Connecting a GR4 GPS Receiver to the Matrix
Here's how to access GPS functionality using your GR4 GPS Receiver Accessory:
1.Attach the GR4 GPS receiver to your Matrix Control Head COM port using the NMEA cable attached to the antenna.
2.If you are already using other Matrix accessories plugged into the COM connector, you will also need to use the
3.Power up the Matrix Fishing System (see your Matrix Operation Manual for details).
4.When the Matrix detects the NMEA input from the GPS Receiver, the Combo, Track and Bird's Eye Views will be added automatically to the VIEW key function. A Navigation menu tab and the Navigation
NMEA Output
5.The Matrix Control Head outputs NMEA signals thru the "pigtail" cable attached to the end of the GR4 GPS Receiver Cable for connection to devices such as autopilots. Connect the NMEA Out (White Wire) of the cable to the NMEA In of the device you are connecting to your Matrix Fishing System. The pinouts of this cable are as follows:
•Red Wire, +12V (output voltage only)
•Black Wire, Ground
•White Wire, NMEA Out.
CAUTION! Please use caution before connecting the red +12V wire to any other NMEA device. This is an output voltage provided by the Matrix unit and GR4 receiver and should only be connected to those NMEA devices that need a 12 volt input.
GPS Receiver Installation
To optimize performance of the GPS receiver, mount it in an area that has full exposure to the sky. The effective area of reception is 10° above the horizon.
Different circumstances determine the mounting method appropriate for your GPS receiver.
If you have… | Then use: |
An antenna stem with standard 1” – 14 thread | Stem Mount with 1" - 14 Thread |
Access under mounting location | Access Under Mounting Location |
No access under mounting location | No Access Under Mounting Location |
2 | 3 |