Azimuth Errors of the TACAN System

The major advantages and disadvantages of adding the ninth harmonic to the fundamental bearing signal of the TACAN system are presented. The effects of this addition are discussed in terms of the improved system accuracy, particularly under conditions of adverse siting. TACAN azimuth error data that were collected in ready-to-use form by recently developed methods are presented. These data, which allow separation of the site error from the total system error, indicate the azimuth accuracy of the TACAN equipment.