Impedanc Matching Problem

Jim Thompson wrote in news: snipped-for-privacy@4ax.com:

Whoo - I'm glad that I don't have that problem. If I did I could probably recommend that they ditched the old cables and installed some nice new fibre ;)

Best wishes Andy

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Isn't it traditional at this point to suggest the use of 2 lengths of 55 ohm cable in series ? ;-)

Graham

On Fri, 25 Mar 2005 02:39:56 +0000, Pooh Bear wroth:

No. Historically, the most popular suggestion for this news group would be to replace the cable with a PIC.

Jim

You do know that every single device that puts data on the line will have the same problem- requiring that whatever so-called matching you use will have to be applied to each and every device, and at low impedance this will load the hell out of everything since (duh) they are all in parallel.

work

I guess thats a good reason if youve already paid for a huge qunatity of the stuff. Otherwise I'd suggest buying compatible cable.

Can you not simply tweak the Rs in the output stage feeding the cable?

NT

snipped-for-privacy@meeow.co.uk wrote in news:1111717318.128063.17300 @z14g2000cwz.googlegroups.com:

Usual thing - Salesman agrees, engineer has to fix ;)

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