Code of Massachusetts Regulations
105 CMR - DEPARTMENT OF PUBLIC HEALTH
Title 105 CMR 122.000 - Nonionizing Radiation Limits For: The General Public From Non-occupational Exposure To Electromagnetic Fields, Employees From Occupational Exposure To Electro-magnetic Fields, And Exposure From Microwave Ovens
Section 122.291 - Appendix B: Non-Amateur Intermittent Single Source Emitter Guide
Universal Citation: 105 MA Code of Regs 105.122
Current through Register 1518, March 29, 2024
where;
The following separation guide must be followed or separation distances submitted to and approved by the Director. The guide applies to the minimum distance that an antenna can be located from external surface of any habitable structure not located on the property containing the source and from habitable space on the same property normally occupied on a regular basis by others than the immediate family an/or employees of the owner and/or operator of the source.
| Frequency (MHz) Nearest | Minimum Distance From Current Maximum (feet) |
| less than 3 | 9.84 (KP/180,000) |
| 3 - 30 | 3.78 f(KP/180,00) |
| 30 - 300 | 3.28 (KP/200) |
| 300 - 1500 | 3.28 (3KP/2f) |
| greater than 1500 | 3.28 (KP/1000) |
f is the frequency in megahertz
P is the ERP in watts
K equals 7.96
In addition, the minimum separation from any radiating part of the antenna shall be of the above minimum separation from the nearest current maximum.
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