G0A05: What must you do if an evaluation of your station shows that the RF e…

G0A05§ 97.13(c)(2), 1.1307(b)G0A →

What must you do if an evaluation of your station shows that the RF energy radiated by your station exceeds permissible limits for possible human absorption?

ATake action to prevent human exposure to the excessive RF fields
BFile an Environmental Impact Statement (EIS-97) with the FCC
CSecure written permission from your neighbors to operate above the controlled MPE limits
DAll these choices are correct

Why Under 97.13(c)(2) and section 1.1307(b), an amateur whose station evaluation shows fields above the maximum permissible exposure (MPE) limits must take corrective action so that no person is actually exposed above those limits. Typical fixes include raising or relocating the antenna, changing its direction, reducing power, lowering duty cycle, or fencing off and controlling access to the high-field area. The rule protects people, not the equipment, so the remedy is always to reduce exposure rather than to file paperwork.

Watch out An Environmental Impact Statement is only required for the rare categories of actions listed in Part 1 that may significantly affect the environment, and there is no such form for routine ham stations; neighbor permission has no legal standing since controlled-limit exposure applies only to people aware of and able to control their exposure, such as you and your household.

Over the limit? Fix the fields, not the forms: move it, aim it, turn it down, or keep people out.

HamSandwich explanation, first draft. The question and answers are the NCVEC text.

47 CFR 97.13(c)(2) Restrictions on station location.

(a) Before placing an amateur station on land of environmental importance or that is significant in American history, architecture or culture, the licensee may be required to take certain actions prescribed by §§ 1.1305-1.1319 of this chapter.

(b) A station within 1600 m (1 mile) of an FCC monitoring facility must protect that facility from harmful interference. Failure to do so could result in imposition of operating restrictions upon the amateur station pursuant to § 97.121. Geographical coordinates of the facilities that require protection are listed in § 0.121(c) of this chapter.

(c) Before causing or allowing an amateur station to transmit from any place where the operation of the station could cause human exposure to RF electromagnetic field levels in excess of those allowed under § 1.1310 of this chapter, the licensee is required to take certain actions.

(1) The licensee shall ensure compliance with the Commission's radio frequency exposure requirements in §§ 1.1307(b), 2.1091, and 2.1093 of this chapter, where applicable. In lieu of evaluation with the general population/uncontrolled exposure limits, amateur licensees may evaluate their operation with respect to members of his or her immediate household using the occupational/controlled exposure limits in § 1.1310, provided appropriate training and information has been accessed by the amateur licensee and members of his/her household. RF exposure of other nearby persons who are not members of the amateur licensee's household must be evaluated with respect to the general population/uncontrolled exposure limits. Appropriate methodologies and guidance for evaluating amateur radio service operation is described in the Office of Engineering and Technology (OET) Bulletin 65, Supplement B.

(2) If the routine environmental evaluation indicates that the RF electromagnetic fields could exceed the limits contained in § 1.1310 of this chapter in accessible areas, the licensee must take action to prevent human exposure to such RF electromagnetic fields. Further information on evaluating compliance with these limits can be found in the FCC's OET Bulletin Number 65, “Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields.”

eCFR text as of 1 Sep 2026 · read on ecfr.gov

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