Overview:
VHF / UHF Antennas contains both the basic theory and constructional details for many antenna designs. Aimed primarily for the radio amateur, the book takes the reader through the essentials in an easy to understand fashion. Antenna fundamentals as well as vital information about feeders are included. Chapters are then devoted to different types of antenna from dipoles to Yagis, and verticals to log periodic antennas giving details of the way in which they work and constructional details for a variety of designs. The final chapters in the book cover measurements that can be undertaken and installation techniques. The book is a gold mine of information for anyone wanting to understand more about antennas for the VHF and UHF bands as well as constructing them. As such it will be a valuable resource for anyone interested in antennas whether newcomer or experienced hand.

Contents:
Chapter 1 Basic concepts: Electromagnetic wave, antenna operation, feed impedance, directivity, gain, polarisation, radiation angle, stacking and baying.
Chapter 2 Feeders: characteristic impedance, standing waves, velocity factor, feeder loss, types of feeder, balanced and unbalanced, matching, coax specifications, connectors.
Chapter 3 The dipole: Basic dipole, folded dipole, quick and easy dipole, VHF FM dipole, 50 MHz dipole, 50 MHz rotatable dipole, crossed dipoles, horizontally polarised omni-V, halo and mini halo.
Chapter 4 The Yagi: Design, gain, feed impedance, stacking Yagis, PA3HBB / G0BZF portable three element 6m Yagi, G3ROO 5 element 70 cm Yagi, VHF FM Yagi for indoor use.
Chapter 5 The Cubical Quad: The quad antenna, current and voltage waveforms, element spacing, gain, Easy 3 element quad for 2 metres, G3ROO 6 metre 2 element quad.
Chapter 6 Vertical antennas: Quater wave vertical, folded element, radiation pattern, 70 cm vertical, five eighths wavelength vertical, the colinear antenna, J antennas, PA0HMV twin band vertical, rubber duck antenna, car mounting of vertical antennas.
Chapter 7 Wideband antennas: The discone, operation, log periodic array, a log periodic antenna design, the log periodic Yagi, G3FDW 8, 5, and 7 element designs, G3FDW 10 element 144 MHz log periodic Yagi, G3FDW multiband log periodic Yagi
Chapter 8 Measurements: Standing wave ratio meters, simple VSWR bridge, Dip meter, G3WPO FET dip oscillator, measuring antenna resonant frequency, measuring the electrical length of a feeder, feeder impedance, dip meter as a field strength meter, noise bridges.
Chapter 9 Practical aspects: Choice of location, antenna height, internal antenna systems, chimney mounting, masts and towers, choice of materials, wind loading, stacking antennas, avoiding interference, safety.

Published by Radio Society of Great Britain, paperback, 240 by 174 mm, 120 pages, ISBN 1-872309-76-3

This paperback book is ideal for anyone interested in antennas for the VHF and UHF bands, particularly those interested in amateur radio.