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question about multiplexing?
What kind of multiplexing do analog signals primarily use? What about digital signals?
ASKER
here is the practice question I'm stuck on:
Multiplexing is the subdividing of physical media into two or more separate channels. Analog signals primarily use ______ division multiplexing while digital signals primarily use __________________division multiplexing.
Multiplexing is the subdividing of physical media into two or more separate channels. Analog signals primarily use ______ division multiplexing while digital signals primarily use __________________division
Frequency and Time
ASKER
Are you sure? I thought it was AM for the first? :confused:
ASKER CERTIFIED SOLUTION
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Analogue normally uses AM (analogue modulation) where you have a high frequency signal and modify the amplitude according to the source signal, or FM (frequency modulation) where you slightly change the high frequency according to the source signal. There are also more complicated combinations of both.
Digital signals can use these methods but also use TDMA (time division multplexing) where each digital signal is sent one after the other.