Leads 2 Represents the AF Out Leads OPC 1540 20ft of cable OPC 1541 20ft of cable OPC 478UC Programming Cable OPC 980 Programming Adapter Cable 2015 Icom America Inc The Icom logo is a...

Page 2: ...r with four colors brown white green and yellow The yellow and green wires connect to your GPS Connections Radio GPS NMEA in yellow NMEA Data out NMEA in green NMEA Data ground GPS Example Connections You will need to solder the 2 wires to the NMEA wires from your GPS For more specific information consult the individual instruction manual from the GPS manufacturer Garmin GPS ...

Page 3: ...aymarine GPS Note When using some Raymarine equipment you may need to connect your Icom radio directly to the Raymarine GPS itself not through a repeated port from other equipment such as a plotter This ensures that the proper NMEA sentence passes to the radio Standard Horizon GPS ...

Page 4: ...ify that the plotter GPS device is sending GPGGA GPGLL GPRMC GPVTG or GPGNS sentences Check Plotter GPS Instructions If you are still not receiving latitude and longitude you can try setting the plotter to send just a single GPGGA sentence Have a technician check the plotter GPS using test equipment to verify it is sending the GPS sentence Check the solder points on the radio and plotter connector...

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