CRAC Class C (2025) — Questions 261–270

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U0718. During a CW contact, if you want to know how well the other station is copying your signal, besides "QSL ?", you can also ask:

进行CW联络，如需了解对方的抄收情况，除了“QSL ?”之 外，我们还可以问：

Exam tips · 考试提示

HW? is the abbreviation (abbreviation) for "how copy?" / "how do you copy?" — i.e., how well are you receiving me (A). QSL? asks "do you confirm receipt?". CW? is not a standard query, NR? means "number?", and HPI? is not a recognized copy- check abbreviation.

U0719. In a CW contact, if the other station copies your message perfectly, they will tell you in their reply using the abbreviation "R" or the Q-code "QSL". However, they sometimes use "CPI" instead of "R" or "QSL". This is because:

进行CW通联，如果对方完美抄收了我们发出的消息，他们会在 回复时用缩语“R”或Q简语“QSL”告知。但是，对方有时会 用“CPI”替代“R”或“QSL”。这是因为：

Exam tips · 考试提示

CPI is simply slang derived from "copied" — another way to say the message was received, used to vary wording and avoid repeating R/QSL (A). The expansions in B ("code perfectly interpreted"), C ("code printed immediately"), and D ("Cool, pretty interesting") are fabricated and not the real meaning.

U0720. During a contact, if you want to find out whether your signal is experiencing interference from other stations, you can use the short phrase:

通联时，如需了解自己的信号是否遇到了他台干扰，可使用短 句：

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QRM? is the Q-code asking "are you being interfered with by other stations?" — i.e., are you suffering man-made interference (A). QSN? asks "did you hear me on ...?"; QSD? asks about keying defects ("is my keying defective?"); QSM? means "shall I repeat the last message?".

U0721. During a contact, if you want to tell the other station that its signal is experiencing interference from other stations, you can send:

在通联中，如需告诉对方其信号遇到了他台干扰，我们可以 发：

Exam tips · 考试提示

Without the question mark, QRM states "you are being interfered with by other stations" — i.e., your signal is suffering man-made interference (A). QRN would mean natural/atmospheric interference; QRS means "please send more slowly"; QRP means "please reduce power".

U0722. During a contact, if you want to find out whether your signal is experiencing atmospheric (static) interference, you can use the short phrase:

通联时，如需了解自己的信号是否遭遇了天电干扰，可使用短 句：

Exam tips · 考试提示

QRN? asks "are you troubled by static (atmospheric interference)?" — natural/interference from lightning and nature (A). QRM? is man-made interference; QRP? asks to reduce power; QRQ? asks to send faster.

U0723. During a contact, if you want to tell the other station that its signal is experiencing atmospheric (static) interference, you can send:

在通联中，如需告诉对方其信号遇到了天电干扰，我们可以 发：

Exam tips · 考试提示

As a statement, QRN means "you are being troubled by static (atmospheric interference)" (A). QRM would be man-made interference; QRP means "reduce power"; QRQ means "send faster".

U0724. During a CW contact, the other station sometimes sends the symbol "di-dah di-di-dit". It looks like "AS" sent together, and when we copy it we put a bar over the "AS". The meaning of this symbol is:

CW联络时，对方有时会发来符号“滴答滴滴滴”。这像是将 “AS”连发在了一起，而我们抄写时会在“AS”上面加个横 线。该符号的含义是：

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The prosign "AS" (·/— ··· or di-dah di-di-dit) means "wait" / "please stand by" (A). It is a procedural sign, not a word. B ("Asia") is a different word; C and D are invented meanings.

U0725. During a contact, if you receive the short phrase "PSE QSL VIA BURO" sent by the other station, then the "QSL" in it means:

通联时，如收到对方发送的短句“PSE QSL VIA BURO”，则 其中的“QSL”意指：

Exam tips · 考试提示

"PSE QSL VIA BURO" means "please send me a QSL card through the bureau" — here QSL refers to the QSL card (A), and BURO is the QSL bureau. It is a request for a paper card via the bureau system, not an acknowledgment of the BURO message itself nor a vague confirmation.

U0726. When ending the current contact and bidding each other farewell, amateur radio operators often use the abbreviations:

业余无线电爱好者在结束当前联络并互致再见时经常使用缩 语：

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CU = "see you", CU AGN = "see you again", GB = "goodbye" — all farewell abbreviations (A). B (GM/GA/GE/GN/GX) are time- of-day greetings (good morning/afternoon/evening/night); C (TU/TKS/TNX) are thanks; D is a free-text phrase, not the standard sign-off set.

U0727. When ending a CW session, we often hear the other station send the symbol "di-di-di dah-di-dah". It looks like "SK" sent together, and when we copy it we put a bar over the "SK". The meaning of this symbol is:

在结束CW会话之时，我们时常听到对方发来符号“滴滴滴答滴 答”。这像是将“SK”连发在了一起，而我们抄写时会在 “SK”上面加个横线。该符号的意思是：

Exam tips · 考试提示

The prosign "SK" (···—· / di-di-di dah-di-dah) means "end of contact" / "silent key" — it closes the QSO (A). It is a procedural sign distinct from the farewell abbreviations, not "happy", "thanks", or "see you next time". Q 简语与常用缩语 Q-Codes and Common Abbreviations