"Szczepan Bialek" wrote in message
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"Wayne" napisal w wiadomosci
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"Szczepan Bialek" wrote in message
.. .


"Wayne" napisal w wiadomosci
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"Szczepan Bialek" wrote in message
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On Friday, April 26, 2013 12:38:06 PM UTC-5, Irv Finkleman wrote:
snip

Maybe SB can explain the difference between a monopole with a single
ungrounded radial, and a dipole.

Each radial, grounded or not (but connected to the shield of the coax),
is the ground.
The Earth, the Moon, a satelite and each piece of conductor is ground
for antennas. Radial is one of them.
Ground must be adequate to kW.

What if the single ungrounded quarter wave radial is in line with the
quarter wave radiator?
Is it still a monopole?

# Of course.

Wow...you gave a lot to digest.

Just to understand the discussion, let's address the monopole with one
radial.

Assuming the monopole is 1/4 wave long, and has a 1/4 wave long radial.
The radial is in line with the monopole. Everything is ungrounded.

# The radial connected with the shield of the coax is the ground.


How does that configuration of a monopole with one radial differ from a
dipole?

The true horizontal dipole (electrically symmetric) radiate in one direction
only. A monopole in all directions.

So a half wave wire broken at the center is a monopole with a single
radial if it is fed directly with coax?

# Yes. The one leg is the radiator and the second is a ground (like a
# satellite chassis).

So with direct coax connection, one leg radiates and the other leg is
ground?

Would you be willing to touch the end of the "ground"/"radial" wire while
transmitting?