Lower Sideband Power Solution

STEP 0: Pre-Calculation Summary
Formula Used
Lower Sideband Power = Amplitude of Carrier Signal^2*Modulation Index^2/(8*Resistance)
Plsb = Ac^2*μ^2/(8*R)
This formula uses 4 Variables
Variables Used
Lower Sideband Power - (Measured in Watt) - Lower sideband power is the power which is lower than the carrier power during the modulation process.
Amplitude of Carrier Signal - (Measured in Volt) - Amplitude of Carrier Signal is varied in accordance with the instantaneous amplitude of the modulating signal. The modulating signal is the signal that contains the information to be transmitted.
Modulation Index - Modulation Index states the level of modulation that a carrier wave undergoes.
Resistance - (Measured in Ohm) - Resistance refers to the opposition to the flow of an alternating current (AC) in a circuit.
STEP 1: Convert Input(s) to Base Unit
Amplitude of Carrier Signal: 17 Volt --> 17 Volt No Conversion Required
Modulation Index: 0.36 --> No Conversion Required
Resistance: 125.25 Ohm --> 125.25 Ohm No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Plsb = Ac^2*μ^2/(8*R) --> 17^2*0.36^2/(8*125.25)
Evaluating ... ...
Plsb = 0.0373796407185629
STEP 3: Convert Result to Output's Unit
0.0373796407185629 Watt --> No Conversion Required
FINAL ANSWER
0.0373796407185629 0.03738 Watt <-- Lower Sideband Power
(Calculation completed in 00.004 seconds)

Credits

Created by Akshada Kulkarni
National Institute of Information Technology (NIIT), Neemrana
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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 Power Formula

Lower Sideband Power = Amplitude of Carrier Signal^2*Modulation Index^2/(8*Resistance)
Plsb = Ac^2*μ^2/(8*R)

What is Lower sideband?

In radio communications, a sideband is a band of frequencies higher than or lower than the carrier frequency, that are the result of the modulation process. The sidebands carry the information transmitted by the radio signal. The sidebands comprise all the spectral components of the modulated signal except the carrier. The signal components below the carrier frequency constitute the lower sideband (LSB). All forms of modulation produce sidebands.

How to Calculate Lower Sideband Power?

Lower Sideband Power calculator uses Lower Sideband Power = Amplitude of Carrier Signal^2*Modulation Index^2/(8*Resistance) to calculate the Lower Sideband Power, Lower Sideband Power is the power required to transmit a signal in the lower sideband of a radio frequency (RF) carrier wave. Lower Sideband Power is denoted by Plsb symbol.

How to calculate Lower Sideband Power using this online calculator? To use this online calculator for Lower Sideband Power, enter Amplitude of Carrier Signal (Ac), Modulation Index (μ) & Resistance (R) and hit the calculate button. Here is how the Lower Sideband Power calculation can be explained with given input values -> 0.037454 = 17^2*0.36^2/(8*125.25).

FAQ

What is Lower Sideband Power?
Lower Sideband Power is the power required to transmit a signal in the lower sideband of a radio frequency (RF) carrier wave and is represented as Plsb = Ac^2*μ^2/(8*R) or Lower Sideband Power = Amplitude of Carrier Signal^2*Modulation Index^2/(8*Resistance). Amplitude of Carrier Signal is varied in accordance with the instantaneous amplitude of the modulating signal. The modulating signal is the signal that contains the information to be transmitted, Modulation Index states the level of modulation that a carrier wave undergoes & Resistance refers to the opposition to the flow of an alternating current (AC) in a circuit.
How to calculate Lower Sideband Power?
Lower Sideband Power is the power required to transmit a signal in the lower sideband of a radio frequency (RF) carrier wave is calculated using Lower Sideband Power = Amplitude of Carrier Signal^2*Modulation Index^2/(8*Resistance). To calculate Lower Sideband Power, you need Amplitude of Carrier Signal (Ac), Modulation Index (μ) & Resistance (R). With our tool, you need to enter the respective value for Amplitude of Carrier Signal, Modulation Index & Resistance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Lower Sideband Power?
In this formula, Lower Sideband Power uses Amplitude of Carrier Signal, Modulation Index & Resistance. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Lower Sideband Power = Carrier Power*(Modulation Index^2)/4
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