May be ,
Many moons ago , under the pretence of support for Sweet pea netting ,
3 short , 10 ft ish 2 inch alloy scaffold poles where sunk into the
edge of the garden with the aid of a 14 lbs sledge , about 18 inches
free , it was long ago..
They plus the base of the mast and others have been in place 30 +
years, as to the chemistry ... I know alloy reacts and forms a layer and
stops corroding , but
as to continuity etc .. something is connected out there .
I re vamped the connecting cables , as part of the earth re-works, when
the 500khz nov arrived, connecting everything that conducted to the
same earth bus-bar in the shed, with individual 35 amp conduit cable ,
plus a few hidden radials ..that gave an improvement all round .
System functions well MF to HF , the only thing that changes , when I
change
band is the Ae tuner .
73-G
G0NBD
--------------------------------------------------
From: "Chris Wilson" <[email protected]>
Sent: Tuesday, September 22, 2015 7:49 PM
To: <[email protected]>
Subject: Re[2]: LF: Ground
Hello Mike,
Tuesday, September 22, 2015
Marcin,
My experience is that a few earth rods work much better than
electrically short radials on 136kHz.
But when I operate on 160m, radials are much better than the earth
rods.
My soil is 1m of clay over chalk.
Mike, G3XDV
===========
Out here in the sticks I used to buy 2 meter long heavy galvanised
angle iron ground stakes from the electric fencing people, but today I
found they have gone up to £28 plus VAT (20%) each! I bought 3 off
35mm OD 3mm wall thickness tubular hand rails, each 3.5 meters long,
off Ebay for £54 delivered, and these will make 6 good ground rods, I
hope. I did consider 22mm copper water pipe, but the moderns stuff is
so soft and thin walled I worried about getting them in, I can't
realistically run a water hose to some places I want to put them in,
to try the pressurised water down them, to erode the soil away, and
digging down say 4 feet is messy as I would at best have a hole 18 inches
square, and possibly bigger if the soil started to collapse. The
tractor on the lawn with the post hole borer is a definite no no, the
wife would skin me alive if I left wheel ruts!
Anyone know how much better galvanised "clean" rods are compared to
uncoated mild steel, that will rust in weeks?
--
Best regards,
Chris mailto:[email protected]
|
