Question
Which of the following is used to determine if an antenna is resonant at the desired operating frequency?
Answer Options
- A) A VTVM
- B) An antenna analyzer
- C) A Q meter
- D) A frequency counter
Correct Answer: B
Explanation
An antenna analyzer is a specialized test instrument that measures the electrical characteristics of an antenna system across a range of frequencies without requiring a transmitter. It is specifically used to determine if an antenna is resonant at the desired operating frequency.
An analyzer typically displays the antenna’s Standing Wave Ratio (SWR - T9B12) and impedance. By sweeping the frequency, the operator can see the lowest SWR point (where the antenna is resonant) and make adjustments to the antenna’s length to optimize its performance.
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