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Laptop Grounding, need help.

A

Addictus

n00b
Joined
Sep 2, 2003
Messages
10
Im using a PCMCIA DAQ that doesn't have an independant ground.
If the laptop it is in does not have a ground wire on the AC adapter, I get a lot of noise when recording. I need to purchase 3 laptops for some mobile testing using PCMCIA DAQ's and they need to be grounded so the data is less noisy.

In tests between grounded Compaqs and grounded Dells we found that Dell gave much less noise. This saddens me since I've learned to abhorr Dell support over the years, but it appears their power is cleaner. I'd like to get some nice new IBM Thinkpads, but haven't tested their noise levels since none of their T series have a grounding wire.

Could an in line surge supressor provide the ground needed on a laptop that doesn't have a ground wire? ... or am I doomed to only choose laptops that have a ground wire on their AC adaptor?
 
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