question about multiplexing?

What kind of multiplexing do analog signals primarily use?  What about digital signals?
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Hi HubTechnical,
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.
HubTechnicalAuthor Commented:
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.
Frequency and Time
HubTechnicalAuthor Commented:
Are you sure?  I thought it was AM for the first?  :confused:
AM is where you change the amplitide of a signal according to the input signal. Each input signal is used to change the amplitude of a diffeent frequency carrier. Therefore it is still frequency division.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.