Tunner antenna with coil with
caster and 4 CV isolated
Has a family look with the MJF974 it uses particular material that is unfortunately not easy to find
post 16 Nov 2019
Antenna Transmatch tuner Links
Right view showing the variable traps and series connected 8:1 verniers for an effective ratio of 64:1
Depending on the antenna length and the capabilities of the ATU antenna tuning unit, the system can be adjusted from 1.5 to 30 MHz. It is therefore a very flexible and broadband system
An antenna tuner for coaxial cable powered resonance antennas, such as beams and verticals for 10 to 20 m, can easily be made with normal components
The tuner was built in an aluminum project box. Various holes were drilled in the box for mounting all of the components. When laying out the parts, leave plenty of room around the sides of the components to prevent RF arcing
The Balanced Universal ATU System. The system is intended to accommodate balanced antenna systems transmitting on a very wide frequency spectrum, ranging from 160 m band up to 10 m band