Answer to Question #2857 Submitted to "Ask the Experts"

Category: Microwaves, Radar, and Radiofrequency — Satellite Dishes

The following question was answered by an expert in the appropriate field:

I would like to know what effects satellite dishes that are no longer in use, but still on top of houses, have on people.

Satellite dishes on houses are there to receive, not transmit radiowaves. The radiowaves they are receiving come from satellites and are of a very low power density by the time they get to the surface of the earth. The radiowaves from satellites and the receiving dishes on top of houses pose no radiofrequency hazard to people.

Gary H. Zeman, CHP, ScD

Answer posted on September 3, 2003. The information and material posted on this Web site is intended as general reference information only. Specific facts and circumstances may alter the concepts and applications of materials and information described herein. The information provided is not a substitute for professional advice and should not be relied upon in the absence of such professional advice specific to whatever facts and circumstances are presented in any given situation. Answers are correct at the time they are posted on the Web site. Be advised that over time, some requirements could change, new data could be made available, or Internet links could change. For answers that have been posted for several months or longer, please check the current status of the posted information prior to using the responses for specific applications.