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Sutron Corporation Satlink Operations & Maintenance Manual, Rev 8.04.2 11/3/2016 pg. 100
10.2.
Environmental Scheduled Transmissions
This section describes Environmental Satellite Scheduled transmissions. Scheduled transmissions
happen periodically at a fixed time.
TX1 setup is reserved for scheduled transmissions using an environmental satellite. Additional
scheduled transmissions may be setup on TX3 and TX4.
Satlink is certified to operate with NESDIS, EUMETSAT, INSAT and other agencies who operate
their respective satellite systems. The governing agency will assign to each transmitter a unique
Satellite ID, channel (and associated type) and scheduled time and interval. The combination of
these settings is unique to each field station.
Warning: Any errors entering the information may cause the transmitter to interfere with other
stations in the field.
10.2.1.
Tx Enable
Enables scheduled (sometimes called self-timed) transmissions. If this setting is enabled, Satlink
will periodically deliver sensor data to the designated destination. If disabled, Satlink will not
initiate any scheduled transmissions.
10.2.2.
Transmission Schedule
The governing agency will assign a specific transmission time and interval for scheduled
transmissions. Enter the assigned schedule via the Scheduled Time, Scheduled Interval, and
Window Length settings.
For example, a station may be assigned to transmit on GOES 300 baud channel 195 at a time of
00:02:30, an interval of 04:00:00 and the time slot is 30 seconds long. That means the
transmitter is allowed to transmit at 00:02:30, 04:02:30 …20:02:30 and transmissions are to last
no more than 30 seconds. In that case, setup
Scheduled Time: 00:02:30
Scheduled Interval: 04:00:00
Window Length: 00:00:30
Please note that all scheduled times are related to UTC.
Any transmission outside the assigned time, either early or late may interfere with other field
stations.
Any transmission longer than the assigned window length will be truncated to the window
length.