Balun and RF- Choke of
the Helical Antenna
Antenna was tested in the Air. I found that SWR began to float through some times
at 100 W going to antenna. However at 50 W going to antenna everything
was OK. So I used to only 50 W with the helical antenna. I was
very satisfied with the antenna. I did the SSB QSO on 160 and
80 meter (without the antenna I may work on the bands only CW
or digital) with Europe and Hawaii. 40 and 30 meter bands as well
Second Design of the Helical Antenna
Why was the second design coming? Was the first design
of the Helical Antenna work bad? No, the first design was great.
However a strong Canadian wind in March 2017 broke the antenna.
I decided restore this one. Figure 4 shows the second version.
The second version of the Helical Antenna was a little
differs from the first one. It was used new fishing rod in 6 meter
length. I used four sections of the Fiberglass tubes for the antenna
mast. Along the mast it was wound 40 meters wire. It was used
the same wire in diameter of 14- AWG. Gap between the turns on
the mast was roughly equal to diameter of the fishing rod/mast
where the wire was wound. Antenna was installed on the front yard
of my house. Metal net in 240 square feet (24 square meters) was
used for the ground of the antenna.
Feeding of the antenna was the same as for the First
5 shows the antenna
on the front yard.
Figure 6 shows how
the two wire line is going from antenna to the wall of my house.
Figure 7 shows the two wire line on the wall of my house
together with Balun and RF Choke.
Second Version of
the Helical Antenna on the Front Yard
Two Wire Line going
from Helical Antenna to the Wall of my House