In the field of magnetics, there are many devices that exhibit either behavior in the microwave regime or response to stimuli from microwave sources. The ultimate goal of this work is to study these devices and characterize these behaviors. In support of this goal, a myriad tasks are required including and not limited to device fabrication, test fixture fabrication and machining, characterization and testing software programming, and automated data processing. Specialized RF equipment will be utilized to measure high frequency signals including high frequency fixtures, probes, RF cables, vector network analyzers, and spectrum analyzers. The results of these characterization measurements include the finding of high frequency oscillation modes in perpendicular spin valve nanopillars, the discovery of a magnetically tunable ring oscillators, characterization of spin torque nano oscillators in in-plane magnetic tunnel junction devices, a study of a cross coupled spin torque nano oscillator, and device characterization using temperature dependent ferromagnetic resonance.