Results of Hazeltine Distance-Measuring Equipment Tests
Abstract
A series of tests were made on a unit of experimental distance-measuring equipment (DME) built for the Civil Aeronautics Administration by the Hazeltine Electronics Corporation. These tests were designed to determine the accuracy, reliability and general performance of the video, decoder, search and track, and range indication circuits of the airborne equipment under simulated conditions of high traffic density. Results indicate that this equipment is capable of a high degree of range accuracy and has the ability to track at speeds far in excess of those of commercial aircraft. At high tracking speeds however, a rather objectionable oscillation of the range indicator was observed. Under simulated conditions of high traffic density, the average number of searches before tracking is begun was found to exceed the theoretical number greatly. Also, contrary to theory, high traffic density had little effect on search and memory time, because of improper action of the video and decoder circuits under high density.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 13, 1950
- Accession Number
- AD1214971
Entities
Organizations
- United States Naval Research Laboratory