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AF04701186190
AF04701186190

... receiver. It translates RF frequency to IF frequency by using LO(local oscillator ). Conversion process in time domain is performed by multiplying the RF signal by a signal named Local (LO).Nonlinearity effect of the mixer is necessary for this frequency translation in order to produce sum and diffe ...
FO2611711176
FO2611711176

... radio navigation system. this generator can be widely applied to debugging use on people/military plane radio navigation. The reference paper implements only AM modulation type for testing the navigational receivers. 1. But today’s communication systems use variety of latest digital modulation techn ...
Low Field NMR Spectrometer
Low Field NMR Spectrometer

... should satisfy two conditions. It should be well tuned and well matched, by well tuned we mean that it resonates at a particular frequency, in our case that frequency is the Larmour frequency. By well matched we mean impedance matching, the impedance of the antenna tuner should equal the impedance o ...
How Electrical Interference can cripple your Control System
How Electrical Interference can cripple your Control System

... pick-up of magnetically induced voltages (reduction of mutual inductance M). When you have taken all the above measures you could still be left with some unwanted voltage, effectively in series with the signal. This is called Series Mode interference and is usually ac. Occasionally it could come in ...
RF401-to
RF401-to

... At = Transmission line loss between transmitter and transmitting antenna Ar = Transmission line loss between receiver and receiving antenna FSL, At and Ar are the one which constitutes the attenuation of microwave signal. FSL (dB) = 32.4+20log(f)+20log(d) MHz ...
Next-Generation Interconnect Research at Fujitsu Laboratories
Next-Generation Interconnect Research at Fujitsu Laboratories

... blurs into pure cacophony. To solve this communication problem, Joe could break up his utterance, allowing each echo to die out before calling out the next word. But then it would take him a long time to complete his utterance! We might say that his bandwidth, the rate at which information flows, mu ...
FX-700 - Mouser Electronics
FX-700 - Mouser Electronics

... Note 1: Other frequencies are available upon request, please contact VI for details SS is code for non-standard frequencies, list the frequency after the part number. Note 2: Not all combinations are possible. Note 3: The output frequency must be equal to or greater than the input frequency. Note 4: ...
Principles of Electronic Communication Systems
Principles of Electronic Communication Systems

... frequency is known as the modulation index (mf).  In most communication systems using FM, maximum limits are put on both the frequency deviation and the modulating frequency.  In standard FM broadcasting, the maximum permitted frequency deviation is 75 kHz and the maximum permitted modulating freq ...
SD5000 / SD5400 - Micross Components
SD5000 / SD5400 - Micross Components

model 320sl - Southwest Microwave, Inc.
model 320sl - Southwest Microwave, Inc.

pdf slides
pdf slides

... ) rural exchange trunks--link towns and villages ) local loops--direct from central exchange to a subscriber (business or home) ) local area networks--100Mbps ring networks ...
03 Amplitude Modulation
03 Amplitude Modulation

... be determined by the combining the modulation index of each component. ...
TD310 used in a high side driving
TD310 used in a high side driving

OPERATION MANUAL LDM-1000 LVDT/RVDT Signal Conditioning Module
OPERATION MANUAL LDM-1000 LVDT/RVDT Signal Conditioning Module

... The Oscillator ‘Sync’ mode setting will depend on the number of LDM-1000’s and transducers in your system, and their physical locations. For a single LVDT or RVDT system you will be running the LDM-1000 in the Master (INT) mode. For systems with multiple LDM-1000’s, especially when they are co-locat ...
PIC-Gen Frequency Generator - Everyday Practical Electronics
PIC-Gen Frequency Generator - Everyday Practical Electronics

Subject: R/S HTX-100 Modifications
Subject: R/S HTX-100 Modifications

... 28 and 29 on IC401.The synthesizer will now tune from 26.00 Mhz to 30 Mhz. ------------------------------------------------------------------------------*Simple RF Wattage Enhancement to 35 Watts With the radio in the same position as before, locate VR5 in the top left hand corner. This is the RF hi ...
IOSR Journal of Computer Engineering (IOSR-JCE)
IOSR Journal of Computer Engineering (IOSR-JCE)

Cordless Telepohones
Cordless Telepohones

... The consequence of a star system is that the peripheral elements, insofar as technically feasible, are made as simple as possible and any necessary complexity is concentrated in the central element. The examples of the transmitter-centered star are the familiar amplitude modulated (AM), frequency mo ...
A 0.7V Time-based Inductor for Fully Integrated Low Bandwidth
A 0.7V Time-based Inductor for Fully Integrated Low Bandwidth

... the lowest frequency that the inductor can maintain saturationfree performance. This allows the inductor to “degrade gracefully”, as the impedance goes from inductive to resistive as the frequency lowers. We also do not want true phase tracking, as that would prevent any integration from the input t ...
Swing Dynamics and Frequency Regulation
Swing Dynamics and Frequency Regulation

... Instead of having to draw all of the slots and windings each time, we represent each distributed coil by a concentrated coil located in the center of the distribution. This is shown in Figure 5.4. The circle with a dot denotes that current is referenced out of the page while a circle with a cross in ...
theremin - Courses
theremin - Courses

Equivalent Circuit Description 8.2.2 Small Signal Response of p-n Junctions
Equivalent Circuit Description 8.2.2 Small Signal Response of p-n Junctions

Experiment 1: The Cascode Amplifier
Experiment 1: The Cascode Amplifier

... frequency will be 12 dB per octave, or 40 dB per decade. Thus, the two pole filter is a better approximation to the ideal filter. In this case, the corner frequency is given by the ...
What`s the isolator unit used for? Isolator is installed between a
What`s the isolator unit used for? Isolator is installed between a

... and to supply the power to it. Another purpose of this is the isolation. Isolation between primary coil and secondary coil inside transformer minimizes mutual influences. As for AC signal, it is common to isolate between input signal and output signal through input and output transformer. These tran ...
Improved Implementation of Sprott’s Chaotic Oscillators Based on Current-Feedback Op Amps
Improved Implementation of Sprott’s Chaotic Oscillators Based on Current-Feedback Op Amps

... in the study of chaotic oscillators [1-3]. Chaotic oscillators are useful tools not only for investigation of nonlinear phenomena, bifurcation and chaos, but also for a variety of applications such as synchronizations, control [4] and chaos-based communications systems [5]. Chua’s circuit [3] is one ...
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Heterodyne



Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.
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