Basic Concepts
... The technology involving the generation, the manipulation, the transmission and the reception of radio waves, and the use of these to transmit information (both in analog and digital way), is called RF technology or, nowadays, wireless technology. The literal meaning of RF is Radio Frequency, but th ...
... The technology involving the generation, the manipulation, the transmission and the reception of radio waves, and the use of these to transmit information (both in analog and digital way), is called RF technology or, nowadays, wireless technology. The literal meaning of RF is Radio Frequency, but th ...
Lesson T5B - Math and Gain
... plug earphones into a device and turn the volume up or down. When output is greater than input, we call this “gain.” When output is less than input, we call this “loss.” We measure gain or loss in units called DECIBELS. The Decibel (abbreviated dB) is a “logarithmic” unit. That means it is based upo ...
... plug earphones into a device and turn the volume up or down. When output is greater than input, we call this “gain.” When output is less than input, we call this “loss.” We measure gain or loss in units called DECIBELS. The Decibel (abbreviated dB) is a “logarithmic” unit. That means it is based upo ...
X/R Ratio - Powell Industries
... highly inductive, the X/R ratio is generally significantly above unity in any utility or industrial power system. Why is the X/R ratio important? Its importance is that it affects the level of short circuit current a circuit breaker is required to interrupt. When a short circuit occurs, the rms valu ...
... highly inductive, the X/R ratio is generally significantly above unity in any utility or industrial power system. Why is the X/R ratio important? Its importance is that it affects the level of short circuit current a circuit breaker is required to interrupt. When a short circuit occurs, the rms valu ...
How to convert dBμV/m test results into Effective Isotropic
... of the theoretical sphere illustrated above. In this case, because it would be assumed that the same power is ...
... of the theoretical sphere illustrated above. In this case, because it would be assumed that the same power is ...
Appendix B: Decibel Arithmetic
... The decibel, often called dB, is widely used in radar system analysis and design. It is a way of representing the radar parameters and relevant quantities in terms of logarithms. The unit dB is named after Alexander Graham Bell, who originated the unit as a measure of power attenuation in telephone ...
... The decibel, often called dB, is widely used in radar system analysis and design. It is a way of representing the radar parameters and relevant quantities in terms of logarithms. The unit dB is named after Alexander Graham Bell, who originated the unit as a measure of power attenuation in telephone ...
DIY Factory
... even if we are in tune with the AC world it is RMS volts that we would refer to. Music is rarely a neat sine wave for a single RMS voltage to be of use. However for testing and comparing that is all we have and even though a simple single numeral would be nice it often takes more information to tell ...
... even if we are in tune with the AC world it is RMS volts that we would refer to. Music is rarely a neat sine wave for a single RMS voltage to be of use. However for testing and comparing that is all we have and even though a simple single numeral would be nice it often takes more information to tell ...
A Tutorial on the Decibel
... Sound intensity or sound pressure level (SPL) is also specified in dB. In this case, the reference level of 0 dB corresponds to a pressure of 0.0002 microbars which is the standard threshold for being able to hear a sound. As the sounds get louder, the value of SPL in dB also increases, indicating a ...
... Sound intensity or sound pressure level (SPL) is also specified in dB. In this case, the reference level of 0 dB corresponds to a pressure of 0.0002 microbars which is the standard threshold for being able to hear a sound. As the sounds get louder, the value of SPL in dB also increases, indicating a ...
Lecture Notes - Signals and Spectra File
... waveforms which can be measured in a laboratory. These waveforms satisfy the following conditions • The waveform has significant nonzero values over a composite time interval that is finite. • The spectrum of the waveform has significant values over a composite frequency interval that is finite • ...
... waveforms which can be measured in a laboratory. These waveforms satisfy the following conditions • The waveform has significant nonzero values over a composite time interval that is finite. • The spectrum of the waveform has significant values over a composite frequency interval that is finite • ...
Chap2_Lect1 - faraday - Eastern Mediterranean University
... waveforms which can be measured in a laboratory. These waveforms satisfy the following conditions • The waveform has significant nonzero values over a composite time interval that is finite. • The spectrum of the waveform has significant values over a composite frequency interval that is finite • ...
... waveforms which can be measured in a laboratory. These waveforms satisfy the following conditions • The waveform has significant nonzero values over a composite time interval that is finite. • The spectrum of the waveform has significant values over a composite frequency interval that is finite • ...
Tap 416-5: Transformers - Teaching Advanced Physics
... would you expect between VpIp and VsIs? What would this predict for the ratio Ip/Is? Comment on how closely your values match these ‘ideal’ predictions, and explain any discrepancies. ...
... would you expect between VpIp and VsIs? What would this predict for the ratio Ip/Is? Comment on how closely your values match these ‘ideal’ predictions, and explain any discrepancies. ...
Application Note 956-1 The Criterion for the Tangential Sensitivity Measurement
... pulse whose bottom level coincides with the top level of the noise on either side of the pulse (Figure 1). Although the corresponding signal-to-noise ratio depends on many system factors, the generally accepted ratio of 8 dB at the output correlates well with the tangential appearance on the oscillo ...
... pulse whose bottom level coincides with the top level of the noise on either side of the pulse (Figure 1). Although the corresponding signal-to-noise ratio depends on many system factors, the generally accepted ratio of 8 dB at the output correlates well with the tangential appearance on the oscillo ...
Sound Pressure Level
... Logarithms Logarithms are useful because we can conveniently represent very large or small numbers, and carry out multiplication of ratios by simple addition and subtraction. Some examples: ...
... Logarithms Logarithms are useful because we can conveniently represent very large or small numbers, and carry out multiplication of ratios by simple addition and subtraction. Some examples: ...
Unit 1.1 Electronic Principles: Units
... 1 microfarad is 1,000,000 Pico farads. (T5B08) Farad is the unit for capacitance. 28.400 MHz is equal to 28,400 kHz. (T5B12) If a frequency readout shows a reading of 2425 MHz, the frequency in GHz is 2.425 GHz. (T5B13) ...
... 1 microfarad is 1,000,000 Pico farads. (T5B08) Farad is the unit for capacitance. 28.400 MHz is equal to 28,400 kHz. (T5B12) If a frequency readout shows a reading of 2425 MHz, the frequency in GHz is 2.425 GHz. (T5B13) ...
Self Study Unit 1.1
... 1 microfarad is 1,000,000 Pico farads. (T5B08) Farad is the unit for capacitance. 28.400 MHz is equal to 28,400 kHz. (T5B12) If a frequency readout shows a reading of 2425 MHz, the frequency in GHz is 2.425 GHz. (T5B13) ...
... 1 microfarad is 1,000,000 Pico farads. (T5B08) Farad is the unit for capacitance. 28.400 MHz is equal to 28,400 kHz. (T5B12) If a frequency readout shows a reading of 2425 MHz, the frequency in GHz is 2.425 GHz. (T5B13) ...
