In the System menu the Startup option can be set to the following values:

do nothing	Do nothing after normal startup.
set GPS time	Set GPS time after decoder has booted.
GPS time & activate	Set GPS time and activate operation mode after decoder has booted.
GPS time, activate & upload	Set GPS time, activate operation mode and upload (with current settings) after decoder has booted.
GPS time & upload	Set GPS time and start upload (with current settings) after decoder has booted.