Re: [HCDX]: Grounding!
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Re: [HCDX]: Grounding!



I have no idea of where you live or the soil conditions.  The best soil
conditions would be moist clay like and the worst being sand.  The more
moisture, the better.  One really important thing is to not use bare copper
stranded wire as the wx will kill it in no time.  Make sure it is plastic
coated and I would go the extra bit and silver solder all connections you
can.  Use a good quality coax cable and no junk from the shack. (RS).  You
want to ground everything, receivers, coax and the works.....  7 rods spaced
about 1 meter or less apart will work very nicely.  Two feet might be the
best.  7 rods might be a little over kill but hey, if you feel strong, go
for it.  If using clamps I would silver solder all connection wires and
pipes as silver solder will cut down on much of the noise and also a better
connection.  I am only using 3  one meter solid copper rods.  One of them is
at the base of a drain spout for maximun moisture.  I have had to replace
the main ground cable once so far in 5 years.  Rotted right off.  Now using
single "0" stranded plastic coated cable.  All silver soldered together and
everything in the shack is grounded to this cable.  Even the bench.  The
ultimate is to use a screen under the sod as it will achieve the best ground
possible but an incredible job and expense.

Hope that is of some help
Bob Montgomery
Levittown, PA  USA
-----Original Message-----
From: Alf Aardal <alfardal@xxxxxxxxx>
To: hard-core-dx@xxxxxxxxxxxxx <hard-core-dx@xxxxxxxxxxxxx>
Date: Tuesday, January 12, 1999 4:53 PM
Subject: [HCDX]: Grounding!


>Hi!
>Since I'm in the preparations of making a solid ground system..I would
>like to hear other dxers experience with such a grounding system or
>similar....or comments if the system is ideal or what!
>
>My grounding system will consist of 7 copperpipes(tubes) appr.1-1.5
>meter long,placed in a radius of 2 meter,with one pipe in center as
>main-connection.Length of the feed in of the ground wire is appr.15-20
>meters.     My grounding system for beverages consist of the
>same..except with 5 pipes...and the are connected from each pipe to
>center with ordinary thick copper wire.
>
>But my questions are:
>Is 7 pipes enough for a solid base....should the 6 pipes in the radius
>of 2 meters be connected together as well..not only to the center
>pipe. Would there be any advantage using coaxial cable like the RG-213
>between the pipes to eliminate noise? The plans are also to use
>RG-213/RG58 C/U coaxial as the feed in...any advantages here??  The
>coax will be buried 5-10 cm under ground.
>The coax shield and inner wire is shortcuted and connected to
>mainpipe...while its only the inner wire thats used to connect to the
>receiver!
>
>Inside connections are to a copperplate..with further distributions of
>ground to my receivers.
>But...since I would like to use the coax..for reducing noise...I guess
>I have to use coax from the copperplate to the receivers as well...but
>should I leave the shields open from the copperplate into the
>receivers??
>If any have further suggestions on how to improve the system...or
>comments on the use of coax as lead in... if there is any help using
>it...would there be any reduction of noise etc...I would really
>appreciate the help!
>
>73's
>
>Alf Aardal
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This is a message from "Robert Montgomery" <RMonty3@xxxxxxxxxxxxxxxx>
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For more information, please check http://www.iki.fi/rko/hard-core-dx/
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