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SIMPLY ABOUT RADIO
AMATEURS, OM, HAM Who are Them - Story Trace - Nowadays - Home Page
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Who are them ? |
Radio
amateurs are people whose main occupation or first job has nothing to do
with the radio and the electronics, but nowadays many radio-amateurs are
professional technicians or engineers. We are not afraid of being
contradicted in saying that there are more men than women and that nearly
the three quarters of the amateur radio operators of all the world are
concentrated in the U.S.A. and Japan: maybe because the great technical
and technological development influences their activity. Reading the
Italian Law "... the radio operator must practice its activity
maintaining the content of his own transmissions limited to arguments of
technical nature or private communications for which to resort to public
services such as the telephone, telegraphic or postal service is not
justified, given the insufficient importance of such matters." The amateur radio operators who belong to the most numerous groups of emergency radio have been engaged in the participation in locality hit from calamity for decades, putting to disposition their operating and technical ability. Another "social" aspect of this pastime is that many disabled persons having the possibility of insertion in the daily paper or job limited by their handicap, find here the possibility to establish contacts of simple or intense friendship without problems of frontiers.
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The
amateur radio operator activity started at the beginning of 20th century:
it is one of the most ancient activities in the field of
telecommunications. Guglielmo
Marconi can be considered the first radio amateur and radio operator of
the world not only from a scientific but also from a chronological point
of view. As a result of the research on physics and electricity in the XVI
and XVII centuries, he was the one who created the first system of
telecommunication with Hertzian waves that were able to receive and to
transmit messages via radio in 1895. The
radio amateur activity was controlled with crescent suspicion right from
the start in Italy by the authorities that forced the first operating
radios to exercise secretly their passion until the Second World War. In
1946 the Ally authorities (the radio-amateur movement had developed freely
in their countries) who occupied Italy therefore they emitted the first
temporary permissions in Italy; but with the peace treaty and the return
of the Italian authorities new and strong limitations were introduced.
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A
radio-amateur needs the possession of the Authorisation from the Ministry
of the Communications to be able to operate on the bands of frequency
assigned to the service. The Ministry authorises the amateur radio
operators to communicate each other using the Morse code (the telegraphy,
CW), the vocal way (telephony, SSB, FM, AM), and recently the digital
transmissions (radio + PC, like as SSTV, Slow Scan TeleVision, ATV
Amatorial TeleVision, RTTY Radio Tele Type, and AMTOR, FEQ, PACTOR, GTOR).
he
licence forces the radio-amateur to operate on bands of frequency assigned
to this specific service by rigorous international conventions. The same
licence assigns also a precise personal nominative: IK5ZTT is mine.
The first part of nominative (IK is the prefix) is assigned in agreement
with an international rules fixed from the regulations for all the nations
of the world and adapted sometimes, from the local authorities, for
specific initiatives. "I" letter indicates Italy, the final part
of nominative (ZTT, the suffix) is a personal code and it is assigned from
the competent Ministry (nation by nation), in a combination coming out
from the letters of the alphabet. Between the two groups of letters there
is a number dealing with the Italian region where the operator lives:
number 5 shows that I live in Tuscany. During
our operations with another operator we have to observe the rules of
identification provided for by the regulations, and remember that the
conversation is not private and many people can hear us. Every amateur
radio operator has just a registry of station, called " Station
Log": it's not only a compulsory document but it represents the
official recording of the activity of the radio station and must always be
brought up to date. All the contacts carried out with reference to the
date must be recorded with progressive number, to the exact time, the
nominative of the correspondent, the frequency, type of emission etc... The
concrete index of the activity of the amateur radio operator station is
the so-called "QSL"; this is the name universally attributed to the
postcard used to confirm the successful contact between two operators and
it represents a coveted object for collections: the creativity of the
operator is left free to choose the colours, the designs and/or the images
represented on the card.
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Freely read from "Radioamatore, come e perché", by Nerio Neri, I4NE. |
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