Szczepan Bialek wrote:
Radio on the Moon has the "earth connection". The Moon is smaller than the
Earth.
Do you think that "the earth" must be giant?

Did we see the Apollo crew hammer a rod into the moon for the purpose
of connecting their radio system to it?

Your mobile phone has earth connection, radio on satellites and planes
have earth connection because they are on the chassis. Accept this and
move on.

You think "a chassis" is "earth connection"?
What is your definition of "earth connection"?

Some antenna systems do have an earth connection, many don't.

All must have.

You are being told NO, by people that know what they are talking about,
and you, the ultimate nitwit, are insisting that it is wrong?

If so, why are you asking the question at all?

Some have them in order to work correctly, some have them for protection
against a lightening strike or a build up of static, some for both. Many
have no earth connection at all.

All must have for protection against the build up of static.
"Static electrical charge can build up to high values, even at times of no
thunderstorm activity,"
S*

On a 628m tall mast, yes. But not on a cellphone.