Transmission Media Quiz

When load impedance equals to Zo of the line, it means that the load ____________ all the power.

• reflects

• attenuates

• radiates

• absorbs

Signals that are smooth, continuous voltage variations such as voice or video.

• Modulated waves

• Analog signals

• Carrier

• Digital signals

In coaxial cable, braided copper is used as a

• Dielectric

• Jacket

• Shield

• insulator

The process of transmitting two or more information signals simultaneously over the same channel is called

• Modulation

• Multiplexing

• Communication

• Full duplex

The ratio between voltage and current on an infinitely long transmission line.

• Surge impedance

• Power

• Resistance

• Velocity factor

For a maximum absorption of power at the antenna, the relationship between the characteristic impedance of the line Zo and the load impedance ZL should be.

• Zo=ZL

• Zo>ZL

• Zo

• Zo=0

Halving the power means

• 6-dB gain

• 3-dB loss

• 3-dB gain

• 6-dB loss

The most commonly used transmission line in television system.

• Parallel-wire line

• Coaxial cable

• Waveguide

• Open-wire with ceramic supports

The impedance of a TV transmission line depends on several factors. Which is not one of those factors?

• diameter

• length of the wire

• dielectric material

• separation between conductors

The characteristic impedance of a transmission line does not depend upon its ________.

• Conductor spacing

• Conductor diameter

• Length

• Conductor radius