I'm not saying don't tie the antenna ground in to the electrical ground, if
possible though I wouldn't go crazy over it but the RF ground needs to be
separate. I've seen the electrical code and I don't think it covers RF
grounding.
----- Original Message -----
From: "Ron Yearns" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, April 15, 2012 4:14 PM
Subject: Re: grounding question
> Well as I understand the Code the next choice for tieing the new ground
> rod
> to the electrical grounding system and the preferred is a bonding wire
> between the two ground rods equal in size to the conductor from the
> original
> ground rod that runs into the house or in this case apartment grounding
> bus.
> The theory is to keep potential difference, voltage, between equipment
> grounds, metal to a minimum. Single point grounding is what the National
> Electric Code is trying to accomplish. Communications equipment and
> circuits including antennas is covered in chapter 8 or Article 800 of the
> code book. Circuit grounding , multiple ground rods and related are
> covered in other sections.
> Ron
>
> Ron
> ----- Original Message -----
> From: "John Miller" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Saturday, April 14, 2012 7:22 PM
> Subject: Re: grounding question
>
>
>>a wire from a lightning arrester to an outlet in the house? are you trying
>> to get him killed? even with the ground rod, if that takes a direct hit,
>> it's going to go in the house, wipe out the whole electrical system and
>> most
>> connected to it and burn the place down at best. I've said it before and
>> I'll say it again, you never take a lightning ground inside the house.
>> Keep
>> the lightning outside, you'll live longer.
>> ----- Original Message -----
>> From: "Ron Yearns" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Saturday, April 14, 2012 8:04 PM
>> Subject: Re: grounding question
>>
>>
>>> Is the 14 foot pole on the roof or ground? The National Electric Code
>>> calls
>>> for all metal poles pipe systems, , antenna masts to be grounded and
>>> bonded
>>> together to the main electrical grounding electrode. Gas piping is
>>> excluded.
>>> In your case I would envision a coax coming down the exterior wall being
>>> attached to a lightening arrester outside your window, then the coax
>>> would
>>> feed into the house and radio via the window. I would sink the 9 foot
>>> rod
>>> directly under the arrester and attach the two together with a number
>>> eight
>>> or six wire if possible.and also run a wire from the arrester into the
>>> house
>>> and fasten it to the cover screw of the closest grounded outlet. that
>>> bonds
>>> it to the electrical system. The coax will be grounded to the antenna
>>> mast
>>> if it is on the roof and fastened to it. . If notfastened to the mast
>>> but
>>> using a standoff insulator then a separate wire can ground the mast and
>>> follow with the coax down to the lightenen in arrester.
>>> Ron
>>> ----- Original Message -----
>>> From: "Tom Brennan" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Saturday, April 14, 2012 5:44 PM
>>> Subject: grounding question
>>>
>>>
>>>> I'm living in an apartment where they've agreed to let me put up an
>>>> antenna on a
>>>> 14ft pole but they only want me to have a single grounding point for my
>>>> system.
>>>> I have a 9ft ground rod but I need both an rf ground to the radio
>>>> itself
>>>> and a
>>>> ground for my lightning arrester on the antenna. Is there any way to
>>>> ground
>>>> these both to a single ground rod?
>>>>
>>>> Tom
>>>>
>>>>
>>>> Tom Brennan KD5VIJ, CCC-A/SLP
>>>> web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html
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