🚀 go-pugleaf

In article <pell.727566512@isy>, pell@isy.liu.se (P{r Emanuelsson) writes:
> Hi. I am currently looking at building a uni-directional 100 kbit/s link
> for long distances (cable). I will probably FSK modulate a 100 MHz carrier

Why use 100MHz as a carrier for a 100kHz signal? Why not use a 300kHz
carrier (and use less expensive cable). Have you looked at using QAM
rather than FSK? The faster (fax etc) modems use QAM to squeeze 9600bps
out of a 3kHz link. If cable is a major cost consideration here then
this may be worth looking into. As smoeone has already mentioned, TAXI
chips do a good job of high speed serial conversion but you will still
need to modulate your serial output for transmission.

    Sla/n go fo/ill,
                    Risky B.
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Geoff Swan (research & development)   _--_|\         swanee@megadata.oz.au
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> Dept. of Electrical Engineering	                         pell@isy.liu.se
> University of Linkoping, Sweden	                    ...!uunet!isy.liu.se!pell