"Stephen Thomas Troll" wrote in message
...
On Fri, 7 Sep 2018 09:21:15 +0100
"Jim GM4DHJ ..." wrote:

On 9/7/2018 9:06 AM, Stephen Thomas Troll wrote:
On Thu, 6 Sep 2018 18:14:51 +0100
Gareth's Downstairs Computer
wrote:

On 06/09/2018 17:22, Jeff Liebermann wrote:
On Thu, 6 Sep 2018 14:46:33 +0100, Gareth's Downstairs Computer
wrote:

Interesting because between the house TT earth, a steel rod and
the copper RF earth is now about 0.4 volts, making the ohmmeter
go haywire trying to measure the resistance between them.

That's only true if there's an electrolyte between the copper and
steel. When bonded together, there's no galvanic action or
voltage. If you're using two or more ground rods, all electrical
codes specify that they need to be connected together with some
heavy gauge wire.

Separate RF earths to reduce noise on RX and protect family members
from RF hazard if touching central heating radiator 1/4 wavelength
away.


Gareth, get some double glazing, Gareth, that would stop them
huddling around the radiators, Gareth.


Gareth, Thanks, Gareth.



I had a radiator that rusted through....just thought you would like
to know that ....


Jimbore, too tight to buy inhibitor, Jimbore?



Jimbore, Thanks, Jimbore.

it was at the van and the previous owner didn't even have anti freeze in it
never mind inhibitor....no big deal the rad was £20 at screwfix.....