Photo by Brock Wegner on Unsplash
Many thanks to SWLing Post contributor, Dennis Dura, who shares the following article from Radio World:
NRSC Releases Details of AM Band RF Noise Study (Radio World)
Noise levels remained consistent throughout different environments, even in downtown Baltimore
The National Radio Systems Committee’s AM Improvement Working Group has published a study examining the effects of RF noise on AM radio reception in cars.
Radio World readers will find the study’s scientific detail of interest. Noteworthy was how RF noise on the road often did not vary amongst the diverse environments sampled. Overcoming downtown building signal degradation was more of a concern, according to the study’s authors. Additionally, the study found field strength projections of AM signals to often not be reflective of contour predictions.
The group’s study intended to provide a better understanding of how AM radio reception is affected by RF signal strength and noise in a range of roadway environments. The authors also provided some suggestions to overcome signal loss. [Continue reading…]
No comment on emissions from electric and hybrid vehicles which spurred on this report from this report. These vehicles create the most electromagnetic pollution on acceleration & de-acceleration.
There was no test of HD radio coverage reliability on at least HD1 and HD2
Interesting report!
“…the study found field strength projections of AM signals to often not be reflective of contour predictions.” Yeah, no kidding (as every AM DXer knows)!