In general the idea of the driven ground through the basement floor is
NOT A GOOD IDEA.......unless at minimum it is bonded back to the AC mains
ground.
>From my take, any and all grounds should be located outside of the
structure and all must be bonded together outside of the structure.
If the antennas provide a reasonable impedance match and a suitable
ground system exist for those antennas requiring such, lightning
protection should be applied outside of the structure. Thus the only
ground necessary for the station is simply the 3rd pin safety ground.
73
Bob, K4TAX
> I just read the first post and not every one else's so I apologize first
> for my ignorance.
>
> The common modes approach was just fine, how you got to it in what order
> does not matter since it was a leaning experience.
>
> Look into shielded grounds. Use a piece of RG8 in each end of the coax
> solder a 0.01 mfd 1000V cap from the shield to center conductor. Attach
> center conductor to chassis of radio equipment. Drill a one inch hole
> through on basement floor about one foot or more from the basement wall
> so you do not drill a hole through the tile drains. pound in a 3/4 inch
> copper clad or galvanized ground rod through that hole and attach the
> other end of the center conductor to the STATION GROUND.
>
> Eliminate any ground loops if possible, if not, install common mode
> choke.
>
> I have tuned my artificial ground tuner between my station ground and
> electrical ground
>
> Stay on course, fight a good fight, and keep the faith. Jim K9TF/WA9YSD
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