Question T2B11
From subelement T2 - T2B
Which Q signal indicates that you are changing frequency?
Why is this correct?
QSY is the Q signal that indicates you are changing frequency. Q signals are three-letter combinations beginning with 'Q' that represent commonly-used phrases in amateur radio. QSY specifically means 'I am changing to transmission on another frequency' or 'change your frequency to...' The other options have different meanings: QRU means 'I have nothing for you,' QSL confirms receipt of a transmission, and QRZ asks 'who is calling me?'
Memory tip
Remember Q signals by their functional patterns: QS- signals often relate to station operations (QSY for frequency changes, QSL for confirmations), while QR- signals typically involve questions or requests (QRZ asking who's calling, QRM reporting interference). This systematic approach helps distinguish between similar Q signals.
Learn more
QSY originated from early telegraphy when operators needed efficient ways to communicate frequency changes during poor propagation conditions. In modern amateur practice, announcing 'QSY' before changing frequency is considered proper operating procedure, especially during nets or when coordinating with other stations. The FCC's emission standards require proper station identification when changing frequencies, making QSY a useful procedural tool for maintaining orderly spectrum use.
Think about it
Why do you think amateur radio operators developed standardized Q signals like QSY instead of just saying 'changing frequency' in plain language?