TDR (Ulearn Network Technician Core Skills) Flashcards
1
Q
Impedance mismatch causes
A
Reflections
2
Q
Reflections can cause
A
Standing waves, Increased peaks and valleys
3
Q
What impedance are cable networks designed to operate at
A
75 ohms
4
Q
TDR
A
Time-Domain Reflectometer
5
Q
VoP
A
Velocity of Propagation
6
Q
The speed at which a signal propagates down the cable compared to the speed of light in a vacuum is known as
A
Velocity of Propagation (VoP)
7
Q
Velocity of Propagation (VoP) is usually expressed as what
A
A percent
8
Q
The TDR display plots the __________ of any reflected signal as a function of time
A
Amplitude
9
Q
Typically, the RF signals travel at roughly ______ the speed of light in coax. This speed is known as the velocity of propagation.
A
2/3
