16 Chapter 2 Geode Features
Geode GNS3 Real-Time Sub-Meter GPS Receiver
2.10 Antennas
Juniper Systems offers two GNS3 models, the GNS3M and
the GNS3S.
GNS3M: includes a multi-frequency antenna (L1, L2, L5) and
an option to subscribe to receive Atlas corrections.
GNS3S: includes a single frequency antenna (L1). This
configuration cannot be updated to a GNS3M multi-
frequency.
For applications involving dense canopy or other skyline
interferences, the Geode includes an external antenna
port allowing you to place an external antenna in an area
with better sky visibility. Consult Juniper Systems Technical
Support before using the Geode with an external antenna.
2.11 LED Status Indicators
There are four LED Status Indicators on the face of the
Geode.
Amber LED: Blinks when a 3D GPS fix is made (four
or more satellites) and turns solid when a DGPS fix is
made (a correction source is being applied to the
solution).
Blue LED: Solid when the Geode unit is connected
via Bluetooth wireless technology in Geode Connect.
Red LED: 1)Blinks slowly when battery is charging.
2)Solid when battery is fully charged. 3)Blinks
rapidly when battery cannot accept a charge (e.g.,
from a laptop computer that doesn’t have enough
power to charge the Geode or other faulty power
supply).
Green LED: 1)Solid when the power is turned on.
2)Blinks when the battery needs to be charged.
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