Light, easy and quick to install. comes complete of a handy Handbag and two "Stubs" to vary the resonating frequency.
Handles easily 100 watts, and does not need a tuner on the indicated bands. On other bands can be used with a tuner.
New, updated version with a lighter Trap and two Stubs to fine-tune the resonating frequency!
Today many Hams encounter big problems when they want
to install a good antenna. Many live in an apartment building, or in an area where the rules do not allow you to install a fixed antenna that gives good performance.
So many, by necessity, must be satisfied to operate
in portable. They therefore need an antenna that is easily transportable, can be installed in a few minutes, and give acceptable performance, well comparable with those of many fixed
Moreover, to operate in Portable allows you to
combine our passion with the possibility to take your family to a nice trip, maybe in a nice place, where the children can run in the open air while we Hams can finally find satisfaction in our
Finally, if you could find an antenna that you can use, maybe occasionally, even at home that would be the best: an antenna that you can quickly run from a window to a nearby tree, or another building, or simply to a telescopic pole (there are many made of fiberglass, lightweight and quick to assemble)… …. And then it desappears in a few minutes.
This antenna exist: it is the classic "half-wave dipole" powered, however, at one end rather than at the center.
The problem that arises is in the adaptation of
impedance; at the end of the dipole the voltage is maximum, the current is minimum and the impedance becomes some thousand ohms: not easy to adapt to the 50 ohm required by our Rig, and even if
we count on the ATU of our Rig we will have to deal with a very high SWR, strong losses in the cable and probable interference TVI.
We have thoroughly studied this issue; we have done hundreds of tests, built dozens of Balun and Unun, and in the end we created our End Fed Multiband Antenna.
Here are some of its features, which make it unique:
If you need to use it outdoors, you just have to find the tallest tree in the area, throw a string through the branches and knot it to the end of the antenna wire. On the other side you can safely fix the Transformer Unit to your car, or to another tree, anything. Spread the coaxial cable all over to the ground, possibly in the opposite direction or perpendicular to the wire antenna and you'll be ready to operate. If you want to use it at home, take care to leave as much as possible of the coax cable dangling out the window.
The length of the antenna is 23 meters (76 feet) and the weight is 850 grams (30 ounces)
A handy, soft carrying bag with shoulder strap is included.
You can buy it with confidence; we guarantee that it is a good Antenna, and will not disappoint you.
The graph above shows the SWR across the whole HF Spectrum, and it was made with an Array Solution AIM4170 VNA.
The red line is the SWR as it comes (this particular antenna was cut for the higher part of the bands, on request) and the orange line shows the SWR as modified by adding a
The Stubs are very easy to install: just plug one on the Matching unit, using a Banana Plug.
Two stubs are included: 30 cm. and 15 cm. You are encouraged to experiment, in order to fine-tune it for any particular installation!