What RF levels will impact equipment operations?
This is truly a case-by-case issue. There are no set regulationsdefining a single RF level that will cause RFI. Among other things, it depends on the sensitivity of the equipment under consideration, or how low an interfering signal can be in the presence of the equipment and cause problems. Also, equipment can be particularly sensitive to very low signal levels of one frequency and yet quite immune to high signal levels of another frequencyso frequency is an important factor. Some electronic system components are internally shielded and have a very high immunity to interference. But generally, most equipment has not been so engineered. Electronic equipment is often tested to RFI sensitivity by the manufacturer, but the results are not always easily obtainable. At Lawrence Behr Associates, communications facilities are often studied for the potential for RFI conditions, and unless there are specific threshold limits that are known beforehand, we use 1 Volt/meter as a point of concern.
