Juniper Archer 2 Owner's Manual page 60

GPS Intermediate Driver
GPS Receiver Access for Multiple Programs
The GPS Intermediate Driver (GPSID) is used to allow more
than one program to use data from the GPS receiver. The
GPS Settings control panel controls how the GPSID is used.
Internal GPS is on COM8 and communicates at 115200
baud. These settings are found on the Hardware screen of
the GPS Settings control panel. If another GPS receiver is to
be used, this is where you connect that GPS receiver so that
the GPSID can access it.
The GPSID can output data on another COM port in a way
that allows multiple programs to access the same COM
port. This is called the Program Port and defaults to COM2.
This can be set up on the Programs screen of the GPS
Settings control panel.
The camera, GPS function and GPS compass function use
the GPSID to obtain GPS information. Turning off the GPSID
through the GPS hardware port disables these functions.
Note: If an application accesses the GPS module directly
on COM8, the GPSID will not have access to the GPS.
This prevents the camera geotagging and GPS from
functioning.
GPS Accuracy
The GPS antenna is in the top of the Archer 2. Do not put your
hand or another object over the cap. This reduces accuracy.
The more items between you and the satellites, the lower the
accuracy is.
GPS Nav
GPS Nav is a simple navigation tool. You can set a waypoint
and navigate back to that location. To use the compass, tap
on the compass gadget. This activates the GPS function
if it is not already on. Wait until you have a fix.
Note: You need to move in a line to get direction
information.
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Archer 2 Rugged Handheld Owner's Manual