③
④
Effect of listening to shortwave programs at different times of the day
What language programs can be received by
shortwave radios?
Shortwave signal propagation is subject to the influence of many factors, such as sunspot
activity, atmosphere and earth-ionosphere change. The shortwave propagation effect varies with
band, sometime good in the daytime or at night. It is not good to listen to shortwave program
during daytime, especially from 10 am to 3 pm. It is mainly because that shortwave is greatly
affected by the change of ionosphere in such period, leading to short transmission distance. If
you want to listen to shortwave programs during the daytime, please refer to the table above.
The effect may be good in certain meter bands, but inferior to that at night.
If in China, in shortwave radio programs, the Mandarin,
English, French, German, Russian, Japanese, Hindi,
Spanish, Portuguese, and other languages may be
heard, as well as our Cantonese, Teochew dialect,
Shanghai dialect, Minnan dialect and other dialects.
China's Central People's Broadcasting Station also uses
Mongolian, Uygur, Tibetan, Kazakh, Korean and other
minority languages for short-wave radio broadcasting.
⑤
⑥
⑦
What
kind
of
radio
broadcasting can be received by
shortwave radio?
What
content
in
the
shortwave program?
Is there the need to use outdoor external antenna
to listen to shortwave radio broadcasting?
Most countries in the world have
shortwave radio broadcasting. However,
the shortwave radio station in a certain
small country can only cover the territory
of such country, owning to small
transmitting power, which cannot be
received well by our country. Even a
station with strong power, the receiving
effect depends on geographical location
within or beyond coverage range. For
example: some frequencies of China's
Central People's Broadcasting Station
shortwave radio broadcasting can be
received well in our northeastern region,
but badly in China's southwest region.
Thanks to the national cultural and
political
background
of
different
countries, the shortwave radio content
varies with country. In general, the
international shortwave radio program
contains world news, national news and
local news, news reviews, national
culture, music appreciation, language
teaching, etc. Some countries even set
up police information announcement,
weather forecast, marine information
forecast and other program. It must be
stressed that the official radio station of
each national government represents its
political
positions
and
economic
interests. Therefore, when listening to
international broadcasting, you should
have ability to make judgment.
This depends on your listening environment. The reinforced
structures will shield the broadcast signal. In some remote areas,
mountains and mining areas, the shortwave signal will be slightly
weak, so it is necessary to install the outdoor antenna.
⑧
Is the shortwave signal clear?
The effect of listening to shortwave broadcasting depends on the
strength of radio transmitting power, the performance of radio and
the receiving location and other environmental factors. With the
improvement of radio technology, the listening effect will get
better and better.
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