Explain Analog and Digital transmission.?

Answer 1

analog signals composes of a wave of electricity moving from a positive charge to no charge for each bit. digital is a signal of electricity that is either charged or not. 1 or 0. Sorry if this is confusing, but that is basically how it works..

Answer 2

Gee well there could be a few: 1. Digital device on a bidirectional channel. States 1, 0, and high impedance. The digital signal could be filtered at the other end to reproduce an analog signal from a pulse train. 2. If you want another form of tri-state you can think of a transceiver. You can set it to 'transmit', 'receive' or to 'disabled' completely (this can be true for purely analog signals, say like a radio transmission). If you want to make it into a quad-state, could can get devices that receive what they transmit and then transmit what they just received. This is positive feedback and actually can be used to create ANOTHER type of tri-state device: 3. Flip flops. They transmit what actually is an analog signal to create an unstable analog feedback system to store digital data. Nobody cares what the analog data actually looks like but it is crucial to creating either a '1' a '0' or sometimes even a 'meta-stable' state which bounces between the two at a fixed frequency. Some analog signals are created through exciting 'meta-stabilities' like this to create fixed frequency oscillators in analog communications (very high bandwidth). Hmmmm, maybe a bit more context would help me tune into your specific example. Hope this helps.

Answer 3

Terrestial tv, am and vhf radio are analogue where the carrier wave is analagous to the information being transmitted - loud noise = big wave.

Satellite and cable tv, computer networks etc are digital where simply ones and zeros are transmitted -

Answer 4

well in simple terms we will use sound for example.

ANALOG

when you talk your vocal cord vibrates and this vibration is carried in the air molecules for a distance of which is mechanical.

DIGITIAL

is like using a S.O.S -DOTS...AND DASHES if you know how to decifier
the same thing happens with conversion of your voice when you speak into the phone.
the vibrations of your voice is converted to electronice pulses that the computer translates to send the information and at the other end of the phone is converted back to mechanical vibrations to the receiver speaker.