Advanced Qualification · A-007 Feedlines and matching · A-007-001-004
For an antenna tuner of the "Pi" type, which of the following statements is false?
- A The circuit is a series-type antenna tuner
- B The transmitter input is suitable for impedance of 50 ohms
- C The antenna output is suitable for impedances from low to high
- D The circuit is a Pi-type antenna tuner
Correct answer: A — The circuit is a series-type antenna tuner. From the official ISED question bank, verified word for word.
Why
A "Pi" type antenna tuner is named for its shape, which resembles the Greek letter Pi, using two capacitors and one inductor arranged in a specific parallel configuration, not a series one. The full explanation — and one for every question — is in Pro.
Practise this section
Feedlines and matching at the advanced level: transmission line theory, impedance transformation, stubs and matching networks.