A Short Guide to HF Ground Wave Circuit Availability.
Abstract
Atmospheric noise statistics presented by the CCIR have been applied to the problem of circuit availability of an air to ground HF ground wave voice communications system. The best and worst case noise conditions have been considered for a location in the United Kingdom. Curves are presented showing the expected ranges of the system in terms of its stipulated circuit availability. Means are provided whereby the results may be applied to air to ground or ground to ground systems generally, for the purpose of performance prediction. Ground wave radio propagation is reviewed and the statistical concept of circuit availability is explained in terms of the underlying noise characteristics. The limitations to the scope of this Report are discussed and attention is drawn to problem areas; recommendations for further work are made. Subject to the stated qualifications, this Report is proposed as an engineering guide to HF ground wave communication system circuit availability. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1977
- Accession Number
- ADA052090
Entities
People
- R. M. Harris
Organizations
- Royal Aircraft Establishment