"gareth" wrote in message
...



All is rosy now in the garden,and thanks for suggestions.

Now, all I need is a 1/4" or so plug and socket so that I can quickly attach
the
ground terminal to whichever rig is now powerpoled to the ATU and the PSU.

I'm using the green/yellow 10mm sq stuff used for earthing in Brit, and 'tis
a bit
unwieldy to keep fiddling with the wing nut attachment on the back of each
rig.

Shack is upstairs, front bedroom, earth is ground stake and a fan of
microbore tubing apread out over the front lawn. House earth is a TT
installation so no
probs with PME, etc.

On 01/18/2016 07:13 PM, gareth wrote:
"gareth" wrote in message
...



All is rosy now in the garden,and thanks for suggestions.

Now, all I need is a 1/4" or so plug and socket so that I can quickly attach
the
ground terminal to whichever rig is now powerpoled to the ATU and the PSU.

I'm using the green/yellow 10mm sq stuff used for earthing in Brit, and 'tis
a bit
unwieldy to keep fiddling with the wing nut attachment on the back of each
rig.

Shack is upstairs, front bedroom, earth is ground stake and a fan of
microbore tubing apread out over the front lawn. House earth is a TT
installation so no
probs with PME, etc.
=========
RF earth for an upstairs shack can be effectively done with an "earth
tuner"
e.g. a series tuned variable C /variable inductor with a RF current
sensor ie wound toroid/
diode /mA meter and potmeter, having say the inductor end connected to a
random length of wire running on the floor in the room (under carpet )
The tuner needs to be adjusted for max RF current (low impedance).
Only disadvantage compared with a straight earth wire into the ground is
the requirement to retune when changing frequency.

The above is often used in apartment buildings where a direct earth wire
is not practical.
I made such a tuner myself for demonstration puposes ,but MFJ make them
(Artificial Ground Model MFJ-931)
See also Practical Wireless Mag , October 1990 ,page 21) for home brewing.

Frank , GM0CSZ / KN6WH

"gareth" wrote in message
...

Now, all I need is a 1/4" or so plug and socket so that I can quickly
attach the
ground terminal to whichever rig is now powerpoled to the ATU and the PSU.

.... and I'm not thinking straight, because the obvious answer is 45 amp
GREEN powerpoles !!!


Doh!

"gareth" wrote:

I'm not thinking straight


Story of your life, OM.

--
STC // M0TEY // twitter.com/ukradioamateur