CRAC Class C (2025) — Questions 291–300
U0287. The meaning of the Q-code "QSK" is:
Q简语"QSK"的含义为：
Exam tips · 考试提示
QSK means "I can hear you between my signals / I am receiving while transmitting (break-in)." Option A describes this full break-in capability. B is QSB, C is QSD, and D is a repeat request — all different.
U0288. During a contact, if you need the other station to confirm that it received your message, you may use the phrase:
通联时，如需对方电台确认收妥自己发出的消息，可使用短 句：
Exam tips · 考试提示
QSL? means "Do you confirm receipt of my message? / Can you acknowledge?" Asking the other station to confirm receipt is exactly QSL?. QRZ? asks who is calling, QSP? asks about relaying, and QRO? asks about increasing power — none requests acknowledgment.
U0289. The meaning of the Q-code "QSL" is:
Q简语"QSL"的含义为：
Exam tips · 考试提示
QSL means "I acknowledge receipt / I confirm I have copied your message." Option A is correct. Note that "QSL" is also the name of the paper confirmation card, but the Q-code's core meaning is acknowledgment (B is a common follow-on but not the literal Q-code meaning).
U0290. The meaning of the Q-code "QSO" is:
Q简语"QSO"的含义为：
Exam tips · 考试提示
QSO means a contact/communication ("I can communicate with ... / I have a QSO with ..."), and is the standard term for an amateur contact. B describes QSL-card exchange, C describes QSP relaying, and D describes QRU — none is QSO.
U0291. During a contact, if you want to find out whether the other station can help relay a message to "station xxx", you may use the phrase:
通联时，如需了解对方电台可否帮助转信至"xxx电台"，可使 用短句：
Exam tips · 考试提示
QSP means "Can you relay my message to ...? / I can relay your message." Asking whether the other station can forward traffic to xxx is exactly QSP ×××?. QRD asks "Where are you bound?", QSX means "I am listening on ...", and QRV means "are you ready?" — none asks for relaying.
U0292. The meaning of the Q-code "QSP" is:
Q简语"QSP"的含义为：
Exam tips · 考试提示
QSP means relaying a message ("I can pass your message to ..."). Option A is correct. B is QSL-card exchange, C is QSO, and D is QRU — none is QSP.
U0293. During a contact, if Xiaoming wants Xiaoqiang to help listen out for his FT8 operation on 7074 kHz, he can send:
通联时，小明希望小强帮忙守听7074千赫的FT8操作，他可以 发：
Exam tips · 考试提示
QSX means "I am listening on ... / please listen on ...". "QSX MY FT8 ON 7074 KHZ?" asks the other to stand by and listen on that frequency for the FT8 operation. QSY means change frequency, QSL means acknowledge, and QRU means nothing to send — none asks the other to listen out.
U0294. When Xiaoqiang tells Xiaoming that he is listening for FT8 contacts on 7074 kHz, he can send:
通联时，小强告诉小明，他正在7074千赫守听FT8联络，他可 以发送：
Exam tips · 考试提示
QSX (statement form) means "I am listening on ...". Telling the other that you are standing by on 7074 kHz for FT8 is exactly "QSX FT8 ON 7074 KHZ". QSY would mean you are changing frequency, QSL is acknowledgment, and QRU is "nothing to send."
U0295. During a contact, if you need to negotiate with the other party to change frequency to nnnn kHz (or MHz), you may use the phrase:
通联时，如需协商对方改频至nnnn千赫（或兆赫），可使用短 句：
Exam tips · 考试提示
QSY means "I am changing to transmission on ... / shall we change frequency to ...?". Negotiating a move to nnnn kHz/MHz is exactly QSY nnnn. QRY is about transmission sequence/order, QSV is "shall I send V's", and QRV is "are you ready?" — none proposes a frequency change.
U0296. The meaning of the Q-code "QSY" is:
Q简语"QSY"的含义为：
Exam tips · 考试提示
QSY means "change transmission frequency to ...". Option A is correct. B is QRT (stop transmitting), C and D are informal non- Q-code statements — none is QSY.