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.
>>
>>
>>
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