John,

Since my shack is on the second floor, there's at least ten feet of wire 
between the station ground and the earth.

Steve

----- Original Message ----- 
From: "John Miller" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, June 05, 2007 22:45
Subject: Re: RFI problem.


> How long is your ground run?  really any more than 3 or 4 feet can 
> actually
> act as an antenna. Granted, with computer speakers, nothing's fool proof,
> and I believe what kind of ground you have around you, plays a role too. I
> know with a ground plain, they don't seem to work as well near the water,
> I'm told near beaches and stuff though I find the opposite so I'm sure 
> that
> plays a role, but some times, you just can't beat the problem.
> ----- Original Message ----- 
> From: "Steve Dresser" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, June 05, 2007 10:13 PM
> Subject: Re: RFI problem.
>
>
>> John,
>>
>> You make a good point that a cold water ground isn't necessarily a real
>> ground.  On the other hand, I use three grounding rods, and I still have
>> the
>> problem.
>>
>> Steve
>>
>> ----- Original Message ----- 
>> From: "John Miller" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Tuesday, June 05, 2007 11:40
>> Subject: Re: RFI problem.
>>
>>
>>> From my experience, some computer speakers, you're not going to fix it.
>>> The
>>> amplification in those is so cheap and garbage and unfiltered or
>>> anything,
>>> it's just something you'll have to deal with more than likely. Grounding
>>> to
>>> a cold water pipe may not help either though as most often if you do it
>>> after the meter, supposedly the meter can isolate you from that actually
>>> grounding though I don't always trust that, but worse than that, a lot 
>>> of
>>> times either the electrical can be grounded there which should make RFI
>>> issues worse and when I was new and starting out, my water pipes acted 
>>> as
>>> part of the antenna when I did that. It never showed up on the SWR or
>>> anything, but it caused a lot more RFI than it was supposed to fix and 
>>> my
>>> electrical is grounded separate from the water pipe because I have a 
>>> well
>>> and most of the line from the well to the tank in the cellar is PVC
>>> anyway
>>> though I didn't know that at the time.
>>> Short version is though, half the hams I know, myself included go 
>>> through
>>> computer speakers in some way, shape or form and there's really nothing
>>> most
>>> of us can do about it, a lot of us around here have tried everything
>>> there
>>> is to tru and nothing helped short of just turning them off and using a
>>> set
>>> of headphones in my case. The sighted hams just shut them off and leave
>>> it
>>> that way.
>>> ----- Original Message ----- 
>>> From: "Richard French" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Tuesday, June 05, 2007 11:26 AM
>>> Subject: RFI problem.
>>>
>>>
>>>> Hi list.
>>>> I grounded all my equipment to a cold water pipe, but I still come
>>>> across
>>>> my
>>>> computer speakers.
>>>> It's the only thing in the house I ever had RFI problems with.
>>>> Any suggestions would be greatly appreciated.
>>>> Thanks in advance, and 73.
>>>
>>>
>>>
>
>
>