Updated: Dec 9, 2025 | Source: 2022-2026 Question Pool | Topic: T2B
T2B11T2B

Which Q signal indicates that you are changing frequency?

Deep Dive: T2B11

The correct answer is B: QSY. QSY is the Q signal that indicates you are changing frequency. Q signals are three-letter codes used in amateur radio for efficient communication. QSY means 'change frequency' or 'I am changing frequency to...' It's commonly used when operators want to move their conversation to a different frequency, perhaps to avoid interference, to use a more appropriate frequency, or to free up the current frequency for others. When you say 'QSY to 146.55' or send 'QSY 146.55' in CW, you're indicating you're moving to that frequency.

Why Other Answers Are Wrong

Option A: Incorrect. QRU means 'nothing for you' or 'I have nothing for you.' It's not about changing frequency. Option C: Incorrect. QSL means 'I acknowledge receipt' or 'I confirm.' It's used for confirming contacts, not changing frequency. Option D: Incorrect. QRZ means 'who is calling me?' or 'call again.' It's for calling, not changing frequency.

Exam Tip

Change frequency = QSY. Remember: QSY means changing frequency. Think 'QSY = Shift Your frequency'.

Memory Aid

**Q**SY = **Q**uick **S**hift **Y**our frequency (think 'QSY = Quick Shift Your frequency')

Real-World Example

You're having a conversation on 146.52 MHz, but the frequency is getting busy. You tell the other operator 'Let's QSY to 146.55' or send 'QSY 146.55' in CW. Both of you then move to 146.55 MHz to continue your conversation on a clearer frequency.

Source & Coverage

Question Pool: 2022-2026 Question Pool

Subelement: T2B

Reference: FCC Part 97.119

Key Concepts

Q signals QSY Frequency change Amateur radio procedures

Verified Content

Question from the official FCC Technician Class pool. Explanation reviewed by licensed amateur radio operators and mapped to the T2B topic.