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Where is the ground connection to the power supply chassis?

Discussion in 'Radio Circuits, Repair & Performance' started by N1QWI, Nov 9, 2020.

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  1. N1QWI

    N1QWI Ham Member QRZ Page

    Last edited: Nov 9, 2020
  2. K7JEM

    K7JEM Ham Member QRZ Page

    N1QWI likes this.
  3. KL7AJ

    KL7AJ Ham Member QRZ Page

    Why would you expect a generic power supply to have an RF groind?
     
    KA9JLM likes this.
  4. AJ4GQ

    AJ4GQ XML Subscriber QRZ Page

  5. W9WQA

    W9WQA Ham Member QRZ Page

    this aint over, magic word
     
    AJ4GQ likes this.
  6. N1QWI

    N1QWI Ham Member QRZ Page

    Fair enough..I think I should have rewritten my question as: "Is it necessary to connect the ground screw in the back of the power supply to my station RF ground bus which goes to the third prong of the outlet"...Since it's connected anyway, via the power cord, isn't this redundant?
     
  7. AJ4GQ

    AJ4GQ XML Subscriber QRZ Page

    Here you go:
     
    N1QWI likes this.
  8. AJ4GQ

    AJ4GQ XML Subscriber QRZ Page

    My compliments Sir!
     
  9. KA9JLM

    KA9JLM Ham Member QRZ Page

    HOT/-/COLD on a switching supply.

    Normally the printer is grounded using the AC cord. And that supply mounts to the 3D printer frame. (If used as intended.)
     
    Last edited: Nov 9, 2020
  10. N0TZU

    N0TZU Platinum Subscriber Platinum Subscriber QRZ Page

    Yes it would be redundant for safety purposes. It could be dangerous unless your station ground is properly bonded to the AC power service ground rod, and the antenna coax grounded where it enters the house. Most likely it would not be useful for RF purposes unless you have some specific problem that is insolvable otherwise.
     

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