Ultra High Bandwidth Satellite Link Emulator

The latest Satellite Link Emulator from dBm provides a cost-effective, time-saving, repeatable total solution for satellite and aircraft RF link testing. Accurate simulation of 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 SLE may be configured with up to four independent channels and operates at IF of 70 or 140MHz ( L-band for the high bandwidth model) . Optional internal L-band and external C, S, X and Ku, Ka band RF converters may be added to expand the frequency range.

Test parameters can be entered via the touch sensitive graphical front panel, by downloading files from internal flash memory or by downloading data through the Ethernet port.

The powerful DSP engine in the SLE9000 series allows optional Rayleigh and Rician multipath fading (up to six paths per channel) and digital additive White Gaussian Noise impairment to be added to the link. The propagation delay of the SLE 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, allowing "real-world" simulation of Doppler shift resulting from a satellite overpass and aircraft movements.