A wireless receiver unit having a first antenna and a second antenna that are separated in distance in accordance with frequencies used to provide two-path spatial diversity for frequency modulated, FM, operation, the wireless receiver unit comprising: a first amplitude modulated, AM,-FM, receiver connected to the first antenna by a first receiver path and arranged to receive and frequency down-convert a first AM signal and a second AM-FM receiver connected to the second antenna by a second receiver path and arranged to receive and frequency down-convert a second AM, signal that is a phase-shifted version of the first AM signal; a spatial phase corrector circuit connected to the first AM-FM receiver and the second AM-FM receiver and comprising: a computation circuit configured to generate a two-by-two spatial-covariance matrix, SCM, of a received first frequency down-converted AM signal and a second frequency down-converted AM signal; a signal decomposition circuit coupled to the computation circuit and configured to generate an Eigen-value decomposition, EVD, of the two-by-two SCM of the received first frequency down-converted AM signal and second frequency down-converted AM signal; and a processor coupled to the signal decomposition circuit and configured to analyse the EVD of the two-by-two SCM of the received first frequency down-converted AM signal and second frequency down-converted AM signal and select and output a principal Eigen-vector that is representative of a first weight and a second weight; and a combiner operably coupled to the spatial phase corrector circuit and having a first input port operably coupled to the first AM-FM receiver for receiving the first frequency down-converted AM signal and having a second input port coupled to the second AM-FM receiver for receiving the second frequency down-converted AM signal and having a third input port coupled to the spatial phase corrector circuit and configured to receive the first weight and second weight; wherein the combiner is configured to apply the first weight to the first frequency down-converted AM signal received and apply the second weight to the second frequency down-converted AM signal received and coherently combine and output a weight-applied frequency down-converted AM signal. a first amplitude modulated, AM,-FM, receiver connected to the first antenna by a first receiver path and arranged to receive and frequency down-convert a first AM signal and a second AM-FM receiver connected to the second antenna by a second receiver path and arranged to receive and frequency down-convert a second AM, signal that is a phase-shifted version of the first AM signal; a spatial phase corrector circuit connected to the first AM-FM receiver and the second AM-FM receiver and comprising: a computation circuit configured to generate a two-by-two spatial-covariance matrix, SCM, of a received first frequency down-converted AM signal and a second frequency down-converted AM signal; a signal decomposition circuit coupled to the computation circuit and configured to generate an Eigen-value decomposition, EVD, of the two-by-two SCM of the received first frequency down-converted AM signal and second frequency down-converted AM signal; and a processor coupled to the signal decomposition circuit and configured to analyse the EVD of the two-by-two SCM of the received first frequency down-converted AM signal and second frequency down-converted AM signal and select and output a principal Eigen-vector that is representative of a first weight and a second weight; and a computation circuit configured to generate a two-by-two spatial-covariance matrix, SCM, of a received first frequency down-converted AM signal and a second frequency down-converted AM signal; a signal decomposition circuit coupled to the computation circuit and configured to generate an Eigen-value decomposition, EVD, of the two-by-two SCM of the received first frequency down-converted AM signal and second frequency down-converted AM signal; and a processor coupled to the signal decomposition circuit and configured to analyse the EVD of the two-by-two SCM of the received first frequency down-converted AM signal and second frequency down-converted AM signal and select and output a principal Eigen-vector that is representative of a first weight and a second weight; and a combiner operably coupled to the spatial phase corrector circuit and having a first input port operably coupled to the first AM-FM receiver for receiving the first frequency down-converted AM signal and having a second input port coupled to the second AM-FM receiver for receiving the second frequency down-converted AM signal and having a third input port coupled to the spatial phase corrector circuit and configured to receive the first weight and second weight; wherein the combiner is configured to apply the first weight to the first frequency down-converted AM signal received and apply the second weight to the second frequency down-converted AM signal received and coherently combine and output a weight-applied frequency down-converted AM signal.