GPS/SBAS Signal Generator
GSS4100
Spirent
Communications
GSS
4050 Sandshell Drive
Fort Worth
Texas 76137
USA
Telephone:
(817) 847 7311
Fax:
(817) 847 7235
Email: sales-usa@
spirentcom.com
Features
The GSS4100 GPS/SBAS Simulator is a complete, low-cost
Single-Channel RF generator for testing satellite navigation
equipment, especially in a manufacturing environment, in
the laboratory or in the field.
The GSS4100 generates either a GPS L1 C/A code signal or
a Space Based Augmentation System (SBAS) signal
(WAAS/EGNOS/MSAS).
Standard IEEE-488 (GPIB) and USB interfaces provide the
mechanism for integrating the GSS4100 into a user’s test
environment. The GSS4100 also supports synchronization
to other systems via its 1PPS / Trigger and Frequency
Standard inputs and its 1PPS output.
Control is provided over all aspects of the signal generated,
including PRN, power level, Doppler, time of the simulation
and signal/message content. This capability is accessed
either in a stand-alone interactive mode, using the
supplied SimCHAN software for Microsoft
USB, or in a fully integrated ATE mode via the documented
GPIB control interface.
®
Windows®via
Typical applications include GPS and Wireless Location
production test ATE, fault analysis, parametric evaluation,
and prototype transmitters.
Highlights
■
Supports both GPS and SBAS signals in a single
package
■
Full control over signal content and dynamics
■
Integrated ATE and stand-alone instrument modes
■
Fully user-definable data messages using SimCHAN
software
■
Stable and accurate all-digital FPGA architecture
■
Industry-standard GPIB
(compatible with STR4775 product)
■
Low cost
■
Rack mount kit available
Spirent
Communications
GSS
Aspen Way
Paignton
Devon TQ4 7QR
England
Telephone:
+44 (0)1803 546300
Fax:
+44 (0)1803 546301
Email: sales-uk@
spirentcom.com
GPS/SBAS Signal Generator: GSS4100
Spirent
Communications
GSS
4050 Sandshell Drive
Fort Worth
Texas 76137
USA
Telephone:
(817) 847 7311
Fax:
(817) 847 7235
Email: sales-usa@
spirentcom.com
Specification
Output Frequency
■
Nominal L1 @ 1575.42 MHz
■
Doppler Range ± 15,000 m/s
■
Stability <5 x 10
May also be frequency locked to an
external standard of 1, 5 or 10 MHz
Signal Quality
■
Spurious(in GPS band) <-30 dBc
■
Carrier Phase Noise 0.1 rad RMS typical integrated,
Signal Level
■
Nominal -130 dBm
■
Range ± 20 dB
■
Resolution 0.1 dB
Signal Content
■
Ranging Code PRN 1-37 GPS
■
Data message 50 bps for GPS
(Content user definable) 250 bps for SBAS,
-10
per day
-8
<1 x 10
over temperature
range
10 Hz to 10 kHz offset
(Front panel RF connector)
-70 dBm
(Rear panel RF
connector-typical)
PRN 120-138 SBAS
(All 1023 G1/G2 codes
supported)
On/Off control
with FEC to 500 sps
Connections
■
RF Output Type N female co-axial (Front)
Type SMA female co-axial (Rear)
■
External Standard In BNC female co-axia
■
External Trigger In BNC female co-axial
■
Internal 10MHz Out BNC female
co-axial
■
Other Signals available 15-way ‘D’ connector
(1PPS in/out, Chip Clock, Range
Code, Navigation Data bits,
Code epochs)
Size
■
(HxWxD overall) 99x254x345mm
(3.9" x 10" x 13.6")
Weight
■
5-kg (11lb) approx.
Product Specification (MS 2997) is available on request
Performance figures and data in this document must be
specifically confirmed in writing by Spirent
Communications (SW) Ltd or its affiliates before they
become applicable to any particular order or contract.
The publication of information in this document does not
imply freedom from patent or other rights of Spirent
Communications (SW) Ltd or others.
For current product data visit the GSS website at
www. spirentcom.com
Spirent
Communications
GSS
Aspen Way
Paignton
Devon TQ4 7QR
England
Telephone:
+44 (0)1803 546300
Fax:
+44 (0)1803 546301
Email: sales-uk@
spirentcom.com
©2001 Spirent Communications, Inc. All rights reserved. Specifications subject to change without notice.
Spirent Communications and the Spirent logo are trademarks of Spirent plc. All other names are trademarks
or registered trademarks of their respective owners and are hereby acknowledged.
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