Indiglo

I think that would be ideal, don't you think? ;)If that was the case, then I wouldn't break my head trying to find what to do. Perhaps you refer to ISI (intersymbol interference) which mainly has to do with digital pulse-train that after some length the pulses from 2 different signals will overlap eachother and at the receiver it would be very hard to distinguish what is what...I think that this has to do with transmitting via a coax and not a fibre. But still I am a long way from digital transmission. I still have to find out what to do with the analog link and then I'll see.

Exactly, that's what i am saying. I am trying to see if in real-time transmissions a fiber link will do any better than the standard coax or twisted pair. Also, I ma just wondering if the time for the audio to reach the speakers will be less than the propagation time within the CD player or any other audio playback device. I suspect it will, but it willl be a difference in the order of nsec. ;D Let's see...

thanks for the feedback all, well, analogue transmission is just a small tiny step to what I wanna do. In fact I don't know what I am gonna do later on, but I agreed at fisrt as an introduction to do a link of a single channel mono-directional from an audio playback source - to the modulation, throught the fiber, demodulation amplification at the receiver and right out from a set of speakers. So, it must be a real-time application 'cause it involves playback and not storage. And sound is just the beginning as I said, cause then the 2nd channel will involve video transmission (eehhmm..somebody said something about bandwidth ;D)...so it is not gonna be an easy task. Hopefully I came across some audio and video /VHF amplifiers to do the trick. Though I am working on it, anybody who reads this might as well drop a few lines for some additional guidance.. thanks again! PS: MP, though I understand that this is a handy use of fibers, it could not be only for telecomms but also for many many sources of data through the same fibre. If you have heard of WDM, then you know that one can achieve bandwidth in the order of THZ. (In the lab I am using a 1m fiber reel , so distance attenuation isn't a problem)

are you sure that someone can actually do this Kevin? I am not sure I understand ??? you actually mean "clocking " it in terms of sampling it? Then I have to use A-D converter and D-A respectivelly, plus I have to change the modulation scheme if I wanna go foe digital (PCM, etc). Initially I am after a purely analog link if you know what I mean. ;)The question is if there is a way to transmitt at a higher speed an audio signal than the frequency that the signal by nature propagates...

Hi guys I am new here, nevertheless here it is. My current project is to design and build a multichannel optical fiber link. The questions I got are related to the speed of the link. In order to achieve high transmission speeds(high BW/data rate), would this depend exclusively on the transmitter? If so, and suppose you are feeding the Tx with analog audio (not more than 20kHz)what is the amplifier in the transmitter for if you can have it at the receiver as well? And finally, should there be some matching between the transmitter and the reveiver apart from the transmisiion frequencies? Thanks in advance