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GNSS Signal & Interference Simulator T3900A

 
Overview
T3900A of TRANSCOM is equipped with two independent channels of signal output. The two channels can be respectively used to simulate the real-time Beidou/GPS/GLONASS system signals and generate simulation and digital modulation signals. Therefore, a solution with integration of real-time simulation of navigation signals and generation of suppressing interference signals and professional deception interference signals is provided for navigation product manufacturers, which can reduce the costs of research, development and production and improve the efficiency of testing and verification.
T3900A has the functions of constellation simulation, trajectory simulation, environment simulation, anomaly simulation and interactive simulation control, and can be used to simulate the satellite signal environment received by the receiver, based on the test scenes. The following items are defined in the test scenes: receiver location at the given time of simulation, motion state, satellite/ constellation parameters and parameters of ionosphere and troposphere, multi-path, shade, interference and other kinds of environmental impact.
T3900A has the functions of constellation simulation, trajectory simulation, environment simulation, anomaly simulation, interference modulation and interactive simulation control. It can not only be used to simulate the Beidou satellite signal environment received by the receiver, based on the test scenes, but also can simulate challenging true scenes, including weak signal conditions, strong interference conditions and highly dynamic and multi-path interference, so as to test the receiver performance in the extreme environment. The simulator can also be used to simulate the anomaly of the satellite navigation system to test the receiver performance in the wrong environment and provide powerful support for research, development and production of receivers.
T3900A has a wide range of frequency coverage and power regulation and can be used to simulate various kinds of suppressing and deception interference, continuous wave signals, frequency sweep signals, analog/digital modulation signals, broadband noise and custom interference. The interference mode of suppression first and then deception can be perfectly fitted with actual field interference applications, and plays an important role in the interference test, unattended monitoring, major activity guarantee, electronic countermeasure, etc.
Specification
  • Frequency  
    Frequency Range 10MHz ~ 4GHz
    Minimum Frequency 10MHz
    Resolution 0.01Hz
    Frequency Switch Time
    Continuous-wave Mode ALC on 10ms
    ALC off 100μs
    Sweep Mode 10ms
    Digital Modulation Mode 10ms
    Reference Clock
    Internal Clock Accuracy Aging <±2×10-8/year
    Resolution <5×10-8
    Temperature Effect <±3×10-9/year(-40℃~ +80℃)
    Line Voltage Effect <±0.3×10-9/year(±5% change)
    Internal Reference Output Frequency 10MHz
    Amplitude +2dBm ~ +6dBm
    Impedance 50Ω
    Waveform sin
    External Reference Input Input Frequency 10MHz
    Input Amplitude -3dBm ~ +10dBm
    Input Impedance 50Ω
    Waveform sin/square
     
    Output Power
    Power Range -110 ~ +15dBm
    Resolution 0.01dB
    Step Anttenuator 0 ~ 100dBin 10dB step
    Connector N type50Ω
     
    Absolute Level Accuracy (continuous-wave mode, ALC open)
      +15 ~ -60dBm <-60 ~ -100dBm <-100 ~ -110dBm
    10MHz ~ 250MHz ±1.0dB ±1.2B ±1.5dB
    >250MHz ~ 4GHz ±1.0dB ±1.2dB ±1.5dB
    Absolute Level Accuracy (continuous-wave mode,ALC off)
    10MHz ~ 4GHz ±1dB    
    Absolute Level Accuracy (digital I/Q mode,ALC open)
    300MHz ~ 4GHz ±1dB    
    Standard Absolute SSB Phase Noise (dBc/Hz, CW 10 dBm)
    Frequency 1kHz 10kHz 100kHz
    249 MHz -115 -123 -127
    250.1 MHz -133 -133 -139
    500 MHz -130 -127 -131
    1 GHz -117 -121 -124
    2 GHz -111 -115 -119
    3 GHz -107 -112 -117
    4 GHz -105 -109 -115
    6 GHz -100 -106 -113
     
    I/Q Modulator External Input
    Bandwidth 100 MHz
    Input Drive Range 0.5V, 50 Ohm
     
    Internal I/Q Output
    Impedance 50Ωnominal value  
    Mode singel ended or difference  
    Maximum Single Output Voltage ±0.5Vp-p  
    Bandwidth 0.1 ~ 100MHz  
    Common Mode I/Q Offset 0V