Shielding the O2 Sensor Wire

[Ron Schroeder]

At 03:13 PM 5/26/01 -0400, you wrote:
>I've had good luck with braided shielding in other applications
>(specifically, fire and gas detection systems), but it is very critical NOT
>to ground both ends.  The shield needs to be grounded on one end and the
>other protected by heat shrink or any method to prevent it from creating
>another ground path.  What happens is the creation of an antenna.  I missed
>putting heat shrink on one end of a cable and only a few wires from the
>braid touched the conduit.  When a portable radio was brought into the
>vicinity and keyed - the system tripped.  It turns out that no shield is
>better than one grounded on both ends (in my experience anyway).
>
>Joe

Grounding only one end of the shield ALLMOST allway works best but not
ALLWAYS.  Some times you have to try both ways.

Ron Schroeder
WD8CDH
E. E. S.
wd8cdh at bnl.gov
rjs at bnl.gov
ron at 112motors.com
631 344-4561 Day
631 286-5677 Nite
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