ARLA/CLUSTER: Antenas Urbanas por Igor Grigorov, RK3ZK

[João Costa > CT1FBF]

Let's let Igor tell you more about this new book, URBAN ANTENNAS -
Volume 1 written here in his own words:

"...The increasing urban mode of life has touched the radio amateur
hobby to a much greater degree than it has most other hobbies.
Urbanization of the world's population is growing very rapidly. At the
start of the 20th century only 14% of the Earth's population lived in
cities. Then, in the 1960's more than 50% lived in cities. Now, at the
beginning of this, the 21st century, more than 75% of the Earth's
population lives in cities.

In the USA, at the beginning of the 21st century, more than 78% of
population lives in cities, and one-half of the USA population now
lives in huge cities having more than one million residents.

It is very true that an effective antenna is necessary for radio
operations. And it is also true that any effective antenna requires
that it be located in a good open space, but space is usually not
available in a city. Let's open many of the old communications and
engineering books that refer to antennas and see what kinds of
antennas they have to offer for radio amateur use. There we will find
many effective ones, such as the half-wave dipole, the quarter-wave
vertical, the full-size quad, along with many other remarkable
antennas that are simple to set-up, and they all provide excellent
operation. But, alas, they all require a place to mount them! "....

Urban Antennas:
http://www.antennex.com/Sshack/urban/urban.htm