Rate of change of frequency protection function
... The deviation of the frequency from the rated system frequency indicates unbalance between the generated power and the load demand. If the available generation is large compared to the consumption by the load connected to the power system, then the system frequency is above the rated value, and if i ...
... The deviation of the frequency from the rated system frequency indicates unbalance between the generated power and the load demand. If the available generation is large compared to the consumption by the load connected to the power system, then the system frequency is above the rated value, and if i ...
Coulomb`s Law
... – Ease of handling large quantities that can vary over many orders of magnitude. • However, keep this compression firmly in mind! For example, the Richter scale for earthquake intensity is logarithmic -- a 7 on the Richter scale actually has an amplitude 10 times more powerful than a 6, correspondin ...
... – Ease of handling large quantities that can vary over many orders of magnitude. • However, keep this compression firmly in mind! For example, the Richter scale for earthquake intensity is logarithmic -- a 7 on the Richter scale actually has an amplitude 10 times more powerful than a 6, correspondin ...
10 GHZ TRANSVERTER
... used. Description of each of them follows. The interdigital microstrip band pass (BP) filter is based on blocked both ends earthed quarter-wave resonator principle. The resonator longitude is less than quarter-wave. Shortening was done by a capacitor at the end of the resonator. This solution is ver ...
... used. Description of each of them follows. The interdigital microstrip band pass (BP) filter is based on blocked both ends earthed quarter-wave resonator principle. The resonator longitude is less than quarter-wave. Shortening was done by a capacitor at the end of the resonator. This solution is ver ...
Chapter 1 Problems
... If a receiver is underselective: a. only part of the bandwidth of the AM signal is amplified, causing some of the sideband information to be lost and distortion results. b. the tank circuits within the tuned amplifiers have too high a Q. c. when the volume control is turned up to maximum, the desire ...
... If a receiver is underselective: a. only part of the bandwidth of the AM signal is amplified, causing some of the sideband information to be lost and distortion results. b. the tank circuits within the tuned amplifiers have too high a Q. c. when the volume control is turned up to maximum, the desire ...
DUAL FREQUENCY SIDE SCAN SONAR
... The Dual Frequency Side Scan Sonar is a tool for seabed feature mapping, offering high quality results in a simple and reliable package. It offers switch selectable dual frequency operation (114 / 410 kHz). The towfish is available in depth ratings of 1000 m and 2000 m. System Components The standar ...
... The Dual Frequency Side Scan Sonar is a tool for seabed feature mapping, offering high quality results in a simple and reliable package. It offers switch selectable dual frequency operation (114 / 410 kHz). The towfish is available in depth ratings of 1000 m and 2000 m. System Components The standar ...
A Small, Light-Weight, Low-Power, Multichannel Wireless Neural
... B. Multiplexer and Buffer The two-bit binary counter which commands the multiplexer has a five-stage ring oscillator with its output being down converted by a seven-stage T-Flip Flop (T-FF) providing a switching frequency of 16 kHz for each channel. For communication applications ring oscillators ar ...
... B. Multiplexer and Buffer The two-bit binary counter which commands the multiplexer has a five-stage ring oscillator with its output being down converted by a seven-stage T-Flip Flop (T-FF) providing a switching frequency of 16 kHz for each channel. For communication applications ring oscillators ar ...
SGA-3286 Product Description DC-5000 MHz, Cascadable SiGe HBT MMIC Amplifier
... Product Features Broadband Operation: DC-5000 MHz Cascadable 50 Ohm Patented SiGe Technology ...
... Product Features Broadband Operation: DC-5000 MHz Cascadable 50 Ohm Patented SiGe Technology ...
AM radio limits
... The function of the mixer is to mix the AM signal with a sine wave to generate a new set of sum and difference frequencies. It can be shown that the mixer output is an AM signal with a constant carrier frequency regardless of the transmitter frequency. ...
... The function of the mixer is to mix the AM signal with a sine wave to generate a new set of sum and difference frequencies. It can be shown that the mixer output is an AM signal with a constant carrier frequency regardless of the transmitter frequency. ...
Lab-05 Spectrum Analyzer Introduction
... Cables and Connectors: Used to connect the voltage source (input) to the analysis equipment (the spectrum analyzer). For this lab, one particular type of unique connecter is used: a Bayonet Neill-Concelman (BNC) (also known, most sources agree erroneously, as a British Naval ...
... Cables and Connectors: Used to connect the voltage source (input) to the analysis equipment (the spectrum analyzer). For this lab, one particular type of unique connecter is used: a Bayonet Neill-Concelman (BNC) (also known, most sources agree erroneously, as a British Naval ...
A Custom built UHF to VHF downconverter
... To do the soldering of the SMD components, tweezers, glasses and a fine point soldering iron is needed. 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 tw ...
... To do the soldering of the SMD components, tweezers, glasses and a fine point soldering iron is needed. 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 tw ...
Integrated Receiver Simplifies the Analog Side of Digital Predistortion - High Frequency Electronics July 2009
... challenges of driving high-speed ADCs. For example, linear circuit analysis cannot account for the current pulses resulting from the sample-and-hold switching action of the ADC, so traditional circuit layout requires multiple iterations to define an input network that absorbs these pulses, is absorp ...
... challenges of driving high-speed ADCs. For example, linear circuit analysis cannot account for the current pulses resulting from the sample-and-hold switching action of the ADC, so traditional circuit layout requires multiple iterations to define an input network that absorbs these pulses, is absorp ...
Spectral analysis of a PWM signal
... Many microcontrollers have built-in timer peripherals that are able to output a pulse-width modulated (PWM) signal. This text uses Fourier series analysis for studying the frequency spectrum of such a signal, focusing on how the harmonics content changes with variations in duty cycle. The PWM wavefo ...
... Many microcontrollers have built-in timer peripherals that are able to output a pulse-width modulated (PWM) signal. This text uses Fourier series analysis for studying the frequency spectrum of such a signal, focusing on how the harmonics content changes with variations in duty cycle. The PWM wavefo ...
A 40 meters CW QRP Transceiver
... A particular care was dedicated to the filter design, in fact I wanted to obtain a device suited also for SSB reception. I chose a ladder 4 poles design, employing some cheap 4.433 MHz crystals for TV use. In this manner I obtained a 1.8 KHz bandpass, an acceptable compromise to receive both the CW ...
... A particular care was dedicated to the filter design, in fact I wanted to obtain a device suited also for SSB reception. I chose a ladder 4 poles design, employing some cheap 4.433 MHz crystals for TV use. In this manner I obtained a 1.8 KHz bandpass, an acceptable compromise to receive both the CW ...
Terms
... Safety equipment should always be included in home0built equipment that is powered from 120V AC power circuits = a fuse or circuit breaker in series with the AC “hot” conductor What electrical component is used to protect other circuit components from current overloads? = Fuse Unit of frequenc ...
... Safety equipment should always be included in home0built equipment that is powered from 120V AC power circuits = a fuse or circuit breaker in series with the AC “hot” conductor What electrical component is used to protect other circuit components from current overloads? = Fuse Unit of frequenc ...
Control 5 Specification Document
... noise conforming to international standard IEC 268-5 (pink noise with 12 dB/octave rolloff below 40 Hz and above 5 kHz with a peak-toaverage ratio of 6 dB), two hours duration. The entire enclosure shall be manufactured of molded polypropylene structural foam. Optional mounting brackets shall be ava ...
... noise conforming to international standard IEC 268-5 (pink noise with 12 dB/octave rolloff below 40 Hz and above 5 kHz with a peak-toaverage ratio of 6 dB), two hours duration. The entire enclosure shall be manufactured of molded polypropylene structural foam. Optional mounting brackets shall be ava ...
Superheterodyne receiver
In electronics, a superheterodyne receiver (often shortened to superhet) uses frequency mixing to convert a received signal to a fixed intermediate frequency (IF) which can be more conveniently processed than the original radio carrier frequency. It was invented by US engineer Edwin Armstrong in 1918 during World War I. Virtually all modern radio receivers use the superheterodyne principle. At the cost of an extra frequency converter stage, the superheterodyne receiver provides superior selectivity and sensitivity compared with simpler designs.