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G0A08

ELECTRICAL AND RF SAFETY · - RF safety principles, rules, and guidelines; routine station evaluation

G0A08§ 97.13(c)(2)G0A →

Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations?

  1. APost a copy of FCC Part 97.13 in the station
  2. BNotify neighbors within a 100-foot radius of the antenna of the existence of the station and power levels
  3. CPerform a routine RF exposure evaluation and prevent access to any identified high exposure areas
  4. DAll these choices are correct
Why Under 97.13(c)(2) every amateur station, regardless of power or band, must be evaluated for RF exposure and the licensee must ensure that no one is exposed above the MPE limits. That means running the routine evaluation (calculation, modeling, or measurement) and then controlling the situation, typically by fencing, relocating the antenna, restricting access, or reducing power or duty cycle so people cannot get into the high-field region. The 2021 rule change removed the old categorical exemptions for most amateur stations, so the evaluation is now a universal requirement, and the results should be documented for your own records.
Watch out Posting Part 97 in the shack and notifying neighbors sound official but appear nowhere in the rules; there is no FCC requirement to post rule text or inform anyone nearby about your station or power level, so the choice saying all of them apply is also wrong.
Evaluate, then keep people out of the hot zone. No posting, no neighbor notices, just the evaluation.
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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The rest of G0A

  1. G0A01 What is one way that RF energy can affect human body tissue?
  2. G0A02 Which of the following is used to determine RF exposure from a transmitted signal?
  3. G0A03 How can you determine that your station complies with FCC RF exposure regulations?
  4. G0A04 What does "time averaging" mean when evaluating RF radiation exposure?
  5. G0A05 What must you do if an evaluation of your station shows that the RF energy radiated by your station exceeds p…
  6. G0A06 What must you do if your station fails to meet the FCC RF exposure exemption criteria?
  7. G0A07 What is the effect of modulation duty cycle on RF exposure?
  8. G0A08 Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations?
  9. G0A09 What type of instrument can be used to accurately measure an RF field strength?
  10. G0A10 What should be done if evaluation shows that a neighbor might experience more than the allowable limit of RF …
  11. G0A11 What precaution should be taken if you install an indoor transmitting antenna?
  12. G0A12 What stations are subject to the FCC rules on RF exposure?
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