Spirent GSS7765 Interference SImulatIon SyStem The GSS7765 Interference Simulation System, when combined with one of Spirent’s GNSS satellite constellation simulators, offers a comprehensive solution for testing satellite navigation equipment in the presence of intentional or unintentional RF interference. The GSS7765 package comprises one or more high quality commercial Key features signal generators plus an Interference Combination Unit (ICU). The TM TM package is supported by Spirent’s SimGEN software suite. ¢ Fully supported in SimGEN scenarios ¢ Full control over interference signal content and The GSS7765 offers a very broad range of interfering signal options, which dynamics may be used to represent a varied array of threat sources. Interference signals available include Continuous Wave (CW), AM, FM, some of which ¢ Wide range of interference types may be pulsed. The generator also supports noise generation with variable bandwidth. ¢ Large power and frequency range The GSS7765 can be configured to support up to 4 fully independent ¢ Modelled and static operating modes interference sources by the addition of extra generators to the single- ¢ Interactive mode enables power and modulation to source base configuration. be controlled in real-time TM The SimGEN software supports three operating modes. Fixed mode ¢ Multiple configurations allows a scripted series of events to be defined, while Modelled mode allows the user to position interference sources in the scenario and model ¢ Compatible with embedded jamming (where the level effects as the simulated vehicle moves within the specified available on the underlying system) environment. Interactive mode enables the interference source power level and modulation characteristics to be controlled in real-time. ¢ Up to 4 fully independent interference sources supported Interference Simulation System: Spirent GSS7765 shown with Spirent GSS8000 GPS Simulator Weight Spirent GSS7765 ¢ Generators <13.5kg (28lb) Interference SImulatIon SyStem Configurations SPecIfIcatIon ¢ 1 to 4 generators, plus ICU Output Frequency Product Specifications (MS3055/MS3008) are available on request ¢ All signal types 500MHz to 2GHz Performance figures and data in this document are typical and must be ¢ Resolution 0.01Hz specifically confirmed in writing by Spirent Communications plc. before ¢ Stability <± 1ppm per year they become applicable to any particular order or contract. <± 1ppm typical over 0 to 55°C May also be frequency locked to an external standard of 1,2 or 10MHz The publication of information in this document does not imply freedom from patent or other rights of Spirent Signal Quality Communications plc. or others. ¢ Harmonics <-30 dBc For current product data, visit the Spirent websites at ¢ Non-harmonics <-48 dBc ¢ Sub-harmonics <-76 dBc www.spirent.com/positioning or www.spirentfederal.com Signal Level at Generator Output ¢ Noise -169 to –23dBW ¢ Other signals -166 to –20dBW ¢ Resolution 0.02 dB Interference/Signal Ratios (via ICU) Relative to GPS L1P signal at –163dBW ¢ Noise -16 to +130 dB ¢ Other signals -13 to +133 dB ¢ Modulation types CW Stepped-CW 2 to 65535 steps, 0.1ms to 100s dwell time AM 0 to 90% in 0.1% steps, sine, square, ramp, triangle rate 0.1Hz to 10kHz (sine 50kHz), 0.1Hz steps FM 20MHz max, 0.1% steps, sine, square, ramp, triangle rate 0.1Hz to 10kHz (sine 50kHz), 0.1Hz steps NOISE 1Hz to 48MHz bandwidth, 0.1Hz steps PULSE On/Off ratio >80dB Rise/Fall <50ns (typ) Period 2µs to 42s Connections ¢ RF Output (ICU and generators) Type N female co-axial Size (HxWxD approx) ¢ Generators 133 x 426 x 432mm (5.25 x 16.8 x 17inch) ¢ ICU 133 x 426 x 200mm (5.25 x 16.8 x 7.9inch) 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. MCD00155 Issue 1-02 02/12