Multiple choice technology

The input used by an antenna or cable to a TV set uses frequencies called...?

  1. IF

  2. RF

  3. AF

  4. SAP
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

TV inputs from antenna or cable use Radio Frequency (RF) signals - typically VHF (very high frequency) or UHF (ultra high frequency). RF is the standard term for radio-frequency signals used to broadcast television. IF (Intermediate Frequency) is used internally within the TV after tuning, AF (Audio Frequency) is sound-only, and SAP is a secondary audio program channel.

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