Beginnings of Amateur Radio
Amateur radio began
almost as soon some of the details of Marconi's successful
radio experiments became public. People with no special interest
in commercializing radio or pursuing it as a career began trying to
use radio communication just for fun. The first amateur radio, like
the first commercial radio, used a variant of the Morse telegraph
code (called International Code) to transmit messages by turning a radio
signal on and off in a rhythmic pattern which spelled out letters,
numbers, and a few punctuation marks. In the beginning of amateur radio most
amateurs were much more interested in the fact of the communication
than in the content. They exchanged information only about their
location, name and maybe the weather. They wanted to know how far away
the other station was. Others fairly soon tried to give some utility
to their hobby by transmitting messages for friends or anyone else who
would give a message. A third group, who became known as "ragchewers",
simply gossiped and chatted, making friends whom they might never see.
Others were experimenters, who tried new ideas or looked for new
frontiers.
Until the
late 1940's amateur transmitters were on fixed frequencies. There were
two methods of making a contact. One was through the call sign CQ,
which had originally been adopted by ship to shore and ship to ship radio as the
indication that the station was calling any station which wished to answer.
After calling CQ the operator tuned the receiver over as much of the
amateur band he/she was operating on as was convenient, hoping that
someone was responding by transmitting her/his callsign back. Conversely
the operator would listen for someone calling CQ, and hope that his answer
would be heard. The other means was by prearrangement, on schedule.
Until fairly recently the number
in the callsign of U.S. amateur stations indicated the area in which
the licensee resided. As a result, when I moved to Philadelphia from
Columbus my callsign was changed, initially to W3LXS and then because
of a special situation to W3UKI. When I planned to return to the
Columbus area and was concerned about the new callsign I might be
given, I took another special opportunity to change to W3EL, and when
I came back to Ohio I received K8EF, which I now hold.
Amateurs played a
very important part in the development of VHF and UHF radio, using
wavelengths even shorter than the "short waves". Transmission on these
wavelengths seemed, in the 1930's, to be limited to very short ranges,
so they were of little interest to commercial radio at that time. A
few amateurs (who quite proudly accept the slang designation "ham", a
word of much disputed origin), just interested in experimentation,
found that these wavelengths had a much more complicated pattern of
propagation than was initially assumed. When commercial development of
FM and television broadcasting, local (particularly emergency, police
and fire for instance) communication and "microwave" relaying of
telephone and television signals began, the information developed by
amateurs about the properties of these wavelengths became very
important.
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Amateur Radio
and Me
K8EF
Amateur Radio
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e-mail:gfoley@columbus.rr.com
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