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The Amateur Radio 10 Meter Band
was created in 1928 after the International
Radiotelegraph Conference was held in Washington,
DC, USA.
Ham Radio lost the 300 kHz segment from 29.700 MHz
to 30.000 MHz in 1947.
Launched in 1970 on a NASA flight OSCAR-5 was the
first OSCAR to transmit on the Amateur 10 meter band
and was built at University of Melbourne, Australia.
In the late 1970s with the impending American FCC
ban of the sale of older 23 channel Citizens' band
radio equipment that did not meet the more stringent
type acceptance of the newer 40 channel units meant
that a surplus of 23 channel CB gear was on the
market. This was a windfall for Amateur Radio
enthusiasts allowing them access to fairly
inexpensive radios which could easily be modified
for use in the 10 meter band.
American Novice and Technician class licensees were
granted CW and SSB segments on the 10 Meter Band in
1987
Being a very wide band in HF terms, many different
transmission modes can be found on 10 meters. Morse
Code and other Narrowband modes found toward the
bottom portion of the band, Single-sideband
modulation (SSB) from 28.300 MHz and above, Wideband
modes such as Amplitude Modulation (AM) and
Frequency Modulation (FM) are found near the top
portion of the band.
Due to its unique spot in the spectrum, 10 meters
can be fascinating, if not occasionally challenging,
to work. At peak times of the solar cycle when
sunspots appear on the Sun's surface, 10 meters can
be alive with extremely long-distance signals,
refracting from the F2 layer in the ionosphere.
Primarily a daytime band, 10 meters will come alive
during high solar periods not long after sunrise,
and often remain "open" until after sunset.

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