Abstract: Aiming at  the technical features of separate azimuth vertical transmission device, a new calibration method with high accuracy for different transmission distances is proposed. The measuring and calibration of azimuth vertical transmission are achieved in different transmission distances without mechanical connection in horizontal state by using pentprism, silicon plate and autocollimation theodolite. The error analysis and experimental verification of the calibration system are carried out. A theoretical basis is provided for the promotion and application of azimuth vertical transmission device.

Key words: Azimuth, Transmission device, Calibration, Prism, Collimation