Image Frequency Solution

STEP 0: Pre-Calculation Summary
Formula Used
Image Frequency = Received Signal Frequency+(2*Intermediate Frequency)
fimg = FRF+(2*fim)
This formula uses 3 Variables
Variables Used
Image Frequency - (Measured in Hertz) - Image Frequency is defined as the sum of received signal and twice the intermediate frequency.
Received Signal Frequency - (Measured in Hertz) - Received Signal Frequency is that frequency which is obtained at the receiver end of a Radio Channel.
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
Received Signal 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
fimg = FRF+(2*fim) --> 55+(2*70)
Evaluating ... ...
fimg = 195
STEP 3: Convert Result to Output's Unit
195 Hertz --> No Conversion Required
FINAL ANSWER
195 Hertz <-- Image Frequency
(Calculation completed in 00.004 seconds)

Credits

Created by Rachita C
BMS College Of Engineering (BMSCE), Banglore
Rachita C has created this Calculator and 25+ more calculators!
Verified by Vidyashree V
BMS College of Engineering (BMSCE), Bangalore
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24 Fundamentals of Analog Communications Calculators

Modulation Index with respect to Maximum and Minimum Amplitude
Go Modulation Index = (Maximum Amplitude of AM Wave-Minimum Amplitude of AM Wave)/(Maximum Amplitude of AM Wave+Minimum Amplitude of AM Wave)
Image Rejection Ratio
Go Image Rejection Ratio = (Image Frequency/Received Signal Frequency)-(Received Signal Frequency/Image Frequency)
Phase Constant of Distortion Less Line
Go Phase Constant of Distortion Less Line = Angular Velocity*sqrt(Inductance*Capacitance)
Quality Factor of Tuned Circuit
Go Quality Factor of Tuned Circuit = (2*pi*Resonant Frequency*Inductance)/Resistance
Modulation Index with respect to Power
Go Modulation Index = sqrt(2*((Average Total Power of AM Wave/Average Carrier Power of AM Wave)-1))
Cyclic Frequency of Superheterodyne Receiver
Go Cyclic Frequency = 1/(2*pi*sqrt(Inductance*Capacitance))
Rejection Ratio
Go Rejection Ratio = sqrt(1+(Quality Factor of Tuned Circuit^2*Image Rejection Ratio^2))
Image Frequency Rejection Ratio of Superheterodyne Receiver
Go Image Frequency Rejection Ratio = sqrt(1+(Quality Factor)^2*(Coupling Factor)^2)
Phase Velocity of Distortion Less Line
Go Phase Velocity of Distortion Less Line = 1/sqrt(Inductance*Capacitance)
Amplitude of Carrier Signal
Go Amplitude of Carrier Signal = (Maximum Amplitude of AM Wave+Minimum Amplitude of AM Wave)/2
Modulation Index with respect to Amplitude Sensitivity
Go Modulation Index = Amplitude Sensitivity of Modulator*Amplitude of Modulating Signal
Maximum Amplitude
Go Maximum Amplitude of AM Wave = Amplitude of Carrier Signal*(1+Modulation Index^2)
Minimum Amplitude
Go Minimum Amplitude of AM Wave = Amplitude of Carrier Signal*(1-Modulation Index^2)
Intermediate Frequency
Go Intermediate Frequency = (Local Oscillation Frequency-Received Signal Frequency)
Transmission Efficiency with respect to Modulation Index
Go Transmission Efficiency of AM Wave = Modulation Index^2/(2+Modulation Index^2)
Modulation Index
Go Modulation Index = Amplitude of Modulating Signal/Amplitude of Carrier Signal
Bandwidth of Tuned Circuit
Go Tuned Circuit Bandwidth = Resonant Frequency/Quality Factor of Tuned Circuit
Deviation Ratio
Go Deviation Ratio = Maximum Frequency Deviation/Maximum Modulating Frequency
Image Frequency
Go Image Frequency = Received Signal Frequency+(2*Intermediate Frequency)
Carrier Frequency
Go Carrier Frequency = Angular Frequency of Modulating Signal/(2*pi)
Carrier Power
Go Carrier Power = (Amplitude of Carrier Signal^2)/(2*Resistance)
Crest Factor
Go Crest Factor = Peak Value of Signal /RMS Value of Signal
Figure of Merit of Superheterodyne Receiver
Go Figure of Merit = 1/Noise Figure
Noise Figure of Superheterodyne Receiver
Go Noise Figure = 1/Figure of Merit

Image Frequency Formula

Image Frequency = Received Signal Frequency+(2*Intermediate Frequency)
fimg = FRF+(2*fim)

How Image Frequency is rejected?

The image rejection ratio, or image frequency rejection ratio, is the ratio of the intermediate-frequency (IF) signal level produced by the desired input frequency to that produced by the image frequency. The image rejection ratio is usually expressed in dB.

How to Calculate Image Frequency?

Image Frequency calculator uses Image Frequency = Received Signal Frequency+(2*Intermediate Frequency) to calculate the Image Frequency, Image Frequency is defined as the sum of received signal and twice the intermediate frequency. Image Frequency is denoted by fimg symbol.

How to calculate Image Frequency using this online calculator? To use this online calculator for Image Frequency, enter Received Signal Frequency (FRF) & Intermediate Frequency (fim) and hit the calculate button. Here is how the Image Frequency calculation can be explained with given input values -> 195 = 55+(2*70).

FAQ

What is Image Frequency?
Image Frequency is defined as the sum of received signal and twice the intermediate frequency and is represented as fimg = FRF+(2*fim) or Image Frequency = Received Signal Frequency+(2*Intermediate Frequency). Received Signal Frequency is that frequency which is obtained at the receiver end of a Radio Channel & Intermediate Frequency is a frequency to which a carrier wave is shifted as an intermediate step in transmission or reception.
How to calculate Image Frequency?
Image Frequency is defined as the sum of received signal and twice the intermediate frequency is calculated using Image Frequency = Received Signal Frequency+(2*Intermediate Frequency). To calculate Image Frequency, you need Received Signal Frequency (FRF) & Intermediate Frequency (fim). With our tool, you need to enter the respective value for Received Signal 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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