Novatel GPStation, Руководство пользователя, Страница: 9 / 38

1 – Introduction
GPStation™ User Manual 1
1 INTRODUCTION
The NovAtel GPStation is a high-performance, reliable GPS receiver with a built-in high-stability oscillator. As such, it
is intended for use as a differential GPS base station as well as other demanding positioning applications.
The GPStation is intended to be used with the following NovAtel accessories:
•
Model 501 GPSAntenna
•
Model A030 Choke-ring Ground Plane - to reduce the effects of multipath reception
•
Model C005, C015, or C030 (5, 15 or 30 m length) coaxial cable - to connect the GPSAntenna to the GPStation
After the addition of these accessories, together with user-supplied data communications equipment and a power supply,
the GPStation will be ready for use.
FEATURES
The GPStation includes the following features:
•
GPS receiver
•
rugged, water and dust-resistant enclosure (see Figure 1)
•
modified NovAtel OEM2 GPSCard with GPStation software
•
two serial communication ports and a strobe port
•
high-stability Oven-Controlled Crystal Oscillator (OCXO)
•
one straight and one null-modem serial-data cable
•
one I/O strobe cable
•
an AC/DC converter, and power cables
•
NovAtel WinSat graphical user interface software and user manual
Figure 1 Photograph of GPStation
The GPStation features a 12-channel, parallel tracking, C/A (Coarse Acquisition) code GPS receiver operating on the L1
(1575.42 MHz) frequency. Each dedicated channel independently tracks the code and carrier phase of a GPS satellite in
view. The GPStation incorporates NovAtel’s patented Narrow Correlator technology that achieves pseudorange accuracy
with near P-code performance and provides the industry’s most robust resistance against errors introduced by multipath
signals. The improved pseudorange accuracy reduces the time required for ambiguity resolution when carrier phase
measurements are being made and substantially improves the receiver’s performance in differential mode. The custom-