Re: LF: vertical/loop

["Rik Strobbe" <rik.strobbe@fys.kuleuven.ac.be>]

Hi Mal,

> The facts are  being distorted
> because of local environmental issues instead of comparing the two
> antennas on LF where both systems are small physically compared to the
> frequency. 
> Only those with sufficient unobstructed space
> are in a position to test one against the other for a true
> accessment.

Under perfect conditions nor the vertical nor the loop would have any
losses. At low take-off angles the vertical would have a 3dB gain over
the loop, at heigher angles the loop can be significantly better than the
vertical.
But unfortunately these "perfect conditions" do not exist, one
just can try to get close. 
So whatever is taken as the definition of
"sufficient unobstructed space"
and  "for a true accessment", it is subject to
interpretation.

In the days of Napoleon the definition for 1 meter was given as
:
"The distance between the 2 gold plug in a certain platina-iridium
bar the was kept somewhere in Paris (at 0 degrees C)."
(but meanwhile there is a more scientific definition)

In analogy the definition of "sufficient
unobstructed space" could be : 
"A certain property in northern England, sized
several acres and tree free for
antenna testing"

With a smile,

73, Rik  ON7YD