Sorry, you need to enable JavaScript to visit this website.
Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.

Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.

The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Breadcrumb

  1. Home

Measured and Predicted Long-Term Distributions of Tropospheric Transmission Loss

Report ID
OT/TRER 16
July 01, 1971
A. G. Longley, R. K. Reasoner, V. L. Fuller
Abstract

This report summarizes measurements of tropospheric transmission loss and its long-term variability for nearly 800 paths in various parts of the world. The measurements were made at frequencies from 40 MHz to 10 GHz over distances which range from 10 to 1000 km. Terrain profiles and cumulative distributions of both observed and predicted losses are plotted for more than 500 of these paths. A preliminary analysis of differences between observed and predicted values is included.


Key Words: Cumulative distributions, location variability, long-term variability, measurements, predictions, tropospheric propagation.