Re: S-parameter test sets



In article <1LFve.130$0V3.33@xxxxxxxxxxxxxxxxxxxxxxxxxx>,
notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx says...
> Hello Mike,
>
> > A major problem with gpib is the interface is wire-or, ...
>
> The main problem I found with GPIB are those unwieldy garden hose type
> cables. Once I unhooked one and sure enough it recoiled, sending my half
> filled coffee mug sailing, crashing and spilling the contents all across
> the lab floor. On top of that it was my favorite mug.

Not to mention that they didn't always work. Some I had to wire in a
star, others daisy-chained to get the damned instruments to talk. I
always hated GPIB!

> I think Terry's path towards a TUSB uC may be a good one. Just imagine,
> replacing the garden hose with a USB cable from Walmart. Also, the cost
> for a 6ft cable would go from $100 or so to less than $10.

I'd prefer Cat-5 and Ethernet. Indeed, I'd rather have Ethernet than
_any_ USB. Connecting a device across the Internet would be a little
easier too. ;-)

> The only downside with USB is that its EMI performance is, well, not the
> best at times. RS232 would be better but many "modern" PCs don't have
> serial or parallel ports anymore. Oh well, out here we just keep a stack
> of ferrites handy.

--
Keith
.



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