eXplorer Satellite Simulator Print

Introducing the eXplorer Satellite Simulator
by Space Coast Communication Systems, Inc.

Hardware pic

The eXplorer UHF Satellite Simulator is a low cost, flexible platform for emulating UHF SATCOM and LOS behaviors. This system has provided years of consistent performance and configurability owing to an ultra reliable digital backbone. Since the eXplorer is programmable future manifestations can emulate other satellite systems including MUOS, TCDL or Inmarsat.


The eXplorer Satellite Simulator allows the user to configure on a channel-by-channel basis real world parameters such as time delay, Doppler and Doppler rate, additive white Gaussian noise (AWGN) and 5 and 25 kHz transponder effects. The models have been extensively characterized against the actual satellites. As opposed to a HW-based solution each eXplorer behaves identically. In the basic configuration, the eXplorer Satellite Simulator allows the user to interface at either RF (243-318 MHz) or optionally at IF (60-80 MHz). Unlike any other satellite simulator eXplorer allows the user to record, on an internal hard drive, the near baseband in-phase and quadrature (IQ) signal.




  • 1, 2, 4 or 8 independent SATCOM channels
  • Internal ovenized reference (or user-provided external)
  • 70 MHz input/output optional
  • 30 dB dynamic range on input (uplink)
  • -40 to 0 dBm signal power on output (downlink), 50 Ω impedance
  • Programmable latency 100 usec to 1 second
  • 5 or 25 kHz transponder 6-pole Chebyshev filters
  • hard-limiting transponder amplifier
  • spectrally invert individual channels
  • programmable Doppler and Doppler rate
  • AWGN, 22 to 79 dB C/N0


Legacy eXplorer

Time Delay

x x
Frequency Translation x x
Doppler / Doppler Rate x x
AWGN x x
Filtering HW SW
Hard Limiting HW SW
Calibration HW SW
Out of Band Emissions Yes No
Channel Cloning x
Spectral Inversion x
Range Walk x
Record x
Playback x


Download eXplorer PDF Brochure