Do You Need To Ground Antenna In Attic

There is no requirement to ground an indoor or attic antenna.

Do you need to ground antenna in attic.

Typically the house wiring and gutters represent a much lower impedance path to ground for lightning than the floating attic antenna. In the case of an attic installation your tv antenna will be sheltered from the environment so there s no need to ground it for that reason. Antennas mine are receive only for fm tv and public safety bands will be generally restricted to the attic. Agreeing with adtech i don t see the nec requiring you to ground an indoor antenna system.

Some attics are dark unwelcoming places used only for extra storage and in those cases nearly any antenna will get the job done. If you ve taken the time to insulate lay flooring or even decorate your attic however you may want something that s a little less of an eyesore. Keep your grounding parts however. But if you have access to a ground connection that can serve the attic splitter it makes sense to use it.

For all practical purposes an attic antenna is considered and indoor antenna and does not require any special grounding. However the connection of your antenna coax to various ac operated equipment in this case your converter box or tv introduces the potential of electric shock. If you find the attic install unsatisfactory and you move the antenna outside then you definitely do need it. Below is an image taken form the nec code book that shows how to properly ground a tv antenna.