A Full-Size / Half-Space Antenna

Horizontally-Polarized / Omni-Directional 

GAIN:  -4.5 dBd

GAIN PATTERN:

​NOTE:  These are just theoretical examples and do not fully represent reality. 

In reality, a low 80m dipole radiates much more off of its ends.  Never-the-less,

a trend may be seen here.

• Although the Dipole has a gain over the Halfback of 4.5 dB, it is only in two directions; off the sides of the dipole. 

• Off the ends of the Dipole, the Halfback has a couple of S-Units gain over the Dipole.

This good omni-direction radiation pattern makes the Halfback

a great general purpose antenna for 80m communications, 

occupying just half the space of a full-size dipole.

I have only built this antenna once, only used it at one location.

It needs to be reproduced and tried at several other locations,

so that we can gather more experience on its performance.