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Subject:
From:
John Miller <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Wed, 6 Jun 2007 23:03:34 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (184 lines)
I like my artificial ground. I'm stuck on the second floor, at a third floor 
height here, my brother took over the basement and everyone smokes down 
there which I hate more than almost anything in the world so I think I'm 
staying in the corner of my bedroom as long as I'm here. It's tight and 
plays hell with the circuit breaker in the summer with all the stuff in here 
but so far, so good.
----- Original Message ----- 
From: "Steve Dresser" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, June 06, 2007 9:51 PM
Subject: Re: RFI problem.


> Hi Anthony,
>
> I had my shack in the uncivilized basement for years, and I like it up 
> here
> on the second floor, away from the rest of the house, and right near my
> office.
>
> As I recall, there was nothing in the specs for my antenna about critical
> lengths for ground wires, so I think I'll try using a coax and coupling
> capacitors as a lead between the station ground and the earth.  I doubt it
> will solve my RFI problems, but it may make the antenna play a little
> better.
>
> Steve
>
> ----- Original Message ----- 
> From: "Anthony Vece" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, June 06, 2007 17:20
> Subject: Re: RFI problem.
>
>
>> Hi Steve;
>>
>> You need to re-configure the length and the possession of the ground 
>> wire.
>>
>> Also, see what kind of ground wire the antenna calls for and re-examine
>> the
>> length.
>>
>> They should have something about it in the specs.
>>
>> And, if your shack is on the second floor, maybe you could re-locate it 
>> on
>> the first floor or better yet in the basement.
>>
>> This is my opinion and I found that this is what worked for me.
>>
>> 73 De Anthony W2AJV
>> [log in to unmask]
>> ECHOLINK NODE NUMBER: 74389
>>
>> ----- Original Message ----- 
>> From: "Steve Dresser" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Wednesday, June 06, 2007 11:29 AM
>> Subject: Re: [BLIND-HAMS] RFI problem.
>>
>>
>>> Anthony,
>>>
>>> I'm sure that's possible, but I trust an earth ground more than I trust
>>> grounding to a cold water pipe.  How can I find out, and how do I get 
>>> rid
>>> of a ground loop if there is one?
>>>
>>> Steve
>>>
>>> ----- Original Message ----- 
>>> From: "Anthony Vece" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Tuesday, June 05, 2007 22:27
>>> Subject: Re: RFI problem.
>>>
>>>
>>>> Hi Steve;
>>>>
>>>> You may have inadvertently created a grounding loop.
>>>>
>>>> 73 De Anthony W2AJV
>>>> [log in to unmask]
>>>> ECHOLINK NODE NUMBER: 74389
>>>>
>>>>  ----- Original Message -----=20
>>>>  From: Steve Dresser=20
>>>>  To: [log in to unmask]
>>>>  Sent: Tuesday, June 05, 2007 10:13 PM
>>>>  Subject: Re: [BLIND-HAMS] RFI problem.
>>>>
>>>>
>>>>  John,
>>>>
>>>>  You make a good point that a cold water ground isn't necessarily a =
>>>> real=20
>>>>  ground.  On the other hand, I use three grounding rods, and I still =
>>>> have the=20
>>>>  problem.
>>>>
>>>>  Steve
>>>>
>>>>  ----- Original Message -----=20
>>>>  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.=20
>>>>  > 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=20
>>>>  > 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=20
>>>>  > 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=20
>>>>  > set
>>>>  > of headphones in my case. The sighted hams just shut them off and =
>>>> leave it
>>>>  > that way.
>>>>  > ----- Original Message -----=20
>>>>  > 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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