This paper presents a new precision angle position indicator (API) which is developed based on virtual PXI instruments, with frequency range from 47 Hz to 20 kHz, providing angle measurement resolution up to 0.0001° and uncertainty of less than 0.001° (17 μrad) on single channel-mode. The efficacy of this technique surpasses those of commercially available API products, thereby adequately addressing the evaluation and assessment requirements within the aeronautical and aerospace industries, particularly in calibration of synchro and resolver simulators, and electrical specification testing of synchors or resolvers.