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Sutron Corporation Satlink Operations & Maintenance Manual, Rev 8.04.2 11/3/2016 pg. 108
Please make sure to read the section
for additional information.
A lot of the telemetry settings for cell are similar to those for Iridium and Environmental
Satellites.
Some of the Cell settings are found on the Telemetry tab and are specific to a single telemetry
setup. Additional settings are found on the Other Setup tab of LinkComm; those are global
settings.
10.5.1.
Radio Type
Choose Cell as the Radio type of the transmission you are setting up. TX1 and TX2 cannot be
setup for cell telemetry; TX3 and above can do cell telemetry.
10.5.2.
Kind
Iridium supports two kinds of transmissions:
Scheduled
Alarm
10.5.2.1.
Cell Scheduled
Cell Scheduled transmissions are much like Iridium and Environmental Satellite Scheduled
transmissions: Settings Scheduled Time and Scheduled Interval are used to determine when and
how often transmissions occur. However, the choice of when to transmit is entirely up to the
user. The Cell network is a commercial network and customers pay for bandwidth.
Unlike Environmental Satellite Scheduled transmissions, Cell transmission do not happen at the
exact time that they were scheduled for. Instead, the modem is turned on at the scheduled
time. It takes the modem a little while (usually under a minute) to acquire a connection with cell
network and complete a data transfer.
10.5.2.2.
Cell Alarm
When setup for Alarm transmissions, Satlink will send data as the station goes into and out of
alarms.
When the station enters alarms, a transmission will be sent. The measurement that went into
alarms should be configured with the Tx Data Content set to Last in order to make sure that the
reading that caused the alarms is transmitted.
10.5.2.3.
Alarm Interval
This setting is relevant to Alarm transmissions only. If not zero, Satlink will repeat transmission
at the Alarm Interval for as long as the station is in alarm.
Additionally, if not zero, the Alarm Interval dictates the minimum time between transmissions. If
set to one hour, Alarm transmissions will not happen more than once an hour no matter how
often the station goes into alarms.