[kwlug-disc] Grounding for antenna

[Khalid Baheyeldin]

Thanks.

For the coax grounding block, do you insert it right after the antenna
(before the pre-amp), or do you do it after the pre-amp? Or is it all the
same?


On Fri, Jun 13, 2014 at 11:27 PM, Paul Gallaway <paul at gallaway.ca> wrote:

> Pretty sure I got the rod from Home Depot and the post/fence hammer
> was one I borrowed from work. A sledge hammer would probably work also
> but you'd have to go slow to prevent bending it. In this area it could
> range from very easy to very difficult to do depending on the soil
> type in your yard. The water hose/jet method should work well with
> stuff you probably already own, too.
> ~pAul.
>
> all good things, all in good time...
>
>
> On Fri, Jun 13, 2014 at 1:29 PM, 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
> > 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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> >
>
>
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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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