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Subject:
From:
Steve Dresser <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Tue, 26 Nov 2013 21:50:23 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (130 lines)
Good point, John.  They are often there to "sweeten" the deal so the house 
gets sold with a minimum of fighting.

Steve

----- Original Message ----- 
From: "John Miller" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, November 26, 2013 21:26
Subject: Re: Re-station ground


> Not that amazing, inspectors let a lot go in my experience.
> ----- Original Message ----- 
> From: "Steve Dresser" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, November 26, 2013 8:58 PM
> Subject: Re: Re-station ground
>
>
>> Yeah, the amazing thing was that the home inspector didn't catch the
>> problem.
>>
>> Steve
>>
>> ----- Original Message ----- 
>> From: "John Miller" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Tuesday, November 26, 2013 19:07
>> Subject: Re: Re-station ground
>>
>>
>>>I have also lived in houses like that, I never trust that the electrical
>>>is
>>> grounded well enough for anything.
>>> ----- Original Message ----- 
>>> From: "Steve Dresser" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Tuesday, November 26, 2013 4:59 PM
>>> Subject: Re: Re-station ground
>>>
>>>
>>>> Colin,
>>>>
>>>> I'd caution against using the grounding of the electrical outlets as a
>>>> station ground.  I lived in a house where the electrical ground of the
>>>> outlets had 150 volts which I measured between it and a stainless steel
>>>> counter in the kitchen.  It turned out that the house's electrical
>>>> system
>>>> wasn't grounded to anything in the known universe.
>>>>
>>>> Steve
>>>>
>>>> ----- Original Message ----- 
>>>> From: "Colin McDonald" <[log in to unmask]>
>>>> To: <[log in to unmask]>
>>>> Sent: Tuesday, November 26, 2013 16:31
>>>> Subject: Re: Re-station ground
>>>>
>>>>
>>>>> you already have a ground between the tuner and the radio via the coax
>>>>> shield...
>>>>> You already have full chassis ground through the ground prong on the
>>>>> AC
>>>>> power.
>>>>> However, to avoid RF hot spots on the chassis of your equipment, it is
>>>>> advisable to use another earth ground of some kind for your
>>>>> equipment...either via a ground rod, or to the main electrical ground
>>>>> of
>>>>> the
>>>>> house such as the city side of the water meter on the cold water pipe,
>>>>> or
>>>>> connected to the ground rod used by the electrical of the house if
>>>>> there
>>>>> is
>>>>> one.
>>>>> Also, having a separate ground rod just for the station is good 
>>>>> because
>>>>> that
>>>>> can also be used for both RF and electrical ground and will help in 
>>>>> the
>>>>> case
>>>>> of a nearby lightening strike etc.
>>>>> You need to use a ground bus, and have a wire from each piece of
>>>>> equipment
>>>>> connected to that common bus...do not daisy chain the grounds 
>>>>> together.
>>>>> In
>>>>> other words, your grounding has to be paralel, not series.
>>>>> If it's electrical ground, the wire length doesn't matter at all...but
>>>>> if
>>>>> you are going after an RF ground, the length of the ground wire may, 
>>>>> if
>>>>> you
>>>>> are using a non-resonant antenna, or latter line or long wire and a
>>>>> tuner,
>>>>> effect the tuning of the antenna.
>>>>>
>>>>> Often an additional ground for the station equipment is not necesary 
>>>>> as
>>>>> the
>>>>> AC ground takes care of it, but sometimes you may need it if you find
>>>>> you
>>>>> are having issues with RFI in your audio, or excessive noise on 
>>>>> receive
>>>>> or
>>>>> if you are causing RFI to other electronics in the house or with your
>>>>> neighbors.
>>>>>
>>>>> 73
>>>>> Colin, V A6BKX
>>>>> --------------------------------------------------
>>>>> From: "Mike Ryan" <[log in to unmask]>
>>>>> Sent: Tuesday, November 26, 2013 1:10 PM
>>>>> To: <[log in to unmask]>
>>>>> Subject: Re-station ground
>>>>>
>>>>>> So if I have a ground wire running from my ATU's ground stud to the
>>>>>> back
>>>>>> of
>>>>>> the rig's ground stud, considering my rig has a built in power supply
>>>>>> and
>>>>>> a
>>>>>> 3 prong plug, this will be fine?
>>>>>>
>>>>>> Mike
>>>>>
>>>
> 

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