This thesis discusses the work done towards the design, development and field testing of the first ever 2-path V-band 2SQCC digital correlating spectrometer based on the Multipath Cross Correlation Radiometry (MXCR) concept. The theoretical background and mathematical analysis of an ideal and practical 2SQCC transmission network architecture is presented. The implementation challenges encountered in instrument development and design recommendations towards the development of future instruments based on the MXCR concept are discussed. A technique to measure and compensate for the effects of cross-talk in the cross-correlation estimate between two receiver paths in the MXCR scheme is developed and implemented. The clear sky brightness temperature spectra from 51-54 GHz measured using the 2SQCC spectrometer is compared with the microwave radiative transfer model prediction. The observed spectrum is found to be matching the prediction within a few kelvins of offset attributable to the usage of an average atmospheric model. The work done towards the integration of the 2SQCC spectrometer to a spectrum broker orchestrating co-operative spectrum sharing between active and passive services is discussed.