VERTICAL DIPOLE ARRAYS (VDA)
ATTENTION: I have NO PERSONAL EXPERIENCE with DVA's.
All of the information in this section of my web is 3rd party information.
Most is from very reliable sources.
Never-the-less: DO YOUR OWN DUE DILLIGENCE
Vertical Dipole Arrays (VDA's) have been used very successfully by DX-peditions, such as VK6DX (Ducie Island).
Keep in mind that these operations were located directly at sea level.
The outstanding performance experienced with VDA's during these operations is probably not obtainable when using a VDA in your own back yard.
FOR DETAILS OF VERTICAL DIPOLE ARRAYS, SEE: