Which of the following is an advantage of using an antenna analyzer compared to an SWR bridge?
Antenna analyzers automatically tune your antenna for resonance
Antenna analyzers compute SWR and impedance automatically✓الإجابة الصحيحة
Antenna analyzers display a time-varying representation of the modulation envelope
All these choices are correct
الشرح
An antenna analyzer contains its own signal source and measurement circuitry, so it reports SWR together with complex impedance without needing a transmitter, while an SWR bridge indicates only standing wave ratio and needs external drive. It does not tune anything by itself and does not display modulation envelopes, so the combined answer is wrong.