This paper presents a versatile spatial scanner Vector Network Analyser (VNA) channel sounder for indoor and outdoor scenarios exploiting a four axis positioner and optical transposition devices which allow a large separation between Tx and Rx antennas. This channel sounder can be used over several frequency bands of interest for the development of future multi antenna systems. This channel sounder alllows to acquire a large number of static channel matrices through a properly sampled region of space in order to retrieve the time-varying behaviour of the MIMO channel. A measurement run of a 4x8 MIMO channel acquired along a 0.7m translation