Many thanks to SWLing Post contributor, Dennis Dure, who shares the following item from Radio World:
NRSC Studies RF Noise on Various Roadway Types (Radio World)
Radio World asked Cris Alexander to read the report and comment
The National Radio Systems Committee recently published the results of a study on AM band noise.
The report, principally authored by John Kean, is titled NRSC-R102, “Measurement of AM Band RF Noise Levels and Station Signal Attenuation.” It was released in January.
The study consisted of several measurement series conducted along roadways both in urban and rural areas, measuring the signal strength of three different Baltimore/Washington 50 kW AM stations as well as the RF noise on three different unoccupied AM band frequencies.
Measurements were made across five environments: rural, rural-suburban, suburban, urban and dense urban. The results were mostly as one would expect, but there were a few surprises. [Continue reading…]
