What is the purpose of the Receiver Incremental Tuning (RIT) or 'Clarifier' control?

• A. It switches between channels
• B. It acts as a 'fine-tune' control on the receive frequency
• C. It adjusts transmitter power
• D. It sets the squelch

Answer: (B)

RIT (Receiver Incremental Tuning) or Clarifier is a fine-tune control for the receive frequency that can be adjusted without changing the transmit frequency. It lets you shift what you hear on the air slightly so you can center a copy on a signal that’s off the dial or compensate for receiver drift. In practice, you turn the RIT/Clarifier to move the incoming signal in the receive path while your transmitted frequency stays fixed, which is very useful in SSB where small offsets are common. The other controls you might see perform different tasks: switching channels changes the operating frequency, adjusting transmitter power changes output, and setting the squelch controls muting of weak signals.