Description

Contact TestWorld today for the best price on the Spirent TAS 4500 Dual Channel RF Emulator, 25 to 4000 MHz.

Explore Financial options to find a cost management solution best for your company:

• Test Equipment Rentals
• Lease and Finance Test Equipment
• Rent-to-Own Test Equipment

RF Channel Specifications:

• Physical Impedance Characteristics:
  • Impedance: 50 Ohms
  • Inpus SWR: < 1.5
  • Connector Type: N Type Female
• Path Insertion Delay (RF In to RF Out): 4.0 microseconds (μs) maximum
• Group Delay Distortion: ±30 nanoseconds
• Spurious Emission Levels on RF out (without the EFX option)
  • Within Channel Padd Band: – 45 dBc maximum
  • RF Image Feedthrough: = RF OUT level typical
  • RF LO Feedthrough: 0 dBm maximum
• Channel Insertion Loss: 12 dB Typical (16 dB maximum)
• RF Bandwidtch Peak to Peack Amplitude Variation: 1dB Typical (2dB maximum)
• RF Input Signal Level:
  • Range: +5 to -30 dBm
  • Nominal: -10 dBm
  • Damage Level: +20 dBm
  • Automatic Reference Level Range: 0 to -25 dBm
• Number of Independent RF Channels: 1 or 2
• RF Bandwidth: 26 MHz
• RF Input Signal Frequency Range: 25 MHz to 4000 MHz

RF Channel Options:

• RF Image and LO Feedthrough Suppression (EFX Option)
  • Frequency Range 800 to 3000 MHz
  • RF Image Feedthrough on RF Out -50 dBc maximum
  • RF LO Feedthrough on RF Out -75dBm maximum
  • Additional Channel Insertion Loss 6 dB typical (8 dB maximum)
  • Additional Channel Amplitude vs. Freq. Variation 1 dB typical (2 dB maximum)
• RF Output Attenuator
  • ATT1:
    • Attenuation Range 0 to 80 dB
    • Resolution 0.1 dB
    • Frequency Range 800 to 2500 MHz
    • Accuracy
      • 0 to 10 dB attenuation ±0.75 dB
      • >10 to 20 dB attenuation ±1.5 dB
      • >20 to 30 dB attenuation ±2.0 dB
      • >30 to 60 dB attenuation ±3.0 dB
      • >60 to 80 dB attenuation ±5.0 dB
      • Additional Channel Insertion Loss 2.5 dB maximum
  • ATT3:
  • Attenuation Range 0 to 90.0 dB
  • Resolution 0.1 dB
  • Frequency Range 25 to 3000 MHz
  • Accuracy (25 to 3000 MHz)
    • 0 to 49.9 dB attenuation ±1.0 dB
    • 50.0 to 85.0 dB attenuation ±2.0 dB
    • 85.0 to 90.0 dB attenuation ±2.5 dB
    • Additional Channel Insertion Loss 1.5 dB maximum
  • RF Filter Bypass (FBP Option) and RF Channel Bypass (CBP Option)
    • Additional Insertion Loss 1 dB typical (2 dB maximum)
• Local Oscillator (LO) Characteristics
  • Internal Local Oscillator (LO 4 option) (All specs refer to LO OUT unless noted)
    • LO Frequency Range 940-2860 MHz
    • Carrier Frequency Range (RF IN) 800-3000 MHz
    • Frequency Resolution 100 kHz
    • Frequency Accuracy 2 kHz
    • Phase Noise (1 kHz offset) -75 dBc/Hz
    • Level +13 dBm typical (+10 dBm minimum)
  • External Local Oscillators (All specs refer to LO IN unless noted)
    • LO Frequency Range 165-3860 MHz
    • LO Offset from Carrier Frequency (Fc)
    • Fc ≥800 MHz Fc – 140 MHz
    • Fc <800 MHz Fc + 140 MHz
    • Level Range +12 to +15 dBm
    • Nominal Level
      • Fc<3.6 GHz +13 dBm
      • Fc≥3.6 GHz +15 dBm
    • Damage +23 dBm
    • LO Impedance 50Ω

Channel Emulation Characteristics

• Number of Independent Paths per Channel: 3 or 6
• Path Modulation: None, Rayleigh, Frequency, Shift, Phase Shift, Rician, Rayleigh with Freq. Shift, Rician with Frequency Shift, Nakagami
• Fading Emulation Method
  • Programmable with 2 modes: Jakes, Filtered Noise
  • Fading (Rayleigh) Amplitude Distribution (Deviation from Theoretical CPDF exceeds the following requirements (exceeds IS-137/138 and IS-97/98 requirements): From +10 to -30 dB of mean power level ± 0.5 dB
  • Level Crossing Rate (LCR) Accuracy exceed the following requirements (exceeds IS-137/138 and IS-97/98 requirements): From +3 to -30 dB of mean power level < ± 2.5% deviation theoretical LCR curve of the simulated vehicle velocity
• Fading Power Spectrum
  • Emulation Method = Jakes Programmable with 2 shapes: Classical 6 dB, Flat
  • Emulation Method = Filtered Noise Programmable with 4 shapes: Classical 6 dB, Flat, Classical 3 dB, Rounded
  • Fading Repetition Interval
    • Emulation Method = Jakes
    • Simulated Doppler frequency < 500 Hz > 20 minutes
    • Simulated Doppler frequency > 500 Hz > 10 minutes
    • Emulation Method = Filtered Noise Programmable with 3 modes: 27 seconds, 20 minutes, 24 hours
• Correlation Coefficient (Between Channel 1 and Channel 2 Paths)
  • Range 0 to 1
  • Resolution 0.01
• Velocity
  • Range (fc = 900 MHz) ± 0.1 to ± 1199.2 km/hr (± 0.1 to ± 745.1 mph)
  • Resolution 0.1 units
  • Units m/s, km/hr, feet/sec, mph
• Fading Doppler Frequency
  • Range
    • Jakes Mode ± 1 to ± 1000 Hz
    • Filtered Noise Mode ± 0.1 to ± 1000 Hz
  • Resolution 0.1 Hz
• Doppler Shift Frequency (Frequency Shift)
  • Range ± 0.01 to ± 1000.00 Hz
  • Resolution 0.01 Hz
• Line of Site (LOS) Arrival Angle (Modulation = Rician or Nakagami)
  • Range 0 to 360 degrees
  • Resolution 0.1 degrees
• Relative Phase Between Paths (Modulation = Phase)
  • Range 0 to 360 degrees
  • Resolution 0.1 degrees
• Rician K Factor (Modulation = Rician)
  • Range -30 to +30 dB
  • Resolution 0.1 dB
• Nakagami M Value (Modulation = Nakagami)
  • M Values 1, 3, 5, 10, 15, 25, 100
• Fading Shift Frequency (Modulation = Rayleigh with Frequency Shift, Rician with Frequency Shift)
  • Range -999.0 to +999.0 Hz
  • Resolution 0.1 Hz
• Relative Path Delay
  • Range
    • Standard System 0 to 125 µsec
    • Extended Delay Option 0 to 2000 µsec
  • Resolution 0.5 nsec
  • Accuracy ± 10 nsec
• Relative Path Loss (measurement performed with Modulation = Rayleigh)
  • Range 0 to 50 dB
  • Resolution 0.1 dB
  • Accuracy
    • 0 to 30 dB attenuation ±0.3 dB
    • >30 to 40 dB attenuation ±1.0 dB
    • >40 to 50 dB attenuation ±3.0 dB
• Log Normal Fading Standard Deviation (Relative Path Loss = 25 dB)
  • Range 0 to 12 dB
  • Resolution 1 dB
• Log Normal Fading Rate
  • Range 0 to 20 Hz
  • Resolution 0.001 Hz