Using Auto Chart Pro in the "On the water" mode aka Live mode
Connected to the boat electronics via Ethernet cable PC running Auto Chart
Settings > Tools > Nema/Ethernet setup
NMEA is turned off
Ethernet selection options
GPS - The selection box clearly shows my two Helix units to choose from
SONAR - the selection box is completely blank
SONAR SI - again the selection box is completely blank
Thus no SONAR data
What am I doing wrong?