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What are different radio frequencies used for?

Author

Sophia Bowman

Updated on February 18, 2026

What are different radio frequencies used for?

Air traffic controllers and airline pilots using frequency between 118 MHz to 137 MHz to communicate. Another uses includes private and business radio station, medical equipment (magnetic resonance imaging), amateur radio and military applications.

Simply so, what are the different radio frequencies?

ITU

Band nameAbbreviationFrequency and Wavelength
Low frequencyLF30–300 kHz 10–1 km
Medium frequencyMF300–3,000 kHz 1,000–100 m
High frequencyHF3–30 MHz 100–10 m
Very high frequencyVHF30–300 MHz 10–1 m

One may also ask, what radio frequency should I use? Two-Way Radio Frequencies Golden Rule

The higher the frequency, the better the in-building penetration. This means a lower frequency like 150MHz in the VHF radio band will travel farther, and a higher frequency like 450MHz in the UHF radio band will work better inside of buildings.

Simply so, what are the various frequency bands used for communication?

Frequency Bands and Applications

Frequency Band NameAcronymFrequency Range
Medium FrequencyMF300 to 3000 kHz
High FrequencyHF3 to 30 MHz
Very High FrequencyVHF30 to 300 MHz
Ultra High FrequencyUHF300 to 3000 MHz

Why do radio stations have different frequencies?

Radio waves have different frequencies, and by tuning a radio receiver to a specific frequency you can pick up a specific signal. Megahertz means "millions of cycles per second," so "91.5 megahertz" means that the transmitter at the radio station is oscillating at a frequency of 91,500,000 cycles per second.

What is 300 MHz used for?

They are used for television broadcasting, cell phones, satellite communication including GPS, personal radio services including Wi-Fi and Bluetooth, walkie-talkies, cordless phones, and numerous other applications. The IEEE defines the UHF radar band as frequencies between 300 MHz and 1 GHz.

What frequency is 5G?

5G Ultra Wideband, Verizon's millimeter wavelength (mmWave)-based 5G, operates at frequencies of about 28 GHz and 39GHz. This is considerably higher than 4G networks, which use about 700 MHz-2500 MHz frequency to transfer information.

How do you pick up frequencies?

In order to hack your radio, here's what you need to do: Turn the tuning knob on the outside of the radio. Observe the mechanism connected to the tuning knob on the inside of the radio, while continuing to turn the knob. This will lead to your wire and cylinder that controls what frequency the radio is scanning.

What is MHz spectrum?

The advantage of the 700 MHz spectrum is that the signals travel longer distances than the higher frequencies used by many other wireless systems. Networks using this spectrum require fewer cell towers to reach the same geographic area. In addition, like TV broadcasting, signals in this spectrum penetrate walls easily.

What is the difference between spectrum and band?

Band spectrum is produced by molecules. They are the groups of lines which are closely spaced to one another. In appearance, they are in the form of band, hence the name 'BAND' spectrum.
Line SpectrumBand Spectrum
Also known asAtomic spectra.Molecular spectra.

What is spectrum and band?

Portions of electromagnetic spectrum are grouped in “bands†depending on their wavelengths—the distance over which the wave's shape repeats. The full electromagnetic spectrum ranges from three Hz (extremely low frequency) to 300 EHz (gamma rays). Spectrum is the entire range of frequencies.

What frequencies are harmful to humans?

Scientific evidence suggests that cancer is not only linked to mobile phone radiation and that other factors also may be involved in its development. Most mobile operators use from radiofrequency waves in the range up 300 MHz to 3 GHz that can be harmful for human health (1).

When would you use the VHF FM radio?

Common uses for radio waves in the VHF band are Digital Audio Broadcasting (DAB) and FM radio broadcasting, television broadcasting, two-way land mobile radio systems (emergency, business, private use and military), long range data communication up to several tens of kilometers with radio modems, amateur radio, and

What is the difference between band and frequency?

A frequency band is a range of frequencies. They're usually referred to by the wavelength (e.g. 40 meters is the band from 7000 KHz to 7300 KHz). A frequency is the reference point for tuning your transceiver.

What frequency is UHF?

UHF, abbreviation of ultrahigh frequency, conventionally defined portion of the electromagnetic spectrum, encompassing radiations having a wavelength between 0.1 and 1 m and a frequency between 3,000 and 300 megahertz.

What is KU band used for?

The Ku band is mainly used for satellite communications, especially downlink, used by direct-transmission satellites for satellite television and specific applications such as the NASA's Tracking Data Relay Satellite used for both the space shuttle and for communications from the International Space Station (ISS).

What frequency do police use?

Public Safety Spectrum
FrequencyMHz Available for Public Safety
25-50 MHz (VHF Low Band)6.3 MHz
150-174 MHz (VHF High Band)3.6 MHz [non-contiguous]
220-222 (220 MHz band)0.1 MHz
450-470 (UHF Band)3.7 MHz [non-contiguous]

Are police radios UHF or VHF?

Police radios operate in a 700/800 MHz UHF band.

Is VHF the same as FM?

VHF- Very High Frequency

Very high frequency is commonly used for FM radio broadcast, two-way land mobile radio systems, long-range data communication, and marine communications, just to name a few. The highest low band VHF is 88-108 MHz and operates the commercial FM radiobroadcast band.

Does radio frequency tighten skin?

RF therapy may help tighten loose skin on your body by stimulating the production of collagen. A 2017 study found that 24 of the 25 people who underwent 5 to 8 sessions of RF therapy sessions saw an improvement in their body shape. Twenty-three people were happy with their results.

Can a cell phone pick up FM radio?

Samsung, LG, HTC, Motorola, and even Apple all include FM receivers in their smartphones. For the most part, Android manufacturers have been getting better about enabling FM radios in their devices, and though they don't include the software to receive the broadcasts, it's still possible to connect to a signal.

Are radio frequencies harmful?

It has been known for many years that exposure to very high levels of RF radiation can be harmful due to the ability of RF energy to heat biological tissue rapidly. Exposure to very high RF intensities can result in heating of biological tissue and an increase in body temperature.

Why are there only odd radio stations?

Because each channel is 0.2 MHz wide, the center frequencies of adjacent channels differ by 0.2 MHz. Because the lowest channel is centered on 87.9 MHz, the tenths digit (in MHz) of the center frequency of any FM station in the United States is always an odd number.

What is the best frequency for an FM station?

If you want everyone to hear your broadcast, or at least as many people as possible, use the 88–108 MHz band, that's where all the commercially made, personal radio receivers work and all the commercial broadcast radios work.

Will FM radio be phased out?

Big radio switch-off is DELAYED again: AM and FM stations will be available on old devices for another decade as switchover from analogue to digital is put off until 2032.

Why is FM signal better than AM?

"FM, which stands for Frequency Modulation, has better sound quality due to higher bandwidth. Also, the way the audio is encoded for FM makes it less sensitive to interference from electrical activity from storms or electrical devices than AM.

Do radios use electromagnetic waves?

Radio waves are a type of electromagnetic radiation best-known for their use in communication technologies, such as television, mobile phones and radios. These devices receive radio waves and convert them to mechanical vibrations in the speaker to create sound waves.

What are the unlicensed frequency bands?

The US Federal Communications Commission (FCC) has three primary frequency bands designated for unlicensed operation. Unlicensed means the operator of the radios does not need to file directly with the FCC to use the radio. The three frequency bands used for this in the U.S. are the 900 MHz, 2.4 GHz and 5.8 GHz.

Which is better AM or FM?

FM has better sound quality due to higher bandwidth. AM radio ranges from 535 to 1705 KHz (OR) Up to 1200 bits per second. FM radio ranges in a higher spectrum from 88 to 108 MHz. In AM radio broadcasting, the modulating signal has bandwidth of 15kHz, and hence the bandwidth of an amplitude-modulated signal is 30kHz.

Is UHF FM or AM?

Is UHF AM or FM? UHF = Ultra High Frequency and has NOTHING to do with whether the signal is AM, FM or something else. In other words, UHF refers to the "band" that the frequency is in.

What do AM and FM stand for?

AM (Amplitude Modulation) and FM (Frequency Modulation) are types of modulation (coding). The electrical signal from program material, usually coming from a studio, is mixed with a carrier wave of a specific frequency, then broadcast.

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