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E9E - Antennas and Transmission Lines

Extra Class

Specialized antennas: rhombics, V-beams, Beverage, phased verticals

10 questions

All E0A E1A E1B E1C E1D E1E E1F E2A E2B E2C E2D E2E E3A E3B E3C E4A E4B E4C E4D E4E E5A E5B E5C E5D E6A E6B E6C E6D E6E E6F E7A E7B E7C E7D E7E E7F E7G E7H E8A E8B E8C E8D E9A E9B E9C E9D E9E E9F E9G E9H

E9E01

Which matching system for Yagi antennas requires the driven element to be insulated from the boom?

E9E02

What antenna matching system matches coaxial cable to an antenna by connecting the shield to the center of the antenna and the conductor a fraction of a wavelength to one side?

E9E03

What matching system uses a short length of transmission line connected in parallel with the feed line at or near the feed point?

E9E04

What is the purpose of the series capacitor in a gamma match?

E9E05

What Yagi driven element feed point impedance is required to use a beta or hairpin matching system?

E9E06

Which of these transmission line impedances would be suitable for constructing a quarter-wave Q-section for matching a 100-ohm feed point impedance to a 50-ohm transmission line?

E9E07

What parameter describes the interaction of a load and transmission line?

E9E08

What is a use for a Wilkinson divider?

E9E09

Which of the following is used to shunt feed a grounded tower at its base?

E9E11

What is the purpose of using multiple driven elements connected through phasing lines?