TV Antenna Installation

Outdoor antennas must be grounded for best reception and protection against lightning strikes. Indoor and attic antennas do not need to be grounded. However, when an indoor antenna cable is longer than 30 feet, some people ground the antenna/mast because it might help reduce static electricity build up which reduces reception.


Antenna Placement
Signal StrengthThe antenna should be mounted as high as possible and have a clear line-of-sight (no hills, structures, trees, etc.) to the broadcast towers. The higher the antenna is, the greater the signal density.


Mast Mounting
Roof and Side MountsMast are typically 18-gauge galvanized steel tubes that are 5 or 6 feet long with a 1.25 inch outer diameter. In addition, some mast are designed to connect for extended length. A single section is strongest, two sections (10 or 12 feet) is acceptable in many locations.

  • Need to install the roof mounts carefully to prevent water leaks.
  • Side structure mounts (with 2 point or 2 bracket mounting) is the preferred method.

Avoid installing near overhead utility lines, especially power lines. The power line electromagnetic fields can cause interference or signal reduction, and the lines are dangerous to work around.

Install Coax

Antenna Cable

  • Connect RG-6 quad shielded coax cable to the antenna,
    • use a rubber weather boot or electrical tape to protect the connection
    • Allow for some cable slack by looping the cable around the mast. Because we may need a little extra cable length in the future, or the cable end needs repair.
  • Tie-wrap the rest of the cable to the mast.
  • Secure the coax cable with insulated cable straps.
  • The antenna cable connects directly to a coax ground block, mounted close to the home conduit.
    • Another cable connects to the ground block for inside cabling.
    • Loop the cable inside your home to prevent water from collecting at the conduit.