[1000mp] Let me state my case more fully

[ARS NZ3O (Byron) FM29fx]

I have a similar setup.  I added ICE filters to the amp
and radio and put my groundrod through the concrete
floor.  When my antenna is aimed across the house at
the electrical panel (and my mini PBX) I get common
mode interference in the electrical panel and a clicking
in some of the related (X10 bridge) equipment.

Other than that, the only interference I get is on 160 meters
and that's a problem I have yet to solve.  I suspect alarm system
leads in the roof.

73, Byron

At 07:02 PM 3/6/2003 -0600, FireBrick wrote:
>My shack is in the basement. RIGHT under the Electrical Service and right
>over the copper water service.
>
>My tower is RIGHT outside the basement wall, less than 4 feet from the rig.
>The tower is grounded with multiple ground rods around the perimeter of the
>tower.
>The electric meter, on the outside wall also has it's own ground rod as per
>local codes.
>The electric service is overhead.
>
>On the outside wall, right behind the rig shelf I Mounted a 3" wide copper
>strip.
>I installed brass washers, bolts and wing nuts spaced about 6" along the
>length of the copper strip. (not sure of the gauge of the copper but it's
>like 1/16th" thick) I even used a GREAT BIG iron to put solder over the bolt
>head and copper strip.
>
>Now my system is not exactly daisychained. MP, Amp, and other ancillary
>equipment each have a ground strap connected to one of the bolts on that
>wall mounted copper strip.
>
>All coax are terminated with a grounding device outside the wall at a ground
>rod.
>The wall mounted copper strip is also attached to that ground rod and the
>other end is attached to the water pipe.
>
>Rig, Amp, and most of the equipment all have separate circuits, amp is 220.
>Even the computer has it's case connected to the wall mounted copper strip.
>
>Now unfortunately, the tower is next to the house and the antenna partially
>cover the back half of the house. No room to move it farther away, Just
>can't be done.
>
>
>Now one person did mention that he could measure the difference in ground
>potential.
>I'm assuming he was using a vom to measure the voltage between a live
>circuit and the ground rod.
>Or is there a better way of doing this.
>
>The rfi I experience does not shut down the computer, it doesn't effect the
>keyer or DVK.
>It does interfere with the cable TV on some frequencies. But it does tear up
>the phone even though I have both Bell junction box filters and filters just
>before the instruments.
>
>But listening to myself using the MP's monitor in both cw and ssb exhibits
>harshness that varies with band in use.
>
>So what mistake have I made?
>I can't help but think that if I find that one error, the improvement will
>be dramatic.
>This has been driving me nuts for a long time.
>
>Plus it will help me work that one last DX entity I need even if Wife is
>talking on phone or watching TV.
>
>
>
>
>-----------------------------------------------------
>I was married by a judge. I should have asked for a jury.
>-----------------------------------------------------
>
>W9OL, Bill H. in Chicagoland
>
>
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