Keyword Analysis & Research: radio frequency spectrum

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Frequently Asked Questions

What is the frequency range of a radio?

Radio frequency (RF) refers to the rate of oscillation of electromagnetic radio waves in the range of 3 kHz to 300 GHz, as well as the alternating currents carrying the radio signals. This is the frequency band that is used for communications transmission and broadcasting.

What are the different types of radio frequencies?

In the United States, the Federal Communication Commission (FCC) regulates the radio frequency bands. According to US frequency groups there are four different categories: low-band VHF (49-108 MHz), high-band VHF (169-216 MHz), low-band UHF (450-806 MHz), and high-band UHF (900-952 MHz).

What frequency range is used for FM radio transmission?

The frequency band for FM radio is about 88 to 108 MHz. The information signal is music and voice which falls in the audio spectrum. The full audio spectrum ranges form 20 to 20,000 Hz, but FM radio limits the upper modulating frequency to 15 kHz (cf. AM radio which limits the upper frequency to 5 kHz).

What is the use of EARFCN in LTE?

EARFCN in the LTE system is the short form of E-UTRA Absolute Radio Frequency Channel Number . Similar to GSM ARFCN and UMTS UARFCN, EARFCN is used to simply the RF planning and maintenance process in the LTE technology based networks. It is easy to remember one single integer number rather than multiple real numbers.


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