Apollo-X User Manual Version 0.9
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Apollo-X Timer Modes
Normal Mode (Timer 0)
Timer zero is the default timer mode of the Apollo-X and will be used if no other modes below
apply. At default settings, the Apollo-X will transmit one position every hour. The Apollo-X will
continue in normal mode uninterrupted until some event prompts another mode, or the device
is turned off.
Start-up Mode (Timer 1)
Start-up
mode will begin when the Apollo-X is powered on or reset via any method. This mode
will last for a maximum of one hour, but can be interrupted by another mode (ex. Underwater).
Surfaced Mode (Timer 2)
Surfaced mode begins after the Apollo-X has exited Underwater mode, sending a message
indicating that it has surfaced. The Apollo-X then transmits one position every ten minutes for
one hour. Once this mode has finished, the device will enter Normal mode unless another
event is queued (ex. Low Battery).
Underwater Mode (Timer 3)
If the Apollo-X is unable to transmit successfully and fails to connect to the Iridium network
after three attempts (tasks),
and
has detected with its water sensor that it is submerged, it will
enter Underwater mode.
Once in underwater mode, the Apollo-X
’s GPS
does not run, and the Iridium transmit interval is
set to attempt a connection once per day at midnight UTC. The water sense will also take a
reading every minute to detect a surfacing event. The light sensor does not run in Underwater
mode.
While in Underwater mode, if the water sense detects that the Apollo-X has surfaced, an
Iridium session will be queued and attempted. If the Apollo-X successfully connects to the
Iridium network, the Apollo-X will exit Underwater mode and enter Surfaced mode.
The Apollo-X will always exit underwater mode if it successfully connects to the Iridium
network. Since the Apollo-X requires three consecutive failed Iridium transmissions to enter this
mode, it can take several hours depending on the Apollo-X
’s Iridium transmission rate.
Low Battery Mode (Timer 4)
The Apollo-X
will enter Low Battery mode if the device’s voltage drops below
the set threshold.
This is triggered by two consecutive Iridium sessions with a minimum
loaded
battery voltage
less than the threshold. This threshold depends on the product type, but can also be adjusted:
Apollo-X7
7.5 VDC
Apollo-X3
8 VDC
Apollo-X1
2.4 VDC