T4B06: RIT: Of the following controls could be used

Q: Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

The correct answer is D: The RIT or Clarifier. The correct answer is D: The RIT or Clarifier. When a single-sideband signal returning to your CQ call seems too high or low in pitch, you can use the RIT (Receiver Incremental Tuning) or Clarifier to adjust your receive frequency slightly to match the other station's transmit frequency. On SSB, if the other station's frequency is slightly off from yours (or if there's a frequency error), their voice will sound too high-pitched (like chipmunks) or too low-pitched. The RIT/Clarifier allows you to tune your receiver slightly without changing your transmit frequency, so you can 'tune in' the other station's actual frequency and hear them at normal pitch. This is a common adjustment needed in SSB operation.

Updated: Dec 9, 2025 | Source: 2022-2026 Question Pool | Topic: T4B

T4B06T4B

Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

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Deep Dive: T4B06

The correct answer is D: The RIT or Clarifier. When a single-sideband signal returning to your CQ call seems too high or low in pitch, you can use the RIT (Receiver Incremental Tuning) or Clarifier to adjust your receive frequency slightly to match the other station's transmit frequency. On SSB, if the other station's frequency is slightly off from yours (or if there's a frequency error), their voice will sound too high-pitched (like chipmunks) or too low-pitched. The RIT/Clarifier allows you to tune your receiver slightly without changing your transmit frequency, so you can 'tune in' the other station's actual frequency and hear them at normal pitch. This is a common adjustment needed in SSB operation.

Why Other Answers Are Wrong

Option A: Incorrect. AGC (Automatic Gain Control) or limiter affects signal strength, not pitch. It won't fix high or low voice pitch. Option B: Incorrect. Bandwidth selection affects how much of the signal you receive, not the pitch. Narrower bandwidth might help with interference but won't fix pitch. Option C: Incorrect. Tone squelch is for CTCSS tones, not for adjusting voice pitch. It's unrelated to frequency/pitch issues.

Exam Tip

SSB pitch wrong = Use RIT/Clarifier. Remember: If an SSB signal sounds too high or low in pitch, use the RIT (Receiver Incremental Tuning) or Clarifier to adjust your receive frequency to match theirs.

Memory Aid

**S**SB **P**itch = **R**IT/**C**larifier (think 'SP = RC' = RIT/Clarifier)

Real-World Example

You call CQ on 28.400 MHz SSB, and a station responds. Their voice sounds too high-pitched (like chipmunks), indicating their transmit frequency is slightly higher than your receive frequency. You use the RIT control to tune your receiver up slightly (maybe to 28.401 MHz) without changing your transmit frequency. Now their voice sounds normal. The RIT lets you 'tune in' their actual frequency.

Source & Coverage

Question Pool: 2022-2026 Question Pool

Subelement: T4B

Reference: FCC Part 97.3

Key Concepts

RIT Clarifier SSB Frequency adjustment

Verified Content

Question from the official FCC Technician Class pool. Explanation reviewed by licensed amateur radio operators and mapped to the T4B topic.