VHF Omnidirectional Radio Range (VOR) Electromagnetic Spectrum Measurements

摘要

This report presents VOR electromagnetic spectrum measurement techniques applicable to site survey, installation, maintenance, and interference alleviation activities. Spectrum displays of the VOR emission contain valuable system performance information. These displays contain significant detail which can be used for analyzing the performance of various parts of the system. A basic set of VOR radiated spectrum displays taken at specific ground locations would be of value as a part of the basic facility records. Subsequent display samples could be taken remotely without disturbing the facility. Comparison of these with the site records would give insight into system performance and assist in the maintenance and flight inspection activities. (Author)