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W6AH
Amateur Extra Class: 2020–2024
Today
Sections
E1: Commission's Rules
E2: Operating Procedures
E3: Radio Wave Propagation
E4: Amateur Practices
E5: Electrical Principles
E6: Circuit Components
E7: Practical Circuits
E8: Signals and Emissions
E9: Antennas and Transmission Lines
E0: Safety
Quick Index
Practice Test
Element 4
E9
E9C
E9C10
E9C10:
Which of the following describes a Zepp antenna?
A dipole constructed from zip cord
An end-fed dipole antenna
An omni-directional antenna commonly used for satellite communications
A vertical array capable of quickly changing the direction of maximum radiation by changing phasing lines
E9C01
E9C02
E9C03
E9C04
E9C05
E9C06
E9C07
E9C08
E9C09
E9C10
E9C11
E9C12
E9C13
E9C14