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T1A11

COMMISSION'S RULES · Purpose and permissible use of the Amateur Radio Service; Operator/primary station license grant; Meanings of basic terms used in FCC rules; Interference; RACES rules; Phonetics; Frequency Coordinator; Beacon

T1A11§ 97.101(d)T1A →

Which of the following is prohibited?

  1. AInternational communications on VHF bands and higher frequencies
  2. BWillful or malicious interference
  3. CThird-party traffic using digital modes
  4. DAll these choices are correct
Why FCC 97.101(d) states plainly that no amateur operator shall willfully or maliciously interfere with, or cause interference to, any radio communication or signal. Deliberate jamming, tuning up on top of a QSO on purpose, or keying over another station to disrupt it all fall under this ban. Accidental or unavoidable interference is a different matter and is handled by good operating practice, but intent is what makes it a rule violation.
Watch out International contacts are normally allowed on any amateur band with countries that permit them, and third-party traffic is legal (including digital modes) as long as it follows the third-party rules and any applicable international agreement, so neither is prohibited outright.
97.101(d): the only thing flatly banned here is doing it on purpose. Willful or malicious = illegal.
HamSandwich explanation, first draft. The question and answers are the NCVEC text.
47 CFR 97.101(d) General standards.

(a) In all respects not specifically covered by FCC Rules each amateur station must be operated in accordance with good engineering and good amateur practice.

(b) Each station licensee and each control operator must cooperate in selecting transmitting channels and in making the most effective use of the amateur service frequencies. No frequency will be assigned for the exclusive use of any station.

(c) At all times and on all frequencies, each control operator must give priority to stations providing emergency communications, except to stations transmitting communications for training drills and tests in RACES.

(d) No amateur operator shall willfully or maliciously interfere with or cause interference to any radio communication or signal.

eCFR text as of 1 Sep 2026 · read on ecfr.gov
← T1A10 All of T1A

The rest of T1A

  1. T1A01 Which of the following is part of the Basis and Purpose of the Amateur Radio Service?
  2. T1A02 Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?
  3. T1A03 What do the FCC rules state regarding the use of a phonetic alphabet for station identification in the Amateu…
  4. T1A04 How do you receive official notification of your new license and call sign after passing the exam?
  5. T1A05 What proves that the FCC has issued an operator/primary license grant?
  6. T1A06 On which of the following HF frequencies can automatically controlled amateur propagation beacons be found?
  7. T1A07 What is the FCC Part 97 definition of a space station?
  8. T1A08 Who recommends transmit/receive channels for repeater and auxiliary stations?
  9. T1A09 Who selects a Frequency Coordinator?
  10. T1A10 Besides an FCC-issued amateur operator license, what is required to be the control operator of a Radio Amateu…
  11. T1A11 Which of the following is prohibited?
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