America runs on radiation. 97% of Americans own a cellphone. Like many digital devices, cellphones need radiofrequency radiation in order to operate.
Many people know about radiation due to its links to cancer. But radiation and radio waves have many substantial uses.
What are the different uses of radio waves? What frequencies do the radio waves operate at? What other devices are reliant on waves?
Answer these questions and you can reap the rewards of radiation in no time. Here is your quick guide.
Long waves can operate at almost indetectable frequencies. As you might imagine, their main benefit is their length. They can send signals across continents and oceans when sent at the right times.
Medium waves are less common within the technology industry. Most radio stations that say that they use medium waves operate between 300 kilohertz (kHz) and three MHz. But there is no set range for them.
Rural radio towers that need to communicate across long distances use medium waves. Yet they use the waves at night because daylight can cause them to disperse.
Short waves are common in many types of technology. They operate at low frequencies up to 30 megahertz (MHz).
You can find short waves in a plethora of digital devices. Many stores have Radio Frequency Identification (RFID) systems that rely on short waves as well. When an employee taps an ID card on a sensor, the sensor is connecting to the card using radio waves.
Very High Frequency
Very high frequency (VHF) waves operate between 30 and 300 MHz. This range of waves is useful when someone needs to communicate within a few seconds. They can send a lot of signals and get a response back promptly.
Military radios rely on VHF waves. But analog radios and non-digital broadcasts can use the waves as well, especially to communicate weather broadcasts.
Ultra High Frequency
Ultra high frequency (UHF) waves have frequencies between 300 MHz and three gigahertz (GHz). Most digital television stations rely on UHF waves in order to transmit their broadcasts. UHF ranges provide higher-quality images because they do not reflect off the atmosphere.
Some channels have a specific UHF that they operate at. This lets them transmit signals between stations without interference from other television channels. A channel can hire a radio frequency company to determine what frequency it should use.
Some types of microwave radiation are UHF waves. A low-intensity microwave may rely on these waves in order to heat up food. They can damage cells, yet microwaves contain protective materials that deflect waves away from people.
The Essentials of Radiofrequency Radiation
You use radiofrequency radiation without even knowing it. If you receive a signal from another continent, you may be relying on long waves. Medium waves help with cross-country communication, especially at night.
Short waves are in identification cards and security systems in addition to radios. The military needs VHF as do many weather stations.
When you watch television, you are using UHF waves. It is true that microwaves use them, and these waves can pose health problems. But the benefits outweigh the risks.
Radiation operates at many other frequencies. Read more guides to radiation by following our coverage.