Local Oscillation Frequency of AM Receiver Calculator

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Amplitude Modulation Characteristics

Analog Noise and Power Analysis

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Frequency Modulation

Fundamentals of Analog Communications

Sideband and Frequency Modulation

✖Radio Frequency is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system.ⓘ Radio Frequency [f_rf]			+10% -10%
✖Intermediate Frequency is a frequency to which a carrier wave is shifted as an intermediate step in transmission or reception.ⓘ Intermediate Frequency [f_im]			+10% -10%

✖Local Oscillation Frequency is that frequency which is used by electronic oscillator along with a mixer to change the frequency of a signal.ⓘ Local Oscillation Frequency of AM Receiver [f_lo]

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Formula

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Local Oscillation Frequency of AM Receiver

Formula

`"f"_{"lo"} = "f"_{"rf"}+"f"_{"im"}`

Example

`"125Hz"="55Hz"+"70Hz"`

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Local Oscillation Frequency of AM Receiver Solution

STEP 0: Pre-Calculation Summary

Formula Used

Local Oscillation Frequency = Radio Frequency+Intermediate Frequency
f_lo = f_rf+f_im
This formula uses 3 Variables

Variables Used

Local Oscillation Frequency - (Measured in Hertz) - Local Oscillation Frequency is that frequency which is used by electronic oscillator along with a mixer to change the frequency of a signal.
Radio Frequency - (Measured in Hertz) - Radio Frequency is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system.
Intermediate Frequency - (Measured in Hertz) - Intermediate Frequency is a frequency to which a carrier wave is shifted as an intermediate step in transmission or reception.

STEP 1: Convert Input(s) to Base Unit

Radio Frequency: 55 Hertz --> 55 Hertz No Conversion Required
Intermediate Frequency: 70 Hertz --> 70 Hertz No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

f_lo = f_rf+f_im --> 55+70

Evaluating ... ...

f_lo = 125

STEP 3: Convert Result to Output's Unit

125 Hertz --> No Conversion Required

FINAL ANSWER

125 Hertz <-- Local Oscillation Frequency

(Calculation completed in 00.004 seconds)

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Created by Suma Madhuri

VIT University (VIT), Chennai

Suma Madhuri has created this Calculator and 50+ more calculators!

Verified by Ritwik Tripathi

Vellore Institute of Technology (VIT Vellore), Vellore

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< 18 Amplitude Modulation Characteristics Calculators

Pre Detection Signal to Noise Ratio of AM

Go Pre Detection SNR of SSB = (Amplitude of Carrier Signal^2*(1+Amplitude Sensitivity of Modulator^2*Total Power))/(2*Noise Density*Transmission Bandwidth)

Post Detection Signal to Noise Ratio of AM

Go Post Detection SNR of AM = (Amplitude of Carrier Signal^2*Amplitude Sensitivity of Modulator^2*Total Power)/(2*Noise Density*Transmission Bandwidth)

Coupling Factor of AM Receiver

Go Coupling Factor = (Image Frequency/Radio Frequency)-(Radio Frequency/Image Frequency)

Phase Deviation of AM Receiver

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

Quality Factor of AM Receiver

Go Quality Factor = 1/(2*pi)*sqrt(Inductance/Capacitance)

Total Current of AM Wave

Go Total Current of AM Wave = Carrier Current*sqrt(1+((Modulation Index^2)/2))

Total Power of AM wave

Go Total Power = Carrier Power+Upper Sideband Power+Lower Sideband Power

Magnitude of Modulating Signal

Go Modulating Signal Magnitude = (Maximum Amplitude of AM Wave-Minimum Amplitude of AM Wave)/2

Maximum Amplitude of AM Wave

Go Maximum Amplitude of AM Wave = Amplitude of Carrier Signal*(1+Modulation Index^2)

Minimum Amplitude of AM Wave

Go Minimum Amplitude of AM Wave = Amplitude of Carrier Signal*(1-Modulation Index^2)

Amplitude of Each Sideband

Go Amplitude of each Sideband = (Modulation Index*Amplitude of Carrier Signal)/2

Image Frequency Bandwidth of AM Receiver

Go Image Frequency Bandwidth = Radio Frequency Bandwidth/Bandwidth Improvement

Radio Frequency Bandwidth of AM Receiver

Go Radio Frequency Bandwidth = Bandwidth Improvement*Image Frequency Bandwidth

Bandwidth Improvement of AM Receiver

Go Bandwidth Improvement = Radio Frequency Bandwidth/Image Frequency Bandwidth

Local Oscillation Frequency of AM Receiver

Go Local Oscillation Frequency = Radio Frequency+Intermediate Frequency

Average Total Power of AM Wave

Go Total Power = Carrier Power*(1+(Modulation Index^2)/2)

Amplitude Sensitivity of Modulator

Go Amplitude Sensitivity of Modulator = 1/Amplitude of Carrier Signal

Bandwidth of AM wave

Go Bandwidth of AM Wave = 2*Maximum Frequency

Local Oscillation Frequency of AM Receiver Formula

Local Oscillation Frequency = Radio Frequency+Intermediate Frequency
f_lo = f_rf+f_im

What is the purpose of the local oscillator in an AM receiver?

The purpose of the local oscillator in an AM receiver is to convert the incoming radio signal to a lower frequency that is easier to amplify and demodulate. This is done through a process called heterodyning, in which the local oscillator signal is mixed with the incoming signal to produce two new signals at the sum and difference of the two original frequencies.

How to Calculate Local Oscillation Frequency of AM Receiver?

Local Oscillation Frequency of AM Receiver calculator uses Local Oscillation Frequency = Radio Frequency+Intermediate Frequency to calculate the Local Oscillation Frequency, The Local Oscillation Frequency of AM Receiver formula is defined as the frequency of a signal that is generated by the receiver and mixed with the incoming radio signal to produce the intermediate frequency. Local Oscillation Frequency is denoted by f_lo symbol.

How to calculate Local Oscillation Frequency of AM Receiver using this online calculator? To use this online calculator for Local Oscillation Frequency of AM Receiver, enter Radio Frequency (f_rf) & Intermediate Frequency (f_im) and hit the calculate button. Here is how the Local Oscillation Frequency of AM Receiver calculation can be explained with given input values -> 120 = 55+70.

FAQ

What is Local Oscillation Frequency of AM Receiver?

The Local Oscillation Frequency of AM Receiver formula is defined as the frequency of a signal that is generated by the receiver and mixed with the incoming radio signal to produce the intermediate frequency and is represented as f_lo = f_rf+f_im or Local Oscillation Frequency = Radio Frequency+Intermediate Frequency. Radio Frequency is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system & Intermediate Frequency is a frequency to which a carrier wave is shifted as an intermediate step in transmission or reception.

How to calculate Local Oscillation Frequency of AM Receiver?

The Local Oscillation Frequency of AM Receiver formula is defined as the frequency of a signal that is generated by the receiver and mixed with the incoming radio signal to produce the intermediate frequency is calculated using Local Oscillation Frequency = Radio Frequency+Intermediate Frequency. To calculate Local Oscillation Frequency of AM Receiver, you need Radio Frequency (f_rf) & Intermediate Frequency (f_im). With our tool, you need to enter the respective value for Radio Frequency & Intermediate 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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