Practical
Installation of a Shortened Helical Antenna
After reading the above parts of the article anyone
may decide that there is nothing complicated to make a shortened
helical antenna. It is really so. At the next part of the article
I give some advices on installation of the helical antenna in
the limited environment- on the window, balcony and the wall of
the house.
First at all it needs to find place for installation
of the helical antenna.
Place
for Installation of the Shortened Helical Antenna
Any antenna likes free space. So we need find a free
space for the shortened helical antenna. In the house that is
made of concrete such places are windows and balcony.
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The balcony usually gives a lot of opportunities for
installing of the helical antenna. Depending on the dimension
of the balcony and the things sitting inside of the balcony it
is possible to install a helical antenna with rather big sizes.
However it is cannot be the same about window. In the
window opening it is possible to install three limited design
of the helical antenna. It is vertical installation (that is shown
on Figure 17),
horizontal installation (that is shown on Figure 18), and the diagonal installation
(that is shown on Figure 19).
The best option for installation of the helical antenna
at a concrete building is the open outside wall of the building.
In this case it would be lots free space around the helical antenna.
Best solution is to move the helical antenna as far as possible
from the wall with wooden or metal mast. It is desirable that
the length of the mast would be not less than the length of the
helical antenna.
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