Question
What is the function of a Beverage antenna’s termination resistor?
Answer Options
- A) Increase the front-to-side ratio
- B) Absorb signals from the reverse direction
- C) Decrease SWR bandwidth
- D) Eliminate harmonic reception
Correct Answer: B
Explanation
The Beverage antenna achieves its unidirectional pattern (high gain in the direction away from the feed point, deep null toward the feed point) by ensuring that the RF energy is not reflected from the end of the wire. This non-reflection is achieved by the terminating resistor.
The function of a Beverage antenna’s termination resistor is to absorb signals from the reverse direction. Signals traveling down the wire from the front are passed directly to the receiver. Signals arriving from the reverse direction travel down the wire toward the feed end, where they are absorbed by the resistor, preventing them from being reflected back and interfering with the desired signal.
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