Lower Sideband Power Calculator

✖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.ⓘ Amplitude of Carrier Signal [A_c]			+10% -10%
✖Modulation Index states the level of modulation that a carrier wave undergoes.ⓘ Modulation Index [μ]			+10% -10%
✖Resistance refers to the opposition to the flow of an alternating current (AC) in a circuit.ⓘ Resistance [R]			+10% -10%

✖Lower sideband power is the power which is lower than the carrier power during the modulation process.ⓘ Lower Sideband Power [P_lsb]

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Lower Sideband Power Solution

STEP 0: Pre-Calculation Summary

Formula Used

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

P_lsb = A_c^2*μ^2/(8*R) --> 17^2*0.36^2/(8*125.25)

Evaluating ... ...

P_lsb = 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 00.020 seconds)

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Created by Akshada Kulkarni

National Institute of Information Technology (NIIT), Neemrana

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< Sideband and Frequency Modulation Calculators

Pre Detection Signal to Noise Ratio

LaTeX 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)

Transmitted Power of DSB-SC

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

Bandwidth of VSB

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

Bandwidth in DSB-SC

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

Lower Sideband Power Formula

LaTeX Go

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