Instrument Landing System Localizer Vector Far Field Monitor Development.
Abstract
Report describes efforts carried out under the contract. It covers design, development and results of testing of the prototype Vector Far Field Monitor (VFFM) equipment. The VFFM is a localizer monitor located in the runway approach area on the runway centerline extended between the threshold and the middle marker vicinity. It measures the in-phase and quadrature components of the scattered and reflected localizer sideband radiation on the localizer course and calculates the potential maximum course DDM disturbance using synchronous and single point detection techniques. Problem of localizer transmitter incidental phase modulation or quadrature modulation effect of the VFFM is dealt with through a provision for a variable adjustment in the VFFM to tune out the corresponding quadrature component of the signal. The report includes a review of VFFM equipment description, including installation and operating instructions, assembly drawings, and circuit schematics, summaries of field test data and recommendations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1982
- Accession Number
- ADA122205
Entities
People
- O. A. Baughman
- R. A. Rajnic