CHEM 515 Spectroscopy
... • Microwave sources are highly monochromatic (it comprises an extremely narrow range of wavelengths). This one reason that characterizes the very small bandwidth of absorption lines in the microwave region. ...
... • Microwave sources are highly monochromatic (it comprises an extremely narrow range of wavelengths). This one reason that characterizes the very small bandwidth of absorption lines in the microwave region. ...
Compare and contrast Tuned Radio Frequency
... meant to receive AM signals only and not to receive SSB signals-a separate unit is so required at the 'Detector' stage of the AM receiver, which is nothing but a stable 'Frequency Generator' (RF Oscillator), called the 'Beat Frequency Oscillator' (BFO). The BFO is used to introduce a 'Local Carrier ...
... meant to receive AM signals only and not to receive SSB signals-a separate unit is so required at the 'Detector' stage of the AM receiver, which is nothing but a stable 'Frequency Generator' (RF Oscillator), called the 'Beat Frequency Oscillator' (BFO). The BFO is used to introduce a 'Local Carrier ...
Amateur Radio Technician Class Element 2
... A mixer is the circuit used to process signals from the RF amplifier and local oscillator and send the result to the IF filter in a superheterodyne receiver. (G7C03) IF Amplifier Stages ...
... A mixer is the circuit used to process signals from the RF amplifier and local oscillator and send the result to the IF filter in a superheterodyne receiver. (G7C03) IF Amplifier Stages ...
Homework Problem Set 8 Solutions How is an LRC circuit similar to
... 3) An AC generator with a variable frequency is connected across a 45 cm piece of the coaxial cable described in Question 2. If the cable has minimal resistance, at what frequency will the cable resonate? If the resistance of the cable is 2Ω per meter, what is the new resonant frequency? ...
... 3) An AC generator with a variable frequency is connected across a 45 cm piece of the coaxial cable described in Question 2. If the cable has minimal resistance, at what frequency will the cable resonate? If the resistance of the cable is 2Ω per meter, what is the new resonant frequency? ...
PDF of the lab
... technology for accurate fast acquisition of input signal. • A sample and hold circuit is an analog device that samples (captures) the voltage of a continuously varying analog signal and holds (locks) its value at a constant level for a specified minimum period of time (hold time). They are typically ...
... technology for accurate fast acquisition of input signal. • A sample and hold circuit is an analog device that samples (captures) the voltage of a continuously varying analog signal and holds (locks) its value at a constant level for a specified minimum period of time (hold time). They are typically ...
Analog Electronics and Communication lab
... 1. State maximum power transfer theorem. Maximum power is delivered from a source to a load when the load resistance is equal to the source resistance, assuming that the load resistance is a variable. 2. Define Resonance Resonance is defined as a phenomenon in an AC circuit where applied voltage and ...
... 1. State maximum power transfer theorem. Maximum power is delivered from a source to a load when the load resistance is equal to the source resistance, assuming that the load resistance is a variable. 2. Define Resonance Resonance is defined as a phenomenon in an AC circuit where applied voltage and ...
A Custom built UHF to VHF downconverter
... Provision was made for tuneable capacitors at all the matching networks and was later replaced by the correct value capacitors and then tuned by pulling and pushing the air core inductors using tweezers. Firstly the regulators are soldered and tested to give out the correct voltages. Secondly the LO ...
... Provision was made for tuneable capacitors at all the matching networks and was later replaced by the correct value capacitors and then tuned by pulling and pushing the air core inductors using tweezers. Firstly the regulators are soldered and tested to give out the correct voltages. Secondly the LO ...
chapter 1 - UniMAP Portal
... received signal from the output of the channel, and convert it to a form suitable for the output transducer. E.g. mixing, demodulation, decoding Other functions performed: Amplification, filtering. Transducer converts the electrical signal at its input into a form desired by the system used ...
... received signal from the output of the channel, and convert it to a form suitable for the output transducer. E.g. mixing, demodulation, decoding Other functions performed: Amplification, filtering. Transducer converts the electrical signal at its input into a form desired by the system used ...
Digital Representation of Audio Information
... Plot the transfer characteristics for compressors and expanders. Process some signals with these and listen for type of distortion/enhancements they produce. ...
... Plot the transfer characteristics for compressors and expanders. Process some signals with these and listen for type of distortion/enhancements they produce. ...
UMZ-104-A16-G
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
Lesson-1-Workbook
... dBSPL: an acoustic pressure reference po9int, frequently used. Sound pressure is measured per unit area in a given location; measured in dynes per cm^2, or newtons per m^2. However, a 20 log equation is used. The human ear is a nonlinear device, that is, input and output amplitudes don’t necessarily ...
... dBSPL: an acoustic pressure reference po9int, frequently used. Sound pressure is measured per unit area in a given location; measured in dynes per cm^2, or newtons per m^2. However, a 20 log equation is used. The human ear is a nonlinear device, that is, input and output amplitudes don’t necessarily ...
meteor_forward_scatt..
... The signal flow is relatively straightforward. The un-amplified signal arrives from the antenna via a length of RG-6 coaxial cable, where it is filtered with a 1/4-wave stub filter, and presented to a RTL-SDR4 DVB-T “dongle” which provides a 2Msps baseband sample stream to the meteor_detector appli ...
... The signal flow is relatively straightforward. The un-amplified signal arrives from the antenna via a length of RG-6 coaxial cable, where it is filtered with a 1/4-wave stub filter, and presented to a RTL-SDR4 DVB-T “dongle” which provides a 2Msps baseband sample stream to the meteor_detector appli ...
Quartz Crystal Oscillators Glossary of Terms
... allowed when the power supply voltage is changed within its specified limits (typical ± 10% in VCC or ± 5% change). ...
... allowed when the power supply voltage is changed within its specified limits (typical ± 10% in VCC or ± 5% change). ...
RC and RL circuits. Given the following circuit with Vin = 10V sin(ωt
... against the log(ω) for ω = 10 to 109 rad/s. c) If the voltage across the capacitor is used as the output signal, Plot the gain of the circuit (Vc / Vin) against ω. The choice of log or linear is up to you, defend your choice based on the information it shows clearly. d) same question as c) but for V ...
... against the log(ω) for ω = 10 to 109 rad/s. c) If the voltage across the capacitor is used as the output signal, Plot the gain of the circuit (Vc / Vin) against ω. The choice of log or linear is up to you, defend your choice based on the information it shows clearly. d) same question as c) but for V ...
Data and Computer Communications
... share the same transmission medium, the result may be intermodulation noise. The effect of intermodulation noise is to produce signals at a frequency that is the sum or difference of the two original frequencies or multiples of those frequencies. ...
... share the same transmission medium, the result may be intermodulation noise. The effect of intermodulation noise is to produce signals at a frequency that is the sum or difference of the two original frequencies or multiples of those frequencies. ...
UMZ-T2-1042-A16-G 数据资料DataSheet下载
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
UMZ-268-D16-G
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
Lecture Notes - Transfer Function and Frequency Response File
... Apply what is learnt to radio receiver and touch-tone telephone. ...
... Apply what is learnt to radio receiver and touch-tone telephone. ...
Lecture Notes - Transfer Function and Frequency Response File
... Apply what is learnt to radio receiver and touch-tone telephone. ...
... Apply what is learnt to radio receiver and touch-tone telephone. ...
UMZ-868-D16-G MICROSTRIP VOLTAGE CONTROLLED OSCILLATOR Features
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
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.