#Rfx 150 10 meter amp install#

If using a tree as a support, it must be remembered that the tree will move in the wind. A little thought and ingenuity will provide a number of different options. It is possible to erect the antenna in many places, using the supports that are available or that can be erected. There even may be another suitable building. Then another support may be a pole or even a tree.

On the house it can be possible to attach the dipole to the chimney, or other high point. Often the supports may be a suitable point on a house and another support in the garden. The diagram above shows a typical installation for a ham band dipole antenna. Typical example of an HF band dipole used for amateur radio The diagram above gives the basic format for the antenna, but in reality the antenna will need to be erected between two supports. The basic half wave dipole itself is quite straightforward, consisting of a radiating element half a wavelength long and fed in the centre. This means that a 40 metre dipole can also be used as a three half wavelength dipole on 15 metres. It is also possible to have longer lengths - antennas with lengths that are odd multiple of half wavelengths long also provide a low impedance. This gives a low impedance feed impedance and this matches nicely to 50 Ω feeder. Also a dipole is most commonly found as a half wavelength dipole, although this is not the only length that can be used.įeeding the dipole at a high current point, as in the case of centre feeding a half wave dipole means that it is fed at a current maximum pint on the antenna.

#Rfx 150 10 meter amp install#

The most straightforward way to install a dipole is as a horizontal antenna, although this is by no means the only way. Wire, feeder, insulators and fixings are all that is required.īuilding the antenna and erecting it can provide a great insight into the aerials or antennas and how they work, and in this way the performance of the station can be enhanced even further. Often the items needed can be salvaged from previous antennas, or bought for relatively small cost. Dipoles are widely used on bands like 80 metres, 40 metres, 20 metres, 15 metres and 10 metres where they can provide excellent levels of performance.Ī dipole antenna can be a very effective antenna, providing a good level of performance especially if it is erected as high as reasonably possible and away from obstructions, etc.īuilding am HF ham band dipole does not have to be expensive. Build an HF Ham Radio Dipole Antenna It is easy to build, construct and erect a dipole antenna for the HF bands: 160, 80, 40, 20, 15, 10 metres, etc using a few simple components at a minimal cost and get great results.ĭipole antenna basics Current & voltage Half wave dipole Folded dipole Short dipole Doublet Dipole length Dipole feeds Radiation pattern Build HF ham dipole Inverted V dipole HF multiband fan dipole HF multiband trap dipole G5RV antenna FM dipole designĭipoles are one of the simplest antennas to build or construct and erect for the HF amateur radio bands, and on top of this they can be very effective.