This tool converts Frequency deviation to Bandwidth.
Calculator
Enter the frequency deviation to find the bandwidth of the transmission
Formula
Bandwidth = 2 × Frequency Deviation
Fmax = Fcenter + Bandwidth/2
Fmin = Fcenter – Bandwidth/2
Example Calculation
For a carrier frequency of 2 GHz for a RF (Radio Frequency) signal, and a modulation technique that requires a frequency deviation of ±100 MHz.
The total bandwidth required for this signal would be:
Bandwidth = 2 × 100 MHz = 200 MHz
This calculation assumes that the signal occupies frequencies from 100 MHz below to 100 MHz above the carrier frequency.
At a center frequency of 2 GHz, the minimum and maximum frequency are: 1.9 GHz and 2.1 GHz.
What is Bandwidth?
Bandwidth, in the context of signal processing and communications, refers to the range of frequencies within a given band that are used to transmit a signal. It is typically measured in hertz (Hz) and determines the data rate that can be transmitted over a given channel.
Relationship Between Frequency and Bandwidth
The terms ‘frequency’ and ‘bandwidth’ are often used interchangeably but denote different aspects of a signal:
- Frequency refers to the number of times a signal cycles per second, measured in hertz (Hz).
- Bandwidth is the width of the frequency band used to transmit information, also measured in Hz.
In practical terms, the ‘frequency’ often refers to the central frequency or carrier frequency of the band, while ‘bandwidth’ refers to the total frequency range that the signal occupies.
Frequency to Bandwidth Conversion
In many applications, you may start with a known carrier frequency and need to calculate the range of frequencies (bandwidth) that a system or signal will occupy. The conversion from a specific frequency to a bandwidth depends largely on the type of signal and the specific requirements of the system, such as modulation type or FCC (Federal Communications Commission) regulations.