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Re: K2: Extending AUX cable length

Posted by Tom KG3V on Apr 03, 2009; 4:16pm
URL: http://elecraft.85.s1.nabble.com/K2-Extending-AUX-cable-length-tp2580829p2581627.html

Thanks Don

I guess this might have seemed like a good April fools joke, but actually,  
they do this with many other wire type interfaces. This includes Ethernet  
and RS-232. So if the drivers are fiber are affordable, I think it could be  
done.

If anyone has any data of the required rise times or prop delays between  
the devices, plese let me know. I may try something along this line.

Tom, KG3V


On Apr 3, 2009 10:37am, Don Wilhelm <[hidden email]> wrote:
> Tom,





> Pulse shaping as well as 'turnaround time' on the AUXBUS signal is  
> important. Extra cable length adds to the capacitance and will round over  
> the shape of the data pulses.


> Your proposed solution for using optical converters and cable may be a  
> potential solution, but as far as I know has not been tested.





> You are certainly welcome to try it, and if you do, I would encourage you  
> to share your results. I would be particularly interested in any data you  
> could find on data distortion and delay times through such a system.





> 73,


> Don W3FPR





> [hidden email] wrote:




> Has anyone tried REALLY extending the cable between the K2 and the KAT-2?  
> I would like to separate mine by 20 or 30 feet. What I want to do is get  
> the KAT-2 and all the antenna conectors off of my oprating table, and  
> close to the exit point of the shack.





> I have heard the main concerns are noise (pickup and radiation) and  
> timing. It would seem that using optical converters and optical cable  
> might take care of both.





> Any thoughts??





> 73,





> Tom, KG3V








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