Signal Distribution Flashcards
7 cards from real SBCA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Signal Distribution flashcards as text
In a satellite signal distribution system, what is the primary purpose of a splitter?
Answer: Divide one input signal into multiple output signals
A splitter divides one input signal into multiple output signals, allowing a single source to feed several receivers simultaneously.
Which type of cable is most commonly used for satellite signal distribution in residential installations?
Answer: RG-6 coaxial cable
RG-6 coaxial cable is the standard for residential satellite installations due to its lower signal loss at satellite frequencies compared to RG-59.
What does a multiswitch accomplish in a satellite distribution system?
Answer: It allows multiple receivers to access multiple satellite transponders
A multiswitch allows multiple satellite receivers to independently select from multiple satellite feeds and transponders.
What is the typical impedance of coaxial cable used in satellite signal distribution?
Answer: 75 ohms
Satellite and cable TV distribution systems use 75-ohm coaxial cable as the standard impedance.
When cascading amplifiers in a distribution system, which problem becomes a primary concern?
Answer: Noise accumulation
Each amplifier in a cascade adds its own noise figure, causing cumulative noise accumulation that degrades signal quality.
What is the function of a diplexer in satellite signal distribution?
Answer: Combine or separate signals of different frequency bands on a single cable
A diplexer combines or separates signals of different frequency bands, allowing multiple signal types to share a single coaxial cable.
What signal level is typically considered the minimum acceptable at a satellite receiver input?
Answer: -70 dBm
A signal level of approximately -70 dBm is typically the minimum acceptable at a satellite receiver input for reliable operation.