Section 2 - Introduction
05/01/97 REV H
PAGE 3
Section 2 - Introduction
2.1 Overview
Northstar’s family of position sensors, comprised of models 8700, the
8800 series, and the 8900 series, features self-contained, 12-channel GPS
modules with two-channel, automatic, medium-frequency radio-beacon
receivers, packaged in rugged “black box” aluminum enclosures.
These high-performance units provide reliable GPS and/or DGPS posi-
tioning for the following applications:
•
Custom OEM systems requiring superior, “all-in-view” GPS perfor-
mance
•
Automatic vehicle location (AVL) and monitoring systems, including
railroads, highways, emergency, public transportation, and trucking
•
Mobile ground information systems (GIS) data acquisition, including
asset management and mapping
•
Precision agriculture, including yield mapping, yield monitoring, and
sampling
•
Forestry, including aerial spraying, planting, and forest mapping
•
Surveying/mapping, including aerial, highway, and legal surveys;
utility mapping
•
Marine navigation
2.1.1 Northstar
8700
The Northstar 8700 is a 12-parallel-channel, DGPS-ready, fast-acquisition
GPS receiver that continuously tracks all available satellites. The 8700
accepts DGPS corrections from any source of Radio Technical Commis-
sion for Maritime Services (RTCM) SC-104 data. See Section 4, “GPS
Receivers,” for complete information about the Northstar 8700.
2.1.2 Northstar
8800 series
The Northstar 8800 series (comprised of either the 8800 or the 8801, an
8800 bundled for agricultural applications) is a two-channel, auto-tuning,
Minimum Shift Keying (MSK) radio-beacon receiver, also known as a bea-
con demodulator, or BDM, which supplies fully automatic differential
corrections for an external DGPS-ready receiver. While the 8800 series’
Channel 1 processes real-time corrections, Channel 2 automatically
searches for alternates. The 8800 series works worldwide with beacons
that conform to the SC-104 specification.
See Section 5, “Beacon Receivers” for complete information about the
Northstar 8800 series.
2.1.3 Northstar
8900 series
Northstar combines the 8700 and the 8800 to form the Northstar 8900
series of sensors, which provide optimum performance in self-contained,
fully automatic DGPS units. See Section 6, “GPS/Beacon Combination
Receivers” for complete information about the Northstar 8900 series.
Summary of Contents for 8700
Page 2: ......
Page 10: ......
Page 16: ...Section 2 Introduction PAGE 6 05 01 97 REV H ...
Page 20: ...Section 3 Packaging PAGE 10 05 01 97 REV H ...
Page 32: ...Section 6 GPS beacon combination receivers PAGE 22 05 01 97 REV H ...
Page 46: ...Section 8 Input output configurations PAGE 36 05 01 97 REV H ...
Page 52: ...Section 9 Connector pinouts PAGE 42 05 01 97 REV H ...
Page 76: ...Section 12 8X00 engine monitor program PAGE 66 05 01 97 REV H ...
Page 78: ...Section 13 Glossary PAGE 68 05 01 97 REV H ...
Page 80: ...Section 14 Abbreviations and initialisms PAGE 70 05 01 97 REV H ...
Page 85: ...Index 05 01 97 REV H PAGE 75 ...