CRAC Class C (2025) — Questions 241–250
U0264. After establishing voice communication, operator Xiaoming wants to give the other station BH1ZZZ a signal report of "57". He can say:
建立话音通信后，操作员小明打算给对方电台BH1ZZZ“57” 的信号报告。他可以这样讲：
Exam tips · 考试提示
A signal report is given by naming the station and stating its signal: "BH1ZZZ, 你的信号57" then confirming copy (A). B asks permission oddly; C gives the number without naming the station; D uses "this is BH1ZZZ" which would falsely claim to be the other station. Only A is correct.
U0265. After establishing voice communication, Xiaoming wants to say he is operating from Chengdu. He can say:
建立话音通信后，小明打算介绍自己是在成都操作的。他可以 这样讲：
Exam tips · 考试提示
QTH means "my location", so "我的QTH是成都" (My QTH is Chengdu) is the correct way to state operating location (A). QRT = shutting down (B), QRO = increasing power (C), QRV = I am ready / equipped (D) — none mean "located at".
U0266. When listening to SSB contacts between amateur radio operators, we sometimes hear short phrases like "Cheerio.", "Ciao ciao.", or "Do svidaniya." Their meaning is:
收听业余无线电爱好者的SSB通联时，我们有时会听到 “Cheerio.”、“Ciao ciao.”或“Do svidaniya.”一类的短 句。其含义是：
Exam tips · 考试提示
"Cheerio" (British English), "Ciao ciao" (Italian), and "Do svidaniya" (Russian) are all friendly farewells. On the air they express mutual good wishes and goodbye between operators of different regions (A). B/C/D only describe the linguistic nature, not the communicative meaning.
U0701. If you answer a CQ call in CW, how do you set your sending speed?
如果以CW方式回应一个CQ呼叫，你如何确定自己的发送速 度？
Exam tips · 考试提示
Good CW practice is to reply at a speed you can both send and copy well, and never faster than the station you are answering (A). Matching or exceeding the other's speed (B) is rude/uncopyable; the fixed WPM limits in C/D are not the rule.
U0702. Before initiating a call, an amateur station should listen for a while, then use a brief query to confirm the frequency is clear. When using CW or other text modes, the suitable short phrase for this situation is:
业余电台在发起呼叫前应先守听一段时间，然后再通过简短询 问来确定当前频率是空闲的。使用CW或其他文字方式进行通联 时，适合这一场景的短句是：
Exam tips · 考试提示
QRL? means "Are you busy?" / "Is this frequency in use?" — exactly the query to check whether a frequency is occupied before calling (A). QRT = "stop sending / are you closing down"; QRU = "have you anything for me?"; QRV = "are you ready?" — none asks about frequency occupancy.
U0703. The way for amateur station BH1ZZZ to send a CQ call in CW or other text mode is:
业余电台BH1ZZZ用CW或其他文字方式发起CQ呼叫的方法 为：
Exam tips · 考试提示
A standard CQ sends "CQ" three times, "DE", your call sign three times, then "PSE K" (A). B uses QRZ? (means "who is calling me?" — not a CQ); C omits the call repetition and uses KN (invitation to a specific station); D's excessive CQ repetition and "GA" are non-standard.
U0704. The way for amateur station BH1ZZZ to call BH8YYY in CW or other text mode is:
业余电台BH1ZZZ使用CW或其他文字方式呼叫BH8YYY的方 法为：
Exam tips · 考试提示
Calling a specific station: repeat the target call sign three times, "DE", your own full call sign three times, then "PSE K" (A). Abbreviating your call to "1ZZZ" (B, C) drops the prefix and is incorrect; sending only "8YYY" (D) omits the district prefix of the target — both are improper.
U0705. After establishing a CW contact, Xiaoming gives the other station an RST report of "579". He can send:
建立CW联络后，小明给对方"579"的信号报告。他可以发：
Exam tips · 考试提示
To send an RST report you say "UR RST 579" or simply "UR 579" (A). B ("thanks for report 579") is a reply to receiving a report, not giving one; C ("remarks is 579") and D ("is 579 ok for you?") are not standard report phrasing.
U0706. In a CW contact, after receiving the other station's signal report, we usually acknowledge receipt and thank them; we can send:
在CW联络中收到对方给出的信号报告后，我们通常会回应收妥 并致谢，可以发送：
Exam tips · 考试提示
"R" = received/acknowledged; "TKS FER RPT/RPRT" = thanks for the report — the standard acknowledgement after getting a report (A). B thanks for "your rig report" (odd), C references "remarks", D is not idiomatic CW.
U0707. In everyday CW contacts, we thank the other party for the nice contact; we can send:
在CW日常通联中，我们会感谢对方积极参与了联络，可以发 送：
Exam tips · 考试提示
"TNX FER NICE QSO ES HPE CU AGN 73 TU" = "thanks for the nice contact, and hope to see you again, 73 (best regards), thanks" — the standard closing for a pleasant QSO (A). B thanks for "nice report", C for "QSL info", D for "weather info" — not the general "nice contact" thanks.