CRAC Class B (2025) — Questions 101–110

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U0106. An amateur operator hears what is clearly man-made interfering transmission from a non-amateur station on an amateur-only frequency, and presses the microphone to lecture that transmitter about radio regulations. The correct comment on this behavior is:

某业余电台操作者听到业余专用频率上出现某种显然出自非业 余电台的人为干扰发射,于是按下话筒向该发射者宣传无线电 管理法规知识。对这种做法的评论应该是:

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Even in response to interference, an amateur station may only be used for intercommunication, technical research, and self-training — broadcasting a regulatory lecture is outside that scope (A). Options B/C/D wrongly call the action correct.

U0107. Retransmitting broadcast stations, internet chat, telephone calls, or other stations' contact signals through an amateur radio station — the nature of this behavior is:

在业余无线电台中转发广播电台、互联网聊天、电话通话、其 他电台的联络信号,这类行为的性质是:

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Rebroadcasting third-party content (radio, internet, phone, other stations' traffic) is prohibited because the information origin is not an amateur station, violating the statutory purpose (A). B/C/D wrongly excuse it.

U0108. An amateur station relays messages for other persons, units, or organizations during communication. The correct comment on this practice is:

业余电台在通信中为其他人或者单位、组织转达信息。对这种 做法的评论应该是:

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Relaying messages for third parties is illegal because it goes beyond the amateur station's permitted purpose (A). The content, being free, or being "public-interest" (B/C/D) does not make it lawful — the statutory-purpose limit is what matters.

U0109. An amateur radio association broadcasts public-interest notices and technical-training lectures to its members during transmissions, but without the approval of the relevant radio management authority. The correct comment on this practice is:

某业余无线电协会在发射操作中向其会员播发公益性通知和技 术训练讲座,但未得到相应无线电管理机构的批准。对这种做 法的评论应该是:

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Broadcasting or transmitting broadcast-type (通播) signals without approval is prohibited (A). The beneficial intent — skills, emergency training, or regulations publicity (B/C/D) — does not excuse the lack of approval.

U0110. The correct practice regarding the language used during amateur radio communications is:

关于业余无线电台在通信过程中使用的语言,正确的做法为:

Exam tips · 考试提示

业余通信应使用明语 (plain language) 或业余无线电领域公认的缩略 语、简语 (abbreviations/shorthand recognized by the amateur radio community). Self-created codes, jargon intelligible only within a clique, or rare languages meant to exclude others all violate the openness principle of the amateur service. Only A conforms.

U0111. May a person who possesses the operating-technical capability prescribed by the national radio management authority and holds a legally valid certificate, but has not yet been approved to establish their own amateur station, operate a transmitter at an amateur station? The answer is:

具备国家无线电管理机构规定的操作技术能力并具有法律规定 有效证明文件、但还没有获准设置自己的业余电台的人是否可 以到业余电台进行发射操作?答案是:

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A certified operator (with valid capability proof) may operate another's station, using that station's 呼号 (call sign); the station's 设台人 (licensee) bears responsibility for harmful interference from improper operation. B is wrong because you may never invent your own call sign or use your name as one; C/D are wrong.

U0112. Persons who have not obtained the corresponding amateur radio station license or the corresponding operating-technical capability may, for the purpose of improving their amateur radio operating skills, conduct transmitting-operation practice on another person's lawfully established amateur station. What conditions must be observed? (Choose all that apply.)

未取得相应业余无线电台执照或者相应操作技术能力的人员, 为提高业余无线电台操作技术能力的需要,可以在他人依法设 置的业余无线电台上进行发射操作实习。应遵守的条件是什 么?

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实习 (practice operation) by an uncertified person is allowed only under on-site supervision by the licensee/technical lead (A), and within the frequency/power scope of a Class B capability certificate — specifically, not exceeding the supervisor's lawful certificate scope (B, C). D is wrong: supervised practice by uncertified persons is permitted.

U0113. The legal responsibility that an amateur radio station licensee bears for their radio transmitting equipment is:

业余无线电台设置人应对其无线电发射设备担负的法定责任 为:

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设备责任 (equipment responsibility): the licensee must keep the transmitter in normal working order to avoid 有害干扰 (harmful interference) to other services. B (always newest model), C (max power to override others), and D (maximize occupancy) are incorrect and contrary to good practice.

U0114. The rule that an amateur radio operator must follow when using amateur radio receiving equipment is:

业余无线电爱好者使用业余无线电收信设备应遵守的规定为:

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An amateur receiver may only receive signals related to the 业余业 务 and 卫星业余业务 (amateur and amateur-satellite services). Deliberately receiving unrelated services (e.g., paging, private comms) is prohibited. B/C/D wrongly suggest unrestricted or "undetected is fine" reception.

U0115. When an amateur radio operator inadvertently receives information from non-amateur and non-amateur-satellite services, the rule to follow is:

业余无线电爱好者无意接收到非业余业务和卫星业余业务的信 息时,应遵守的规则为:

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Information 无意接收 (inadvertently received) from other services must not be 传播、公布 (disseminated or published). Even sharing among hams (B, C) or assuming public availability (D) is prohibited; the rule is strict non-disclosure.