SLE9250

Satellite Link Emulator by dBm Corporation (3 more products)

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SLE9250 Image

The SLE9250 from dBm Corporation is a Satellite Link Emulator that provides the cost-effective, time-saving, repeatable total solution for the satellite to ground station RF link testing. The emulator can accurately simulate propagation delays, flat fading, path loss, phase shift, and Doppler shifts let systems engineers create realistic, full-duplex path scenarios for closed-loop testing of satellites, ground processing equipment, and mobile transceivers.

The Satellite Link Emulator can be configured for up to four independent channels with an IF of 70/140 MHz (L-band for the high bandwidth model) and a delay of less than 890 ms per channel. Optional internal L-band and external C, S, X, and Ku, Ka-band RF converters can be added to expand the frequency range.

The SLE9250 has a DSP that allows Rayleigh and Rician multipath fading (up to six paths per channel) and digital Additive White Gaussian Noise (AWGN) to be added to the link. The propagation delay of the emulator may be changed under program control and will maintain phase continuity under varying delay conditions. Time-varying delay creates carrier frequency shift and chip period variations that create real-world Doppler shift simulation resulting from satellite overpass and aircraft movements.

The SLE9250 is available in an enclosure that measures 17 x 7 x 21 inches with a front panel having a local control interface and RJ45 ethernet for remote control. It has an internal solid-state memory module that can store the ephemeris data files downloaded via an ethernet connection. This link emulator requires an AC supply voltage of 90-264 V (48-66 Hz) and consumes under 300 VA of power. It is ideal for Earth terminal testing, satellite payload testing, satellite system integration testbeds, mobile transceiver testing, and UAV testing applications.

Product Specifications

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Product Details

  • Part Number
    SLE9250
  • Manufacturer
    dBm Corporation
  • Description
    4-Channel Satellite Link Emulator

General Parameters

  • Amplitude Ripple
    ±0.5 to 1.5 dB
  • Applications
    Earth Terminal Test, Satellite Payload Test, Satellite System Integration Test Beds, Mobile Transceiver Test, UAV Test
  • Attenuation Accuracy
    ±0.20 dB
  • Attenuation Resolutions
    0.1 dB
  • Bands
    L Band
  • Delay Resolution
    0.1 ns
  • Dimension
    17 x 7 x 21 Inch (W x H x D)
  • Doppler Shift Resolution
    1 Hz
  • Impedance
    50 Ohms
  • In-Band Spurious Suppression
    -55 to -45 dBc
  • Interface
    RJ45, IEEE-802.3
  • Noise Floor
    -141 dBm
  • Number of Channels
    Up to 4
  • Remote Control
    Yes
  • Voltage
    90 to 264 V
  • VSWR
    1.50:1
  • Weight
    35 to 47 lbs
  • Attenuation
    0 to 70 dB
  • Bandwidth
    250 MHz
  • Center Frequency
    1200 MHz
  • Delay Range
    0.1 to 1400 ms
  • Operating Temperature
    10 to 40 Degree C

Technical Documents