[kwlug-disc] Grounding for antenna

[Khalid Baheyeldin]

My failed hope in post revolutionary change in Egypt is far heavier ...


On Fri, Jun 13, 2014 at 1:39 PM, CrankyOldBugger <crankyoldbugger at gmail.com>
wrote:

> If you need help shooting the grounding rod into the ground, just tie it
> to my belief in the democratic system:  that'll sink it for you!
>
>
>
> On 13 June 2014 13:29, Khalid Baheyeldin <kb at 2bits.com> wrote:
>
>>
>> Paul G,
>>
>> Thank you for the info.
>>
>> Do you recall where you got the grounding rod from?
>>
>> And where you rented the fence pounder from?
>>
>> Email from other thread below, in case someone browses by thread.
>>
>> On Fri, Jun 13, 2014 at 8:56 AM, Paul Gallaway <paul at gallaway.ca> wrote:
>> My antenna was clamped to the mast with metal clamp which in turn is
>> clamped to the tripod with more metal bits effectively bonding the
>> three (same as your antenna to mast, mast to mast). The tripod bolted to
>> wood frame of my roof so no direct path to earth other than the wire (or
>> through my roof...). A heavy gauge copper wire is clamped to the mast using
>> a grounding clamp [1], and then run to a grounding rod [2]. I seem to
>> recall a separate screw tie the RG6 shielding (from the coax block [3]) to
>> my mast clamp which allows for different gauge wires on the same block. My
>> ground rod was a 10' (8'?) copper clad rod pounded into the ground - it
>> will go faster with a post hammer. The length to ground from the antenna
>> should be as short as possible - in my case I had to run 20ft of cable, in
>> your case you can probably do it just about on top of your mast and use a
>> very short wire.
>>
>> Save and Replay uses a 4 foot rod so maybe the 8-10 ft rods are
>> overkill. They are also advocating 14 gauge wire for grounding which
>> doesn't sound heavy enough to me (seems optimistic that any wire might
>> carry "100's of thousands of volts" from lightning). The fence your antenna
>> is strapped to will likely absorb a fair amount of the
>> lightning strike as well which isn't a bad thing (where your house is
>> the alternative). Sayal and Research Electronics (Orion?) may carry
>> some of this stuff but you probably need to go hardware store for the
>> grounding rod. Actually, I think 2 years ago Research Electronics did
>> not have it so I found myself at the HD down the street anyway.
>>
>> [1] Something like this on your mast:
>>
>> http://www.homedepot.ca/product/1-2-in-1-in-ground-clamp-bronze-bag-of-1/910033
>>
>> [2] Something like this on the rod:
>>
>> http://www.homedepot.ca/product/ground-rod-clamp-bronze-5-8-in-3-4-in/910156
>>
>> [3]Something like this for the coax:
>> http://overtheair.saveandreplay.com/HD_Antenna_Grounding.asp
>> Seems HD also has the coax blocks so I would assume your favourite,
>> near-by hardware/DIY store would likely have all the stuff above as
>> well:
>> http://www.homedepot.ca/product/grounding-block-dual-rg6-rg59/964991
>>
>> --
>> Khalid M. Baheyeldin
>> 2bits.com, Inc.
>> Fast Reliable Drupal
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>> Simplicity is prerequisite for reliability. --  Edsger W.Dijkstra
>> Simplicity is the ultimate sophistication. --   Leonardo da Vinci
>> For every complex problem, there is an answer that is clear, simple, and
>> wrong." -- H.L. Mencken
>>
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>>
>
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-- 
Khalid M. Baheyeldin
2bits.com, Inc.
Fast Reliable Drupal
Drupal optimization, development, customization and consulting.
Simplicity is prerequisite for reliability. --  Edsger W.Dijkstra
Simplicity is the ultimate sophistication. --   Leonardo da Vinci
For every complex problem, there is an answer that is clear, simple, and
wrong." -- H.L. Mencken
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