Questenaتدريب يوضح لك ما ينبغي مراجعته لاحقًا
السؤال 386

Which of the following is a characteristic of using a gamma match with a Yagi antenna?

  1. It does not require the driven element to be insulated from the boomالإجابة الصحيحة
  2. It does not require any inductors or capacitors
  3. It is useful for matching multiband antennas
  4. All these choices are correct

الشرح

A gamma match connects the coax shield to the electrical center of the driven element, which is a voltage null, so the element can be bolted straight to a grounded boom without insulation. It does use a series capacitor, so the claim that it needs no inductors or capacitors is wrong.

تابع هذا الاختبار

بدء التدريب
السؤال 386: Which of the following is a characteristic of using a gamma… · FCC General Class (Element 3) · Questena