This is the IK4GBU - VERTICAL DIPOLE antenna, fixed on a fishing rod.

The RF, coming from the TX, is going up inside the coaxial cable and is using the upper wire with coil as one half of a dipole.

The bottom half of the dipole is done by the outside RF currents on the coaxial shield down to the RF choke and the side coil and wire.

Very simple and effective without charging too much the fishing rod !

Some initial nice long path dx:

25-1-2013 after 9 months I reached with this antenna the DXCC 100 confirmed by LOTW !!!!!!!!!!  Worked 155.

so I was starting 1964 as I1BIH:

and from 1971 as DJ0XN: