INDEX Page. 23 of 92
5. EXTERNAL GROUND CONNECTION
To reduce TVI, BCI and other RF problems in the shack, it is best to connect the amplifier
to a good RF ground. (Note that an RF ground is different to an electrical ground which is
necessary for the prevention of electrical shock.)
The inductance of such a connection needs to be low, so the connection to ground should
be as short and direct as possible.
Large-section copper conductors should be used for this purpose.
Terminating the earth connection with a small metal plate is suggested.
The best solution is to have several ground stakes, driven into the ground and these
ground stakes need also to be tied to your main grounds.
Good results can often be achieved by using correct earthing clamps, connected to the
main water supply pipe (attention, many water pipes are now in plastic).
DO NOT use central heating pipe work.
AVOID the electric circuit ground of the building (to be used for 50/60 Hz safety only).
WARNING! DO NOT connect to gas pipes as there will be a danger of explosion.
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