Rebel- Menu>Settings>GPS Settings>SBAS Settings
STX- GPS icon (button)>Setup tab at top>SBAS with blue PRN button towards the bottom left of the screen. Use arrow buttons to change.
S-Lite-Menu>Service Menu>SBAS Satellite (hit “Enter” and use arrow buttons to change)
S2-Same as the S-Lite
S-It is set to “Auto” and no way to change it