Sutron Corporation Satlink Operations & Maintenance Manual, Rev 8.04.2 11/3/2016 pg. 53
In order to give the user a better idea of the quality of the GPS signal, Satlink Logger provides
messages that indicate how long the GPS module was powered before a time sync was initiated.
If the last GPS sync was a part of a transmission, this number should roughly be equal to the GPS
acquire time. If the last sync was user initiated, then this number will indicate how long it took
the GPS module to acquire the signal necessary to provide an accurate time.
The Signal Quality reported by Satlink consists of a graph of the signal strength for each satellite
in view of the station. The satellite number is on the bottom of each bar and the signal strength
is the height of the bar. The signal strength is also color coded for easy recognition of how well
the satellites are being received. Note that it is natural for the signal strength to be below 40 as
satellites orbit out of view. The GPS needs at least 4 satellites to get valid time and frequency
information.
The only controls on the tab are to refresh the screen and start a new sync. Normally, Satlink will
attempt to get a time sync from GPS 10 minutes before a scheduled transmission. The sync will
happen at least once every 30 minutes. The synchronization process takes about a minute and
ensures that Satlink is ready to transmit on time. If the sync fails for any reason, the transmission
will still be able to operate for up to 30 days. In fact, just one sync in thirty days is all that Satlink
needs to operate indefinitely.
5.11.
Other Setup Tab
Various settings are displayed in the Other Setup dialog, which is accessed from the Telemetry
tab by pressing the
Other Setup
button. The settings shown include those for:
Wi-Fi
Log daily values
DCP Command
Digital Output DOUT
Optional Card Setup
Programmable Voltage References
Iridium Modem Settings
Cell Modem Settings
