Lower Sideband Frequency Calculator

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Sideband and Frequency Modulation

Amplitude Modulation Characteristics

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Frequency Modulation

Fundamentals of Analog Communications

✖Carrier Frequency is defined as the frequency of the waveform that is modulated with an information-bearing signal.ⓘ Carrier Frequency [f_c]			+10% -10%
✖Message Maximum Frequency is defined as the highest frequency of a band-limited continuous-time signal.ⓘ Message Maximum Frequency [f_msg]			+10% -10%

✖Lower Sideband Frequency is the frequency band below the carrier frequency, within which fall the spectral components produced by modulation of a carrier wave.ⓘ Lower Sideband Frequency [f_LSB]

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Formula

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Lower Sideband Frequency

Formula

`"f"_{"LSB"} = ("f"_{"c"}-"f"_{"msg"})`

Example

`"35.133Hz"=("50.133Hz"-"15Hz")`

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Lower Sideband Frequency Solution

STEP 0: Pre-Calculation Summary

Formula Used

Lower Sideband Frequency = (Carrier Frequency-Message Maximum Frequency)
f_LSB = (f_c-f_msg)
This formula uses 3 Variables

Variables Used

Lower Sideband Frequency - (Measured in Hertz) - Lower Sideband Frequency is the frequency band below the carrier frequency, within which fall the spectral components produced by modulation of a carrier wave.
Carrier Frequency - (Measured in Hertz) - Carrier Frequency is defined as the frequency of the waveform that is modulated with an information-bearing signal.
Message Maximum Frequency - (Measured in Hertz) - Message Maximum Frequency is defined as the highest frequency of a band-limited continuous-time signal.

STEP 1: Convert Input(s) to Base Unit

Carrier Frequency: 50.133 Hertz --> 50.133 Hertz No Conversion Required
Message Maximum Frequency: 15 Hertz --> 15 Hertz No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

f_LSB = (f_c-f_msg) --> (50.133-15)

Evaluating ... ...

f_LSB = 35.133

STEP 3: Convert Result to Output's Unit

35.133 Hertz --> No Conversion Required

FINAL ANSWER

35.133 Hertz <-- Lower Sideband Frequency

(Calculation completed in 00.004 seconds)

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Created by Rachita C

BMS College Of Engineering (BMSCE), Banglore

Rachita C has created this Calculator and 25+ more calculators!

Verified by Saiju Shah

Jayawantrao Sawant College of Engineering (JSCOE), Pune

Saiju Shah has verified this Calculator and 25+ more calculators!

< 21 Sideband and Frequency Modulation Calculators

Pre Detection Signal to Noise Ratio

Go Pre Detection SNR of DSB-SC = (Amplitude of Carrier Signal DSB-SC^2*Total Power DSB-SC)/(2*Noise Density DSB-SC*Transmission Bandwidth DSBSC)

Modulating Signal Frequency of FM Receiver

Go Modulating Signal Frequency = Phase Deviation/(Proportionality Constant*Amplitude of Modulating Signal)

Modulating Signal Amplitude of FM Receiver

Go Amplitude of Modulating Signal = Phase Deviation/(Proportionality Constant*Modulating Signal Frequency)

Upper Sideband Power

Go Upper Sideband Power = (Amplitude of Carrier Signal^2*Modulation Index^2)/(8*Resistance)

Lower Sideband Power

Go Lower Sideband Power = Amplitude of Carrier Signal^2*Modulation Index^2/(8*Resistance)

Transmitted Power of DSB-SC

Go Transmitted Power of DSB-SC = Upper Sideband Power in DSB-SC+Lower Sideband Power DSB-SC

Bandwidth with respect to Modulation Index of FM

Go Bandwidth of FM Wave = (2*Frequency Deviation)*(1+(1/Modulation Index in FM))

Bandwidth of FM by Carson Rule with Beta

Go Bandwidth of FM Wave = 2*(1+Modulation Index in FM)*Modulating Frequency

Upper Sideband Frequency

Go Upper Sideband Frequency = (Carrier Frequency+Message Maximum Frequency)

Lower Sideband Frequency

Go Lower Sideband Frequency = (Carrier Frequency-Message Maximum Frequency)

Frequency Sensitivity

Go Frequency Sensitivity = Frequency Deviation/Peak Amplitude of Message

Frequency Deviation

Go Frequency Deviation = Frequency Sensitivity*Peak Amplitude of Message

Bandwidth of FM wave by Carson Rule

Go Bandwidth of FM Wave = 2*(Frequency Deviation+Modulating Frequency)

Frequency Deviation provided Modulation Index

Go Frequency Deviation = Modulation Index in FM*Modulating Frequency

Modulation Index of FM Wave

Go Modulation Index in FM = Frequency Deviation/Modulating Frequency

Bandwidth of VSB

Go Bandwidth of VSB = Maximum Frequency DSB-SC+Vestige Frequency

Upper Sideband Power with respect to Carrier Power

Go Upper Sideband Power = Carrier Power*(Modulation Index^2)/4

Lower Sideband Power with respect to Carrier Power

Go Lower Sideband Power = Carrier Power*(Modulation Index^2)/4

Modulating Frequency

Go Modulating Frequency = Angular Frequency/(2*pi)

Bandwidth in DSB-SC

Go Bandwidth in DSB-SC = 2*Maximum Frequency DSB-SC

Carrier Swing

Go Carrier Swing = 2*Frequency Deviation

Lower Sideband Frequency Formula

Lower Sideband Frequency = (Carrier Frequency-Message Maximum Frequency)
f_LSB = (f_c-f_msg)

Which control sideband is better upper or lower?

Choose lower or upper. The signal components above the carrier frequency constitute the upper sideband (USB) and those below the carrier frequency constitute the lower sideband (LSB). The Wireless Channel field specifies the frequency that the radio uses to transmit wireless frames.

How to Calculate Lower Sideband Frequency?

Lower Sideband Frequency calculator uses Lower Sideband Frequency = (Carrier Frequency-Message Maximum Frequency) to calculate the Lower Sideband Frequency, Lower Sideband Frequency is the band of frequency above the carrier frequency that lies in AM spectrum. Lower Sideband Frequency is denoted by f_LSB symbol.

How to calculate Lower Sideband Frequency using this online calculator? To use this online calculator for Lower Sideband Frequency, enter Carrier Frequency (f_c) & Message Maximum Frequency (f_msg) and hit the calculate button. Here is how the Lower Sideband Frequency calculation can be explained with given input values -> 35.133 = (50.133-15).

FAQ

What is Lower Sideband Frequency?

Lower Sideband Frequency is the band of frequency above the carrier frequency that lies in AM spectrum and is represented as f_LSB = (f_c-f_msg) or Lower Sideband Frequency = (Carrier Frequency-Message Maximum Frequency). Carrier Frequency is defined as the frequency of the waveform that is modulated with an information-bearing signal & Message Maximum Frequency is defined as the highest frequency of a band-limited continuous-time signal.

How to calculate Lower Sideband Frequency?

Lower Sideband Frequency is the band of frequency above the carrier frequency that lies in AM spectrum is calculated using Lower Sideband Frequency = (Carrier Frequency-Message Maximum Frequency). To calculate Lower Sideband Frequency, you need Carrier Frequency (f_c) & Message Maximum Frequency (f_msg). With our tool, you need to enter the respective value for Carrier Frequency & Message Maximum Frequency and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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