Sr-24 Gps - RIDGID SeekTech SR-20 Operator's Manual

SR-24 GPS

The following section applies to the SR-24 only.
The SR‑24 has an internal GPS receiver that provides
location data to the receiver� The GPS data is stored on
the SD card and can be logged to a Bluetooth device
through a Bluetooth connection�
Note: Refer to the Data Logging section for instructions
on how to export data log files to your computer.
The SR‑24 is compatible with Bluetooth 2�0 devices
including many phones, tablets, and GPS units� Refer
to www�RIDGID�com/SR24 for a list some models that
have been tested to work with the SR‑24�
GPS Accuracy
GPS accuracy is measured in a variety of different
ways, all are statistical in nature� According to the doc‑
umentation supplied by the manufacturer of the inter‑
nal SiRFstarIV GPS module, its nominal accuracy is
"< 2�5 m (65 percent, 24 hour static, ‑130 dBm)�" This
indicates that under ideal conditions, the GPS receiv‑
er is capable of accuracy such that each point collect‑
ed would have a 65 percent chance of being inside a
circle with a 2�5 m [8�2 ft] radius extending from the true
location� It is able to do this under ideal conditions with
a strong signal (‑ 130 dBm) over a 24 hour test, during
which the GPS unit is not moving�
The actual accuracy of a GPS device is highly variable
and based on many factors such as obstacles in the
physical environment, atmospheric conditions, and the
quality of the GPS satellite constellation�
The GPS icon displayed on screen indicates the status
of the position fix� The GPS Status icon
the GPS is searching for a position solution� When the
SR‑24 GPS finds a position solution, the GPS Estimated
Positional Error icon, for example
SR‑24 screen to indicate the SiRFstarIV's position lock
status and to provide an estimated positional error�
The estimated positional error indicates that a given
solution is within the stated accuracy, approximately 65
percent of the time� In the following example, 65 percent
of the solutions would be within a circle with a 4 m [13 ft]
radius� For example, the following graphic shows the
SiRFstarIV's actual position is inside the circle, 65 per‑
cent of the time�
Using the SR-24 with External GPS Software
The SR‑24 can communicate the SIG, GPS, or LCD
data it collects to external GPS mapping devices and
GIS software� To interpret the SR‑24's data, the exter‑
nal GPS software and the SR‑24 must be connected
through Bluetooth and the GPS software must be able to
interpret data from a Bluetooth source�
Note: For specifications on external GPS software accu-
racy, consult the external GPS vendor.
indicates that
, appears on the
×
[13 ft]
Reported Position
Estimated Positional Error
4 m
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