Redlands, California-Esri recently
installed a GPS base station to assist its GIS developers and to support surveyors,
engineers, scientists and those in public works and public safety in the
community surrounding the Esri campus in Redlands,
Calif. The base station, named
GISA, has been accepted by the National Geodetic Survey (NGS) and incorporated
into the national Continuously Operating Reference Station (CORS) network.
"GPS, originally designed as a U.S. Department of Defense
system, has become part of everyday life, with the technology in all types of
devices from Smartphones to shipping containers," said Brent Jones, Esri
surveying and engineering industry manager. "The Esri GPS base station is
a great benefit to the community, as professionals can use it in surveying and
positioning to achieve accurate locations in real time."
Mounted on an Esri-owned building in Redlands, GISA operates a Trimble NetR9,
dual-frequency GPS/GNSS receiver with Zephyr Geodetic Model 2 antenna. GISA
broadcasts real-time GPS/GNSS data on the Internet in industry-standard Radio
Technical Commission for Maritime Services (RTCM) formats, which allows GPS
users to obtain real-time centimeter positions. The City of Redlands
allowed access to the Redlands
Municipal Airport
for testing of GISA. Allen Instruments and Supplies of Anaheim, Calif.,
performed a terrestrial laser scan of the GISA site to ensure that satellite
signals would not be obstructed by the built and natural environment around the
station.
GISA stores GPS and Global Navigation Satellite System (GNSS)
signals in data files on a secure Esri server accessible to the public via the
Esri websitegnss.esri.com.
Esri GPS Base Station Joins National Network
May 9, 2012
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