This paper describes the design and baseband processing of a low cost real-time RF channel emulator for the testing of wireless communication systems. It incorporates six independent Rayleigh / Rician fading blocks based on the method of exact Doppler spread (MEDS), an additive white Gaussian noise (AWGN) generator based on the Box-Muller method and programmable delay blocks for up to six multipath channels. Each complex Rayleigh or Rician block is uniquely implemented using one Xilinx direct digital synthesizer (DDS) block consisting of 16 frequency generators. The entire architecture is simulated in Matlab and implemented on the Xilinx ZC706+FMCOMMS2 evaluation board. The statistical properties of the implemented system are also presented
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