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7
TriPad
The TriPad is the receiver’s minimum interface used
to display and control data input and output.
Figure 3.
DELTA TriPad
The STAT (status) LED displays the number of
tracked satellites.
• Green – eight and more satellites.
•
Yellow – five to seven satellites.
•
Red – less than five satellites.
• No light – no satellites.
Effective number of satellites are total number of sat-
ellites tracked minus the number of non-GPS systems
tracked. E.g. if 8 GPS and 5 GLONASS are tracked the
effective number of satellites is 12.
The REC (record) LED displays the data recording
status and blinks on each recording.
• Green – recording data.
• Yellow – less than 10 min memory left.
• Red – memory is full.
• No light - not active.
The On/Off (power) button turns the receiver on and
off.
The FN button starts/stops data recording.
Data and power ports
The DELTA receiver can be equipped according us-
ers needs and have different ports on the front and back
panels.
Below are presented some examples of possible con-
figurations:
Figure 4.
DELTA Ports
• Power – used to connect the receiver to an exter-
nal power source. This port can also be used to
charge the batteries.
• Serial – used for communication between the re-
ceiver and an external device.
• Ethernet - used to connect the receiver to local
network.
• USB –used for high-speed data transfer and com-
munication between the receiver and an external
device.
The DELTA-3N receiver can be equipped according
users need and have different connectors on the back
panel. Below are presented some examples of possible
configurations:
• The external GNSS antenna connects to the TNC
external antenna connector (optional)
• The 1PPS and Event marker BNC connectors (up
to two) (optional)
• External Frequency Input/Output BNC connec-
tor (optional)
Turning On/Off
To turn ON the receiver, press and hold the power
button until the LEDs briefly flash. To turn OFF the re
-
ceiver, press and hold the power button for more than
one and less than four seconds (until both the SAT and
the REC LEDs are off). This delay (about 1 second)
will prevent the receiver from being turned off by mis-
take.
DELTA-3N saves the last power status and restore it
after voltage loss.
Power supply requirements
The socket-outlet shall be installed near the equip-
ment and shall be easily accessible.
