Cover of Dipoles: Half-waves, inverted Vs, fans and traps, built to work first time, by Eoin Kohl

Radio & AntennasAerial Works · Book 4Coming soon

Dipoles

Half-waves, inverted Vs, fans and traps, built to work first time

by Eoin Kohl

The classic wire antenna, done properly.

Paperback£14.99
Kindle£6.99
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Format
Paperback & Kindle
Pages
151
Size
8.5 × 11″, full colour
ISBN
978-1-995833-06-4

About this book

The dipole is where most of us start, and where many of us end up: simple, efficient and honest. This book builds every useful form of it, from the plain half-wave to fans, traps and loaded designs for short gardens, and shows you, band by band, how each one performs before you cut a wire.

  • Six complete builds: the half-wave, the inverted V, the fan, the trap dipole, the folded dipole and the shortened, loaded dipole.
  • Every antenna modelled in NEC2: elevation and azimuth patterns, SWR and impedance on every band, one page per band.
  • Traps and loading coils wound, measured and tuned step by step.
  • Trimming that converges: how to cut long and tune each wire without chasing your tail.
  • A side-by-side comparison of every design at the same height over the same ground.
  • Cutting lists in metric and imperial, written for UK amateurs.

Practical and honest about the compromises, it helps you choose the right dipole for your garden and build it to work first time.

Part of the Aerial Works series of practical antenna books for radio amateurs.

Inside

  1. 01Safety first
  2. 02The law in brief
  3. 03Essentials in brief
  4. 04The half-wave dipole
  5. 05The inverted-V
  6. 06The fan dipole
  7. 07The trap dipole
  8. 08The folded dipole
  9. 09Shortened and loaded dipoles
  10. 10Comparing the dipoles