I.G.: Below you can see SWR (at 350- Ohm Terminal)† for 88- Feet Dipole Antenna placed at 10 and
20- meters above real (simulated by MMANA) ground. As you can
see the 88- feet antenna really has at the amateur bands SWR/Impedance
that could be matched with simple ATU.
As you can see, the 88- Feet Dipole Antenna is much better matched with
350- Ohm feed line in compare to 44-Feet Dipole Antenna. It is
only proved the old amateurís wisdom on antenna- the bigger the
On my look the 88-Feet Antenna is more preferable, but room for this one!
, using the standard accepted formula for calculating† the ¨approximate¨ length of a wire
dipole for the HF frequency† range
from about 5 to 25 megaHertz....† 143 / frequency in megahertz† let us play with a little math amigo !!!†
7.15 for the half wave resonance on the 40 meters† band will yield exactly 20 meters , so 10
meters on each side† or
moving to Imperial British Measures 65.6 feet overall†
or 32.8 feet on each leg. (Figure 3 shows the 66- Feet Dipole Antenna.)