Linking two units through NMEA 0183 to share a GPS module
This does not allow waypoint sharing
After you have the units wired as per diagram you will need set up nmea0183 in each unit. Here's how: locate "Communications Port" in the menu. Depending on which unit it is this is usually located in 2nd menu under System Setup. Some older units may be different.
The unit that has the gps module connected to it is referred to as the "host unit"
Enter communications port of host unit (antenna unit) and set unit to send NMEA0183 or sometimes called GPS out
Enter communications port of receiving unit and set this unit to receive NMEA0183
The host unit must always be turned on to use gps on the receiving unit.
