Sutron Corporation Satlink Operations & Maintenance Manual, Rev 8.04.2 11/3/2016 pg. 105
transmissions in the burst is controlled by the setting
Number of Txs per Burst
. The default
value is three, meaning Satlink will fire off three transmissions once the station goes into alarms.
Burst Interval
is a setting that controls approximately how much time passes between the
transmissions. The transmission time is slightly randomized. The default value is 2 minutes.
After the burst transmissions are completed, if the station remains in alarm, Satlink will fire off a
random transmission every
Alarm Interval
. The intention is to keep notifying the customer
about the current alarm state. The default value is once an hour.
Random transmissions may be sent even when the system is not in alarms. If the
Scheduled
Interval
setting is not zero, Satlink will send a random transmission every interval. These
transmissions are called
‘random normal’
. The first random normal transmission will happen
roughly Scheduled Interval time after recording is turned on or after the station is powered on.
Random normal transmissions may be completely disabled by setting the
Scheduled Interval
to
zero.
TX2 random transmissions share the Satellite ID and Antenna Option with TX1 scheduled
transmissions setup. The same ID and Antenna should be selected for TX1 and TX2.
Random transmissions should be kept as short as possible. To that end, Pseudobinary B is the
only format available.
10.4.
Iridium Setup
Satlink may be equipped with an optional Iridium modem. If such hardware is available, Satlink
can be setup to make scheduled and alarm transmissions via the Iridium modem.
Additionally, Satlink can receive messages via the Iridium modem. These messages can be used
to check station status, change station setup, request re-transmissions of logged data, and more.
Iridium messages are limited in bandwidth and are time delayed. Email is generally used to send
commands to Satlink via Iridium. LinkComm cannot be used to send messages via Iridium.
section for more details on Iridium.
Some of the Iridium settings are found on the Telemetry tab and are specific to a single telemetry
setup. Additional Iridium settings are found on the Other Setup tab of LinkComm; those are
global settings.
10.4.1.
Radio Type
Choose Iridium as the Radio type of the transmission you are setting up. TX1 and TX2 cannot be
setup for Iridium telemetry; TX3 and above can.
10.4.2.
Kind
Iridium supports two kinds of transmissions:
Scheduled
Alarm
