Spirent GSS7790 MulTi-ouTpuT GpS SiMulATion SySTeM The GSS7790 Multi-Output Simulation System is a uniquely powerful product offering independent access to each simulated GPS satellite signal at RF. Additional flexibility is offered as the signal is further split into its GPS L1 and L2 components, as appropriate. The GSS7790 is a full constellation simulator, offering total user control Key Features over the satellite orbital definitions with respect to the user-specified simulated location, date and time. ¢ Up to 24 channels and 2 frequencies in one unit The signal generator’s digital architecture enhances Spirent’s leading ¢ Supports GPS L1 and L2 frequencies and accuracy and reliability with exceptional fidelity and resolution across a available as a 1 or 2 frequency system wider range of test applications. ¢ Existing and future modernised GPS signals supported: Typical Applications GPS L1 supports C/A + P code + M-Noise* GPS L2 supports C/A or P code + L2C + M-Noise* ¢ Controlled Reception Pattern Antenna (CRPA) and system testing: Installation inside anechoic chamber and ¢ SA/A-S with SAASM compatibility attachment to multiple transmitting antennas to recreate (SimCLASS/SimSAAS option) and ICD-GPS-700 a simulated live environment for testing entire CRPA systems M-Code (SimMCODE option) authorised users only including the antenna element itself ¢ Complete flexibility over test scenarios using ¢ CRPA control unit testing: Integrated with multi-element phase comprehensive SimGEN software shift or delay matrix to produce RF wavefront at multiple simulated antenna elements ¢ High power level for enhanced flexibility ¢ Radiated testing: Environment emulation using reflectors and ¢ Class leading accuracy, fidelity and reliability signal attenuators to test actual antenna performance in an anechoic chamber ¢ SBAS (WAAS/EGNOS/MSAS) support at L1 ¢ Indoor GPS emulation ¢ Combined GPS output available on front panel for additional flexibility for regular receiver testing ¢ Wavefront applications Multi-Output GPS Simulation System: Spirent GSS7790 *M-Noise is a spectrally correct representation of M-Code, with arbitary data message. AES M-Code available as an option. Spirent GSS7790 MulTi-ouTpuT GpS SiMulATion SySTeM SpeCiFiCATion output Frequency Signal level at Combined RF ports ¢ GPS L1 1575.42 MHz (nominal, as appropriate) ¢ GPS L2 1227.60 MHz ¢ GPS L1 -130.0dBW ¢ GPS L2 -133.0dBW Signal Dynamics ¢ Relative Velocity ±120,000 m/s Signal level Control independent per Channel 2 ¢ Relative Acceleration ±3,600 m/s ¢ Range +20/-36dB 3 ¢ Relative Jerk ±5,000 m/s ¢ Resolution 0.1dB Signal Accuracy Signal Generator unit ¢ Pseudorange uncertainty < ±0.3m RMS ¢ Size (HxWxD generator) 353 x 450 x 530mm ¢ Pseudorange rate uncertainty < ±0.01m/s RMS (14 x 17.75 x 21inch) ¢ Interchannel bias < ±0.5m RSS ¢ Weight (Generator) 40kg (88lb) ¢ Power 100-250V ac, 600W, 48-62Hz Signal Quality product Specifications (MS3025/MS3008) are available ¢ Spurious (Max) < - 30dBc on request ¢ Harmonics (Max) < - 35dBc Performance figures and data in this document are typical and ¢ Phase Noise (Max) < 0.02 rad RMS -10 must be specifically confirmed in writing by Spirent ¢ Frequency Stability < ±5 x 10 over 1 day Communications plc. before they become applicable to any particular order or contract. RF Signal level at Main individual RF ports (nominal, as appropriate) The publication of information in this document does not imply ¢ GPS L1 -116.8dBW freedom from patent or other rights of Spirent Communications plc. ¢ GPS L2 -119.8dBW or others. For current product data, visit the Spirent websites at www.spirent.com/positioning or www.spirentfederal.com SimGEN User Interface Typical application for Spirent GSS7790, showing test piece in Anechoic Chamber SALES AND INFORMATION Spirent Communications plc, Aspen Way, Paignton, Devon TQ4 7QR, UK T: +44 1803 546325 globalsales@spirent.com www.spirent.com/positioning US Government & Defense: Spirent Federal Systems Inc. 22345 La Palma Avenue, Suite 105, Yorba Linda, CA 92887 T: +1 714 692 6565 info@spirentfederal.com www.spirentfederal.com © 2012 Spirent Communications plc. All of the company names and/or brand names and/or product names referred to in this document, in particular the name “Spirent” and its logo device, are either regis- tered trademarks or trademarks pending registration in accordance with relevant national laws. All rights reserved. Specifications subject to change without notice. MCD00151 Issue 1-02 02/12