What is a shortwave band?
The short -wave zone is a frequency band in the radio spectrum. Many people are not easily familiar with this broadcast band, because in most households they usually do not listen or use communication. Progress in technology in mobile phones and the Internet also reduced the use of shortwave broadcasts. However, the short -wave zone transmits a lot of information and is a reliable means of communication, especially during dangerous situations and for areas that have limited technology. This band is designed to travel long distances and transport news and entertainment, as well as government information. The radio band, most people I know, is a group that broadcasts on FM and television stations. These belts are designed to travel short distances, usually 50 to 75 miles (80 to 120.7 km) and can be picked up with regular radios and TVs.
Thetwave Radio Band is able to bounce ionosphere during all hours of the day. The lower end of the short -wave zone transmits at nightThe stronger signal and the upper end of the band works better during the day. Short -wave broadcasts often adjust their frequencies depending on the time of the day they broadcast.
The way in which the shortwave radio group interacts with the ionosphere allows broadcasting to travel around the world. Shortwave belts are also picked up and passed to different bases on different continents. These relay stations transmit broadcasts from point to point and are able to strengthen the shortwave wave signals.
Frequency of the shortwave zone cannot be picked up by the common FM/AM radio. Specialized shortwave radios are needed to pick up the shortwave transmissions. These radios can pick up amateur or ham radio signals; ZWORLD BAND RADIO signals, including the voice of America and BBC; And signals from boats and aircraft. Weather broadcasting is also very popular through a short wave; These broadcasts inform POslucháče on local and regional forecasts and extraordinary weather events.
In the shortwave zone are frequency ranges similar to those on the radio FM. As a radio station that broadcasts on a certain station, each of these shortwave broadcasts operates on various radio frequencies. The short -wave radio group is regulated for the use of government officials and each frequency of broadcasting is determined by the country's government.
Anyone who has a shortwave radio can monitor shortwave. For this reason, it is important that personal data are not transmitted across their waves. Only people who were licensed can legally transmit information using the shortwave radio zone.