The Message Sending light notifies you whether or not your most recent message was transmitted.
If it is flashing green: The Message Sending light blinks green after SPOT transmits the most recent message.
If it is flashing red: The Message Sending light blinks red if SPOT didn’t send the most recent message.
The Message Sending Light will continue to blink as appropriate for each function – until the next
scheduled message (Track Progress, Help/SPOT Assist, SOS) and/or until one (1) hour after the
message cycle is complete (Check-In/OK, Custom Message, Track Progress, Help/SPOT Assist).