Transmit Option on the Garmin GPS Skyview Page

With the release of software version 21.00, a setting was introduced that allows a user to determine which GPS Sources they want to be actively broadcasting on the NMEA 2000 Network. Ultimately, it’s a way to cut down on NMEA 2000 traffic that the Source option doesn’t provide.

To access the setting, select Home > Settings > System > GPS > Transmit.

GPSMAP Series

This series will have the Auto and Manual setting for Transmit.

• Auto – Any devices that are set to Auto will choose a single available built-in GPS source and agree to only utilize that one. Whichever devices are not chosen as the sole GPS source will not provide their GPS data to the NMEA 2000 network

• Manual – Use this setting to allow specific devices to broadcast their GPS information on the NMEA 2000 network. Setting to Manual will provide the user with a Manual Transmit option that offers an ON/OFF toggle

  • Scenario: A vessel has a port, center, and starboard multifunctional device and the desire is to have all three displays specifically utilize the built-in GPS of the center multifunctional device

  • Solution: To accomplish this, set all three devices to Manual Transmit, then toggle Manual Transmit on the port and starboard display to OFF followed by a toggle of the center display to ON

ECHOMAP UHD and Ultra Series

This series will only have a Transmit option with an ON/OFF toggle.

• Scenario: A vessel has two ECHOMAP Ultra devices and the desire is to only broadcast the GPS of the starboard display on the NMEA 2000 network

• Solution: Set the Transmit option of the Port display to OFF

  • If the transmit option is missing from the menu, it’s because the display being viewed has its source set to the built-in GPS of the second display