Radio Broadcasting’s Vital Role in Emergencies
- November 16, 2017
- Posted by: marlenedubois
- Category: Nursing Assistant Classes
Radio broadcasting carries a long history; one of which goes beyond Tesla, Marconi along with Armstrong, along with the idea includes advances in communication along with technology, as explained by Radio magazine. Some of the important dates by radio’s past are covered on the AmericanRadioHistory.com website. There, one can read about the earliest forms of radiotelegraphy systems.
In fact, early 1920s marks an important date in time of radio telegraph communication: In of which time, the basis of public radio network broadcasting along with even early TV programming were provided: Scientists were experimenting in 1925 with TVs, to include video content disseminated via radio transmissions on designated channels to a dispersed audience.
Early audio transmission set in motion AM broadcasting on a radio station. To overcome the interference problems of AM radio, stations began to use FM radio from the 1930s as its band provided a more clear-cut audio sound through the air as radio waves by a transmitter to an antenna. the idea was not until the 2000s of which Americans were introduced to digital radio along with direct broadcasting by satellite (DBS).
By the 1930s, radio broadcasting along with television broadcasting (telecasting) was an integral part of the American way of life.
from the previous decade, the 1920s, early amateur radio transmitted information from the form of Morse code; a series of on-off tones provided communication on telegraph lines, undersea cables along with radio circuits for transmitting emergency signals. Radio telegraphy using Morse code proved vital during World War II. Also Mayday calls were made by radio to signal a life-threatening emergency. A fire, an explosion or sinking vessel or aircraft, where announced having a signal transmitted three times in a row (“Mayday Mayday Mayday”); the distress call was broadcasted to reach out for assistance in times of an emergency.
A device dubbed the ham radio was used for amateur radio broadcasting early on; a range of frequencies (set aside for commercial, police along with government use only) allowed one- along with two-way communication by the 1940s. The ham radio happened to be something of an emergency broadcast system to get the word out to the wider community from the event of an emergency, such as a natural disaster. Apparently the SOS (amateur distress call) sent by the Titanic had used a radio ham in April 1912, noted ARRL (American Radio Relay League), the national association for Amateur Radio, on its webpage on “Ham Radio History.”
from the 1950s, CONELRAD (Control of Electromagnetic Radiation) was a method of emergency broadcasting to the public; the CONELRAD system (used during the Cold War) was replaced by the Emergency Broadcast System (EBS) from the 60s, which was later replaced with the Emergency Alert System (EAS) from the 90s. Regardless of the name change, each one served as a national warning system for the American public from the event of war or grave national crisis, in addition to local weather emergencies. Such broadcasting systems had a vital role in emergencies to quickly provide the necessary alert along with message to a community when a disastrous situation arose. In essence, the idea announced an emergency broadcast response which could potentially save human lives along with deliver instructions if an evacuation was required.
To This kind of day, radio broadcasting has been the most utilized media to distribute to the public civil emergency messages.
In history, the idea has been widely accepted as the mass communication medium for information, especially during times of severe weather along with even threats related to wars. In fact, radio communication can be sustained even when different means of communication fail along with there is usually no power. In addition, the idea is usually a media everyone has access to. Transmitting real-time warnings to citizens from the event of an emergency proves of which communications devices like radios can still be of great importance, today, in emergencies even from the era of computers along with mobile devices.