300 QUESTION BOARD EXAM REVIEWER PART4 Flashcards
1
Q
One Neper is how many decibels?
A
8.686 dB
2
Q
A signal is amplified 100 times in power, the dB gain is?
A
20 dB
3
Q
What is used to measure SWR?
A
Reflectometer
4
Q
214-056 twin lead is commonly used for TV lead-in has a characteristic Impedance of?
A
300 ohms
5
Q
What is the characteristic impedance of a transmission line which is to act as a quarter wave matching transformer between a 175 ohms transmission line and 600 ohms load?
A
Zo = SqRt[ (175)(600) ] = 324.04
6
Q
Known as one-tenth of a neper.
A
dNp
7
Q
The input impedance of a quarter wave short-circuited transmission line at its resonant frequency is
A
Extremely high, Infinite, an Open Circuit
8
Q
A
