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13.1.4
Sending Messages to the Station via Iridium
Stations with Iridium modems can have messages sent to it via emails that get routed through the Iridium
system.
If
Listening
is enabled, the station receives messages immediately. In this mode, the modem is always on,
and the station consumes more power.
If
Listening
is disabled, the system checks for messages when it makes a transmission. If the station is set
up with a
Tx Interval
of 15 minutes, it may take up to 15 minutes for the station to receive the message
sent to it. With
Listening
disabled, the station turns off the modem between transmissions to save power.
Additionally, the station can be setup to do periodic message checking. No matter how it is setup, the
station will do a message check every 24 hours. Please see section
for more on
Listening and Message Checking.
When the station is turned on, it keeps the Iridium modem on for ten minutes. During that time, it will
receive messages immediately. When it does receive a message, the station will keep the modem turned
on for ten additional minutes to facilitate additional message conversations.
Messages are treated like command line input with a few differences. Some commands cannot be
executed via a message (e.g. log download). Other commands may have a differently formatted output (in
order to reduce message size).
Do not forget to precede the commands with an exclamation point if you want the
station to reply.
To check the status of your station, send it the message
!STATUS
Password protected stations will need login information to be the very first thing in a message:
!LOGIN=XXX; STATUS
The system remembers the last message received since boot up. To see it, press the Radio Diags button on
LinkComm's Telemetry tab or issue the STATUS TX command.
Email is used to send messages to the station via Iridium.
The email message must be sent to [email protected]
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