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| Products>>Global Navigation Satellite Systems>>GNSS OEM Boards>> |
| >>GG24-E2 GPS Board |
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GPS & GLONASS Seamless Integration
With the addition of GLONASS to its leading GPS technology, Magellan has expanded the availability, integrity
and accuracy of global positioning tools. The GG24-E2GPS board adds another satellite constellation,
GLONASS (the Russian equivalent to GPS), to the solution for precise positioning. The GG24-E2 is the first
all-in-view GPS+GLONASS receiver. Its revolutionary design allows smooth integration into a wide range of
positioning applications on land, sea or in the air. Incorporating the GG24-E2 is simple because of our
advanced patented methods to blend GPS and GLONASS into a single navigation position solution or RTK
position solution. The sophisticated combination of the technologies is transparent to the user. The GG24-E2
is capable of tracking negative frequency GLONASS channels and uses all available satellites from both
systems to obtain the best position information. The GG24-E2 GPS and GLONASS RF sections are
independent, so any interference on the GLONASS frequencies will not affect GPS, and vice-versa.
Increased Availability
One of the primary advantages of GPS+GLONASS is the increased number of satellities from the combined
constellations available for position computation. Thus, GPS+GLONASS is extremely beneficial in obstructed
operating environments, such as in cities around buildings, mountainous areas, under tree cover, or other
areas where much of the sky and many of the satellites can be blocked. To take advantage of the increased
satellite availability, the GG24-E2 from Magellan has 12 channels for L1 GPS and 12 channels for L1
GLONASS, providing all-in-view tracking for both constellations.
Improved Integrity
By using GPS+GLONASS, users benefit from the integrity of two independently operated satellite positioning
systems. With more satellites available, the constellation geometry is significantly improved, providing users
with added confidence in the accuracy of the positioning solutions.
Windows Evaluation Software
Evaluate software is available with the GG24-E2 and provides visual displays of satellite information (e.g.,
SNR), receiver position and velocity, as well as data logging and analysis. It also allows direct communication
with the receiver. Compatible with most of our receivers, the software runs on Windows version 3.x, Windows
95/98, NT, 2000, and XP platforms. |
- Features
- GPS or GLONASS or
GPS+GLONASS configurations
- High performance and
reliability
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Technical Specifications |
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Real-Time Position Accuracy1 |
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- Autonomous2
- Differential
- Velocity Accuracy1 (knots)
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3.2 m (10.50 ft) CEP
40.0 cm (15.75 in) CEP
0.1 (95%) |
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GG24-E2 Standard Features |
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- 12 channels L1 GPS code & carrier
- 12 channels L1 GLONASS code & carrier
- Raw data output (code and carrier)
- Strobe Correlator multipath mitigation
- 30-second warm start (typical)
- 40-second cold start (typical)
- 2 second re-acquisition time
(dynamic independent)
- Geoid and Magnetic Variation models
- Standard NMEA-0183 V2.01 output
- 1PPS timing signal (5V TTL)
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Precision |
45 ns (differential)
70 ns (stand-alone) |
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- User-selectable standard datums
- User-definable datum
- Speed (Max): 514 m/sec (1,000 knots)
- Altitude (Max): 18287 m (60,000 ft)
- RTK (add-on option)
- Differential Remote RTCM V2.2 Message
Types 1,2,3,6,9,16, and 31,32,34,37
(from future V2.2)
- User selectable position and raw data update rate up to 5Hz
- 10Gs tracking capability
- Event Marker
- Programmable Measurement Strobe
- Differential GPS Reference Station RTCM V2.1
Message Types 1,2,3,6,9,16, and 31,32,34,37
(from future V2.2)
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Communications |
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- 2 bi-directional RS232 serial ports
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Antenna |
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- Each GG24-E2 receiver uses one antenna to
receive both GPS and GLONASS signals. The
antenna connects through a single antenna port
on the GG24-E2 receiver.
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GG24-E2 Eurocard |
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-30°C to +70°C
(-22°F to 158°F) |
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-40°C to +85°C
(-40°F to 185°F) |
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2.3W (receiver)
0.3W (typ. antenna) |
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5VDC ±5%
100mV p-p ripple |
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500 gr
(8 oz) |
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10 cm x 16.7 cm
(3.94 in x 6.58 in) |
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| Notes |
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1. |
Accuracy and TTFF specs. based on tests conducted in
California. Differential tests performed using Z-Sensor
base station with Geodetic antenna and GG24-E2 GPS
Board remote with Geodetic antenna (Marine IV antenna
for TTFF). Antenna benchmark locations determined
using CORS sites Point Blunt (PBL1) and Pigeon Point
(PPT1). Tests at different locations under different
conditions may produce different results.
Position accuracy specifications are for horizontal
positioning. Vertical error is typically <2 times
horizontal error. |
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2. |
Real-time position accuracies obtained with SA off. With
SA on, accuracy of autonomous positioning may degrade
up to 100 meters (95%) as specified by the U.S.
Department of Defense. |
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PRODUCT BRIEFS |
| Specification Datasheet |
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| Manuals |
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| Software |
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COMPANY INFORMATION |
| Telphone |
+86-10-8857 0030 |
| Fax |
+86-10-8857 0162 |
| E-Mail |
sales@vibtel.com |
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