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Very Small Aperture Terminal (VSAT) Satellite Communications System Project [his... [Article]
Very Small Aperture Terminal (VSAT) Satellite Communications System
The Very Small Aperature Terminal (VSAT) Satellite Communications System is a joint project between scientific and t
Ashtech - Time-Tag Errors in Ashtech L2-Codeless Receivers (Early 1990’s Data) [Article]
Time-Tag Errors in Ashtech L2-Codeless Receivers (Early 1990’s Data)
Information from Bob King at MIT
In the course of analyzing survey-mode data acquired between 1991
Ashtech Micro-Z Interface Protocol Quick Reference [Article]
Ashtech Micro-Z Interface Protocol Quick Reference
System Default Settings
Serial port baud rate: 9600, 8, N, 1
Clock steering: Enabled
Raw data output rate: 20
Ashtech Micro-Z and Z-12 Resource Page [Article]
Ashtech Micro-Z, ICGRS, and Z-12 Resource Page
FAQ: UNAVCO Facility Support of Community Science Investigations [Article]
The following FAQs are presented for reference for new UNAVCO PIs to provide an overview
UNAVCO Resources: GNSS Receivers [Article]
UNAVCO Resources: GNSS Receivers
[Current as of September 2009.]
The following receivers are, or have been at one time, supported by UNAVCO and/or are available at sp
Equipment Power Usage Testing [Article]
Equipment Power Usage Testing
The following power tests were conducted on GPS receivers, GPS antennas, and select communications devices using an A-D device on a computer, using LabView
Power - Wind Power Testing at UNAVCO through 2005, Phase 1 [Article]
Wind Power Testing at UNAVCO through 2005, Phase 1
The purpose of phase one of the wind generator testing is to become familiar with the general setup and power characteristics of the sy
General Equipment - Equipment List with Vendor Information [Article]
GNSS Equipment List with Vendor Information
The following list contains standard ancillary equipment
that the UNAVCO Facility recommends for GNSS equipment installations and project sup
Ashtech and Trimble Choke Ring SNR Analysis (2001) [Article]
Ashtech and Trimble Choke Ring SNR Analysis
Mike Jackson Ph.D.
UNAVCO Network Operations Manager
3340 Mitchell Lane, Boulder CO 80301
Choke Ring Antenna Calibrations [Article]
Choke Ring Antenna Calibrations
Pictured above from left
GNSS Receiver and Antenna Power Compatibilities [Article]
GNSS Receiver and Antenna Power Compatibilities
Receiver Output Bias Voltages
wo/antenna w/antenna Trimble 4000SSE 8.35V
GPS Receiver and Antenna Testing Report for SuomiNet (2000) [Article]
GPS Receiver and Antenna Testing Report for SuomiNet
Mike Jackson, Chuck Meertens, Victoria Andreatta, Teresa Van Hove
University NAVSTAR Consortium, Boulder, Colorado
Ashtech and Pacific Crest cable diagrams [Article]
Ashtech cable diagrams
The attached files (see below) contain publicly-released diagrams of Ashtech and Pacific Crest cables.
UNAVCO Resources: Cables and Connectors [Article]
Cables and Connectors
A multitude of cables and connectors are needed for GNSS installations, whether for permanent or campaign sites. Generally, for campaign sites, the cables used are
UNAVCO Resources: GNSS Antennas [Article]
UNAVCO Resources: GNSS Antennas
Dual frequency (L1/L2) Choke Ring Antennas provide geodetic-quality GNSS measurements for surveying, mapping, and research applications. Typical dual-freq
Trimble R7/5700 Resource Page [Article]
Trimble R7/5700 Resource Page
UNAVCO Resources: Engineering How-tos [Article]
UNAVCO Resources: Engineering How-tos
Note that the some of the equipment addressed in the how-tos below is no longer supported by UNAVCO.
GPS Receivers and Related
Permanent GNSS/GPS Station Planning: Technology, Equipment, Costs [Article]
Permanent GNSS/GPS Station Planning: Technology, Equipment, Costs
UNAVCO Resources: Meteorological Systems [Article]
UNAVCO Resources: Meteorological Systems
General Resources
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