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  1. 18-09-2011 #1
    Web Goblin's Avatar
    Lives in Stirling, United Kingdom.
    Web Goblin
    Last Activity: 07-10-2018 Has been a member for 9-10 years. Has a total post count of 795. Received thanks 50 times, giving thanks to others 6 times.
    I agree with John, only ground the shielding at on end or you will create parallel ground paths. Connecting the shielding at one end will allow any interference to "drain away"

    Ian
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  2. 19-09-2011 #2
    Robin Hewitt's Avatar
    Lives in Seaford, Sussex, United Kingdom.
    Robin Hewitt
    Last Activity: 19 Hours Ago Has been a member for 9-10 years. Has a total post count of 1,617. Received thanks 109 times, giving thanks to others 7 times. Is a beta tester for Machinists Network features. Referred 1 members to the community.
    Unlikely to be electromagnetic, the inverse square law is your friend.

    More likely to be vibration, can you pop a 'scope on one and see if it rattles?
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