Propagation Effects Replicator QPER

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The Qosmotec Propagation Effects Replicator QPER is a channel simulator that can emulate all effects of disturbance relevant for a radio channel transmission tests, such as propagation delay, Doppler shift and spread, phase shift, multipath and noise. QPER is suited for radio path verification of any radio broadcasting equipment operating between 380 and 6000 MHz, including MIMO systems, for which QPER offers up to 32 individual links per 19" / 7U rack unit.

Being based on the same real-life-like virtual drive test mode QPER, makes radio path verification vivid and dynamic. In addition, QPER supports traditional tapped channel models like ITU/3GPP (incl."sinusoidal delay", "birth-death" and "high-speed train" models) as well as simulation of MIMO-related channel matrix, correlation matrix (arbitrary/Kronecker) and geometric channel models (SCME, WINNER I/II).

Read more about how the virtual drive test method reproduces fault situations found in the field beyond traditional test standards provided by competing channel emulators in this case study, recently published in a special issue of the German Funkschau business magazine for radio technology (scroll down for English version).

Watch the video to learn more about the usage of QPER and the strenght of the virtual drive test approach.

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