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Search results “Signals from the i f output”
#4: Oscilloscope view of TenTec 1254 IF and detected output on Shortwave signal
 
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This short video shows what the 455KHz 2nd IF signal looks like when the receiver is recovering an AM shortwave transmission. It also looks at the signal after the AM detector
Views: 6585 w2aew
HOW TO FIX PS4 NO VIDEO SIGNAL BLACK SCREEN HDMI RESOLUTION RESET
 
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PS4 no video signal is easy to fix just hold power button for 7 seconds to enter service menu then select to change resolution 480p 720p 1080p if your TV is 720p choose that setting. Also you can factory restore reset Playstation 4 by holding power button 7 seconds to service menu then select last option- PS4 initialize. Learn more about Tech, Subscribe for more tech videos- https://www.youtube.com/tampatec * Follow Tampatec on Instagram for tech videos and tech giveaways -https://www.instagram.com/tampatec/ *Follow on G+ http://bit.ly/2ormuvN * I offer free tech support only for my subscribers and followers * When working on electronics act at your own risk, follow your electronics safety manual and / or NEC safety codes, unplug power and properly discharge capacitors in circuit safely. *Some of these products I buy myself and some I receive to produce a Howto guide and review for companies but I DON'T get $$$ for product reviews. *My TV repair tools I use in my videos at my TV repair shop here- http://amzn.to/2cs67fD this supports the channel thanks Hi, I'm Paul an electronics tech from Tampa FL aka Tampatec, I post weekly, usually on the weekends. My channel is aimed for anyone that wants an easy to follow tech guide or wants to easily learn how to setup, use or fix their electronics whether it's LED LCD TV, tablets, phone repair, home automation, Google Home, Chromecast guide, Amazon Echo speaker and much more. Thanks for watching and your support!
Views: 1056980 Tampatec
No signal to Monitor Fix Easy PC Fix
 
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Check out how to troubleshoot and fix the issue of No signal to Monitor that can happen with your PC. Fix Starts- 1:55 (Hold down power for 1 Minute while plugged out) Full Article: http://www.blogtechtips.com/2016/01/03/no-signal-to-monitor/
Views: 2005912 Ricardo Gardener
Using a DDS-AD9851 to decode SSB signal via REDSUN IF output.
 
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Listening to a ham radio station by using a Shortwave Radio with a signal generator (DDS-AD9851) as a BFO. The Redsun RP-2100 is a multi-band commercial radio. It has no SSB resource. However, it has an IF AM output that allows the user to connect a BFO or a Down-Converter (455 KHz to 12 KHz) to provide SSB, DRM and others modes. In this video I am using a signal generator oscillating on 455KHz to work as a BFO.
Views: 102 Ricardo Caratti
#83: Basics of RF Mixers in Radio Receivers / Mixer Tutorial / Frequency Conversion
 
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This video describes the basic properties of RF mixers, in the context of using them for frequency conversion/translation such in the application of a radio receiver. The input and output signals are shown on the oscilloscope, and the spectrum of the output is also shown, illustrating the various frequency components that are produced by the mixing process. The concept of IF filtering in a receiver is also illustrated. The video does not go into the design of mixers, the different types of mixers, or how to select a mixer for a given application. The notes for this video can be found here: http://www.dorkage.com/youtube/RFmixersheterodyne.pdf
Views: 85219 w2aew
#170: Basics of IQ Signals and IQ modulation & demodulation - A tutorial
 
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This video presents an introductory tutorial on IQ signals - their definition, and some of the ways that they are used to both create / generate modulated RF signals, and demodulate / analyze RF signals. IQ signals are most often used in the transmit and receive paths of Software Define Radios (SDR). A PDF of the drawings can be found here: http://www.qsl.net/w/w2aew//youtube/Basics_IQ_signals_modulation.pdf
Views: 197959 w2aew
Signal-to-Noise Ratio
 
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Definition of the signal to noise ratio (SNR) and simple computations with it. More instructional engineering videos can be found at http://www.engineeringvideos.org. This video is licensed under the Creative Commons BY-SA license http://creativecommons.org/licenses/by-sa/3.0/us/.
Views: 180553 Darryl Morrell
Analog vs. Digital As Fast As Possible
 
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What Is the difference between analog and digital, and how do they work together to make modern life possible? Audible message: Thanks to Audible for supporting our channel. Get a free 30 day trial at http://www.audible.com/techquickie. Follow: http://twitter.com/luke_lafr Join the community: http://linustechtips.com License for image used in this video: https://creativecommons.org/licenses/by/3.0/legalcode
Views: 448821 Techquickie
Balanced vs. Unbalanced Cable - What's the deal?
 
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🎙Get better recordings by this weekend with your free Recording Cheat Sheet 👉 http://www.RecordingCheatSheet.com ***** CONNECT WITH ME: Facebook: http://www.facebook.com/joegildermusic Twitter: http://www.twitter.com/joegildermusic Home Studio Corner: http://www.homestudiocorner.com Music: http://www.joegildermusic.com
SDR-IQ & Siemens D2008 VLF ZF/IF = 100 khz (signal output, better speech quality)
 
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English subtitles, German speech. Sprache Deutsch, englische Untertitel. Spectravue (SDR-IQ software) http://www.rfspace.com/RFSPACE/SpectraVue.html APO Equalizer (free) http://sourceforge.net/projects/equalizerapo/files/ SDR-IQ together with Siemens D2008 level meter (mainly for VLF) SDR-IQ zusammen mit dem Siemens D2008 Pegelmesser (hauptsächlich als VLF Empfänger benutzt).
Views: 505 Wanderlinse
Transmission Lines - Signal Transmission and Reflection
 
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Visualization of the voltages and currents for electrical signals along a transmission line. My Patreon page is at https://www.patreon.com/EugeneK
How to test rca cables for audio systems
 
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YOU HAVE TOO SEE THIS https://youtu.be/VmOnHLuiB9U NEW VID UP NOW check out my new video Dunkin's 2006 gmc sierra w/ 6 psi platform 5 15's on 6 sundown scv 7500's https://youtu.be/8WNIq1FxgHs I had a friend that had problems with his system and it was just bad rca cables so I just wanted to show you how I figured out that the cables were bad. Hope this helps some of you guys sorry for the camera quality I recorded this with my phone
Views: 57126 jpsaudio08
Cable Basics; Transmission, Reflection, Impedance Matching, TDR
 
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Instruments such as the Analog Arts ST985 (www.analogarts.com), based on the TDR and wave transmission concept, characterize the length, impedance, and other characteristics of a cable. When a signal travels through a cable, it is undisturbed until it encounters an impedance change, and if it encounters an open circuit, all of the wave reflects back to the source. The characteristic impedance of the cable and the load impedance, determine what happens to the signal at the load. A higher load impedance reflects a part of the signal back to the source. There is no reflection when the load impedance is smaller than the impedance of the cable. However, smaller loads cause signal loss. An equal load impedance prevents signal reflection while delivering maximum amount of power to the load. An impedance mismatch can happen whenever the signal medium changes. For example, when the source is connected to the cable or at the load. These mismatches cause reflection and signal loss. In general, the source output impedance, cable characteristic impedance, and load impedance must be made equal for optimal performance. Impedance matching maximizes the power transfer to the load and eliminates signal reflection. A perfect impedance matching transfers half of the source power to the load. When the signal wavelength becomes a significant portion of the cable length, without a proper termination, reflection distorts the signal. The reflected wave changes the amplitude of the signal throughout the cable. At the source, it acts like a load, which if not properly addressed, can damage the signal generator. At certain frequencies, the reflected wave interferes constructively with the signal. The resultant signal is referred to as a standing wave. A TDR consists of a pulse generator, a monitoring instrument device, and a DSP. Generally, in these instruments, the generator outputs a fast transition pulse. This pulse travels to the end of the cable and reflects back. But first it is divided by the voltage divider formed due to the source resistance and the cable impedance. The division factor is then calculated based on which the impedance of the cable is found. The divided signal travels through the cable at a fraction of the speed of light in vacuum. This fraction is referred to as the velocity factor of the cable. For a coax it is about point 67. The time it takes for the signal to reach the end of the cable and reflect to the source, is used to calculate the length of the cable. Impedance matching maximizes the power transfer to the load and prevents reflection. Damaging a cable, by twisting, bending, or kinking, or placing improper signal connectors in the signal path cause an impedance mismatch resulting in reflection, and consequently less than ideal signal handling.
Views: 13671 Academia
Analog to Digital Converters (ADC) Part 1 www.embeddedteacher.com
 
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This video illustrates what an Analog to Digital Converter (ADC) is, why it is important, the basic parameters of ADC, Types of ADCs It also covers illustrations of how single slope ADC works and also how Dual slope ADC works. This video is useful for second and third year electronics/electrical engineering students. Please visit http://www.embeddedteacher.com to know more about the teacher.
Views: 256293 Vidhyadhar Dharmadhikari
3 WAYS TO FIX HDMI INPUT "NO SIGNAL" PROBLEMS, TROUBLESHOOT GUIDE
 
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1 check cable cord and HDMI devices to TV for a bad connection by wiggling the cable to check if "no signal" changes to a picture 2 reset HDMI devices and TV by unplugging power for 30 seconds or updating firmware which will fix memory corruption 3 if you narrowed the problem to TV main board then replace it or fix the main board, watch these videos below for BEST HDMI repair Louis Rossmann IC repairs-https://www.youtube.com/user/rossmanngroup Ipad Rehab "PS4 HDMI repair"-https://www.youtube.com/watch?v=PlHuqoX2hIA&t=7s Learn more about Tech and Subscribe for more tech videos- https://www.youtube.com/tampatec Follow Tampatec on Instagram for Quick tech videos-https://www.instagram.com/tampatec/ * I offer free tech support only for my subscribers and followers * When working on electronics act at your own risk, follow your electronics safety manual and / or NEC safety codes *Some of these products I buy myself and some I receive to create a Howto guide and review for companies but I DON'T get $$$ for product reviews. *My TV repair tools I use in my videos at my TV repair shop here- http://amzn.to/2iLHxae Hi, I'm Paul an electronics tech from Tampa FL aka Tampatec, I post weekly usually on the weekends. My channel is aimed for anyone that wants an easy to follow tech guide or wants to easily learn how to fix their electronics, whether it's LED LCD TV repair, tablet repair, phone repair and more. I also do tech reviews, my tech giveaways is on my Instagram only my subscribers / followers- https://www.instagram.com/tampatec/ Thanks for watching and your support!
Views: 361087 Tampatec
How to use an oscilloscope with an A/C source
 
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This clips shows how to use an oscilloscope to measure the frequency and voltage of a signal from an A/C source
Views: 354076 UCTPhysics
Difference between Analog and Digital Signals & Technology
 
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We see both Analog and Digital devices around us. But have you ever observed the difference between them or what in particular makes them different. Well we do that in this video and discuss a lot of Science related to Signals, Waves and Music. We discuss about the future, Nyquist Rate and much more. ------------------------- Further Reading : https://en.wikipedia.org/wiki/Analog_signal https://en.wikipedia.org/wiki/Digital_signal http://www.linear.com/products/analog-to-digital_converters_(adc) https://en.wikipedia.org/wiki/Bit_rate https://en.wikipedia.org/wiki/MP3 -------------------------------------------- Thanks for watching. Please Subscribe the channel. Like and share this video. Catch us on Fb : www.fb.com/alldaySCI Catch us on Twitter : @alldaySCI Catch us on Instagram : alldaySCIENCE --------------------------------------------- Music Used : Italian Morning by Twin Musicom is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Artist: http://www.twinmusicom.org/
Views: 78560 Gyaanism
How to Fix Chromecast No TV Signal Black Screen & Not Working Issues Help Guide
 
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For more Google Chromecast troubleshoot Help see guide here- https://support.google.com/chromecast/answer/6345122?hl=en LED status light on Chromecast- https://support.google.com/chromecast/answer/6280256 Learn more about Tech and how to fix Tech, Subscribe to Tampatec here- https://www.youtube.com/tampatec * Follow Tampatec on Instagram for tech videos and tech giveaways -https://www.instagram.com/tampatec/ *Follow on G+ http://bit.ly/2ormuvN * I offer free tech support for my subs and followers *Some of these products I buy myself and some I receive for free to produce a Howto guide or / and review for companies but I DON'T get $ for positive product reviews. Soldering kit- http://amzn.to/2DnJUZI TV wall mounting- http://amzn.to/2DvCac5 *links supports my tech channel Hi, I'm Paul an electronics tech from NYC area but live in Tampa bay area currently aka Tampatec, I post weekly usually on the weekends. My How-to tech channel is aimed for the novice tech or anyone that wants an easy to follow tech guide or wants to easily learn how to setup, use, or fix their electronics. whether it's LED LCD TV, tablets, phone repair, home automation setup, Google Home, Chromecast guide, Echo dot tutorials, just to name a few. I'm here to help for free, just subscribe. *DISCLAIMER When working on electronics or installing, act at your own risk. follow safety manuals and / or NEC safety codes, unplug power, please watch other howto videos for a better understanding. Tampatec is not responsible for damages or misunderstanding info in the videos. I believe in this famous quote- give a person a fish they eat for a day but teach that person to fish and they will eat for a life time. Thanks for watching and your support!
Views: 15022 Tampatec
#75: Basics of Opamp circuits - a tutorial on how to understand most opamp circuits
 
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This tutorial discusses some general rules of thumb that make it easy to understand and analyze the operation of most opamp circuits. It presents some ideal properties of opamps, and discusses how negative feedback generally causes the input voltage difference to be equal to zero (input voltages are made equal by the action of negative feedback). In other words, the output will do whatever it can to make the input voltages equal. Applying this simple fact makes it easy to analyze most opamp circuits. A copy of the drawings can be found here: http://www.qsl.net/w/w2aew//youtube/Basics_of_opamps.pdf
Views: 543451 w2aew
Duty cycle, frequency and pulse width--an explanation
 
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These terms are often confused or used interchangeably, when they are actually three different ways of measuring an electrical signal.
Views: 164513 Justin Miller
High Res Wifi Signal Mapping
 
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Special Thanks to Unit-E technologies and Eric Holniker for letting me use their mill. Check out Neon FM here: https://www.youtube.com/watch?v=ADV7C16356c Voxeltastic: http://cnlohr.github.io/voxeltastic/ HackADay IO: http://hackaday.io/project/4329-wifi-power-mapping Imgur: http://imgur.com/gallery/jdNA6 Github: WebGL Visualization tool: https://github.com/cnlohr/voxeltastic Data Compositing: https://github.com/cnlohr/wificompositer Firmware for ESP8266: https://github.com/cnlohr/ws2812esp8266 Software for reading data from mill and getting wifi RX power: https://github.com/cnlohr/wifirxpower Software for compositing video into a single long-exposure image: https://github.com/cnlohr/superlongexposure
Views: 497425 CNLohr
When Does Cable Length Matter?
 
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What's the truth about cable length? Do shorter cables always mean a better signal? Has digital technology made the question irrelevant, or is it still something you should think about? Squarespace link: Visit http://squarespace.com/techquickie and use offer code TECHQUICKIE to save 10% off your first order. Follow: http://twitter.com/linustech Join the community: http://linustechtips.com
Views: 1010538 Techquickie
IF Signals of Pulse-Counting FM Receiver
 
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The IF signals of a pulse-counting wide-band FM receiver. http://www.vk2zay.net/article/250 Note in the quiet passages the visible phase jitter caused by the 19 kHz pilot tone associated with the FM stereo multiplex sub-carrier system. The top trace is the IF amplifier/limiter output, the bottom is the collector signal at the 1st half of the pulse-integrator.
Views: 2975 vk2zay
Fiber optic cables: How they work
 
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Bill uses a bucket of propylene glycol to show how a fiber optic cable works and how engineers send signal across oceans. More info at http://www.engineerguy.com. You can translate captions at http://www.engineerguy.com/translate
Views: 3478470 engineerguy
What is Sensor Calibration and Why is it Important?
 
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✅ C'mon over to https://realpars.com where you can learn PLC programming faster and easier than you ever thought possible! ============================= ✅ Check out the full blog post over at https://realpars.com/sensor-calibration/ ============================= When engineers design modern process plants, they specify sensors to measure important process variables, such as flow, level, pressure, and temperature. These measurements are used to help the process control system adjust the valves, pumps and other actuators in the plant to maintain the proper values of these quantities and to ensure safe operation. So how does a plant maintain the operation of these sensors to guarantee that the actual value of the process is sensed and passed to the control system? In this video, you will learn that the answer to that question is: “Sensor Calibration”. Sensor calibration is an adjustment or set of adjustments performed on a sensor or instrument to make that instrument function as accurately, or error-free, as possible. An error is simply the algebraic difference between the indication and the actual value of the measured variable. Errors in sensor measurement can be caused by many factors. First, the instrument may not have a proper zero reference. Modern sensors and transmitters are electronic devices, and the reference voltage, or signal, may drift over time due to temperature, pressure, or change in ambient conditions. Second, the sensor’s range may shift due to the same conditions just noted, or perhaps the operating range of the process has changed. For example, a process may currently operate in the range of 0 to 200 pounds per square inch, but changes in operation will require it to run in the range of 0 to 500 pounds per square inch. Third, error in sensor measurement may occur because of mechanical wear, or damage. Usually, this type of error will require repair or replacement of the device. Errors are not desirable since the control system will not have accurate data from which to make control decisions, such as adjusting the output of a control valve or setting the speed of a feed pump. If the calibration is too far from the accurate process conditions, process safety may be jeopardized. To perform an “as-found” check, an accurate and precise instrument is used to develop process signals corresponding to 0%, 25%, 50%, 75% and 100% of the process range of the transmitter. The corresponding transmitter output, in milliamps, is observed and recorded. This is called a “5-point” check. Then, in order to check for hysteresis, a phenomenon whereby the sensor output for a process value is different going 'downscale' as it is going 'upscale', the output signals corresponding to 100%, 75%, 50%, 25%, and 0% in order are recorded. The deviations at each checkpoint are calculated and compared to the deviation maximum allowed for the device. If the deviation is greater than the maximum allowed, then a full calibration is performed. If the deviation is less than the maximum allowed, then a sensor calibration is not required. If we have an analog transmitter, we must adjust zero and span to reduce the measurement error. With an analog transmitter, there is a ZERO and SPAN adjustment on the transmitter itself. Zero adjustment is made to move the output to exactly 4 milliamps when a 0% process measurement is applied to the transmitter, and the Span adjustment is made to move the output to exactly 20 milliamps when a 100% process measurement is applied. Unfortunately, with analog transmitters, the zero and span adjustments are interactive; that is, adjusting one moves the other. Therefore, the calibration is an iterative process to set zero and span, but only 2 to 3 iterations are usually required. ============================= Missed our most recent videos? Watch them here: https://realpars.com/ethernet/ https://realpars.com/fieldbus/ https://realpars.com/function-block/ ============================= To stay up to date with our last videos and more lessons, make sure to subscribe to this YouTube channel: http://goo.gl/Y6DRiN ============================= TWEET THIS VIDEO https://ctt.ac/enA08 ============================= Like us on Facebook: https://www.facebook.com/therealpars/ Follow us on Twitter: https://twitter.com/realpars Follow us on LinkedIn https://www.linkedin.com/company/realpars
Views: 3698 RealPars
Industrial Control Panels in depth look Part 2: IO
 
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Today we are going to be talking in depth about the different types of IO that can be wired into a panel. We will discuss how to actually wire the I/O. We will also show you some steps that are critical to ensure that the devices being wired into the panel are sending and receiving that data as intended. Let’s first discuss the different signal types that make of the various types of IO in a panel. Let’s first talk about Digital signals. Digital signals are designed to measure and control a value that is either on, or off. It’s easy to think of this like a common light switch in our home. We can turn it off or off, but we do not have the ability to control how much light we get, or how bright or dark the light is. This is again, how digital signals work. On or off, or True or false, or one or zero. An industrial example of this would be: the status of a motor, it is either running or not running. Or sending a command to start or stop that same motor, we only have two choices, on or off. Now let’s talk about Analog signals. Analog signals are intended to measure and control a range of values. To better illustrate this point, think of that same light switch. Instead of just turning the light on or off, let’s assume we are using a dimmer switch. The dimmer switch gives us the ability to turn the light on and off, but also allows us to manipulate the light output anywhere in-between the fully on and fully off state of that switch. This is again, how an analog signal works. We measure and control and range of values. An industrial example of this would be: the level in a tank, or the amount of flow or pressure within a pipe. Now that we have talked about both digital and analog signals, lets discuss how we can use those signals. In these control signals, we have the ability to either send data out, or receive data back to our panel. This data input and output is ultimately what gives that the ability to monitor and control the intended environment. When we send data out, this is referred to as an output signal. You can use both analog and digital signals when sending an output. For example, a digital output mike be a run command to a motor. So, in this case, you would send a signal that tells a motor to either start or stop. An analog output could be used to actually control the speed of that motor, since analog signals give you the ability to control a range of values. These again, are examples of output signals Now let’s talk about input signals. Inputs are when we receive data from either and digital or analog source. This data is captured and interpreted by the PLC (or programable logic controller) Just like with output signals, inputs can be either digital, (which might be telling you if a motor is running, or if a door has been opened) or analog (which would be able to tell you if the pressure in a pipe is too high, or the level in a water tank). All of these are examples of input signals There are other signal types that we have not discussed such as an RTD, or Thermocouple that can also make up the IO within an industrial control. Now that we about talked about the most common signals you will find in a panel that make up the IO, let me show you in this panel, where each type is located, and how to wire them to make sure you can send and receive data properly. First-analog inputs - Analog signals need to be wired with a special kind of wire known as twisted shielded pair. This kind of wire will have two conductors, as well as a shield wrapped around the wire to protect the signal from any noise or distortion. It also has a ground wire. This wire Must be tied to ground within the panel. Not at the instrument. - Depending on how the instrument is being powered, will determine how you will wire a analog signal. In this case the panel is providing power, which is being sent out to the instrument on this wire. - The signal that tells the PLC the value you need will come back on the signal wire, and is ultimately tied to the PLC. Now Analog outputs - Wired much the same way,. - We don’t need to supply power in most cases - Still need to ground the TSP Digital inputs - Power is wired to the terminal blocks and sent to the device. Normally low voltage (24VDC) - The device will have a set of contacts, that when close will allow power to be brought back to the panel, and ultimately into the PLC. When the PLC senses this voltage, it reads this as “true”, or “on” - Normal wire is used Digital Outputs - Normal wire is used - Low voltage signal to a relay Make sure the coil on the relay matches the output voltage of the PLC - The coil then switches a higher voltage output signal Maybe to a motor or solenoid valve By properly organizing and wiring your IO, you will be able to successfully monitor and control all devices and instruments in the field without any problems.
Views: 16881 RSP Supply
Wi-Vi: See through Walls with Wi-Fi signals
 
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Wi-Vi is a new technology that enables seeing through walls using Wi-Fi signals. The video shows the output of Wi-Vi (blue window) when a person moves around in a room. It can track whether there is a moving human inside the room and how he is moving. Read more about it at: http://people.csail.mit.edu/fadel/wivi/
Views: 275948 Fadel Adib
Why using 4-20mA in industry
 
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Why the industry standard is 4-20mA? why current signal instead of typical voltage signals? All of that is discussed in this episode. Help by donating from the link in upper left. Slides are also available in the upper left section via Slideshare.
Views: 74120 Thundertronics
Lecture 30 | Behavior of LTI System with Sinusoidal Input | Signals & Systems
 
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GATE ACADEMY launches its products for GATE/ESE/UGC-NET aspirants. Postal study course - https://gateacademy.co.in/postalcourse.php Pen Drive and G Drive course - https://gateacademy.co.in/pendrivecourse.php Online Live Classes - https://gateacademy.co.in/liveclassroom.php Visit the above links for more information and pricing information. You can also contact us on - +91-9109192176 +91-9109183176 ----------------------------------------------------------------------------------------------------------- GATE ACADEMY launches its products for GATE/ESE/UGC-NET aspirants. Postal study course - https://gateacademy.co.in/postalcourse.php Pen Drive and G Drive course - https://gateacademy.co.in/pendrivecourse.php Online Live Classes - https://gateacademy.co.in/liveclassroom.php Visit the above links for more information and pricing information. You can also contact us on - +91-9109192176 +91-9109183176 ----------------------------------------------------------------------------------------------------------- Subject- Signals & System Topic - Behavior of LTI System with Sinusoidal input Faculty- Mr. Sujay Jasuja Sir GATE ACADEMY is the India"s leading institute with best teaching practices and most affordable fee. Dear viewer, if you have any doubt on this topic join our interactive session at our FB group to have a direct interaction with our faculties & clarify your doubts. Doubt solving facebook group - https://www.facebook.com/groups/gateconcepts Check out our web & facebook page for more details. 1. Web: www.gateacademy.co.in 2. Email: [email protected] 3. For any doubt join us :https://www.facebook.com/groups/gateconcepts 4. Like us: https://www.facebook.com/gateacademyofficial 5. Instagram - gate_academybhilai Do not Forget to watch the videos of below mentioned subjects : 1. Analog Electronics - https://goo.gl/UFxDKV 2. Engineering Mathematics - https://goo.gl/9rLYLq 3. Signal & System - https://goo.gl/rDfWjC 4. Communication System - https://goo.gl/rDfWjC 5. Analog Electronics | Live Classroom - https://goo.gl/gZUDdK 6. Electrical & Electronic Measurement - https://goo.gl/uZJhES 7. Control Systems - https://goo.gl/fsuwGV 8. Electromagnetic Theory (EMT) - https://goo.gl/ToVDgU 9. Digital Electronics - https://goo.gl/TUR8Fj 10.Network Theory - https://goo.gl/bcNKLB 11.Unfiltered Conversation - https://goo.gl/XziCfi
Views: 9800 GATE ACADEMY
Difference between Analog and Digital | AddOhms #6
 
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Learn the secret between Digital that people don't like to talk about at parties. Just what is it and how does it compare to Analog? We'll take a look using Clocks! Links mentioned in video: AddOhms Episode 5: http://www.addohms.com/ep5 Adafruit ADXL377 Breakout board: http://www.adafruit.com/products/1413 Arduino (In case you need it): http://www.arduino.cc Twitter: @addohms www.addohms.com
Views: 245538 AddOhms
How to test if your factory radio has a variable voltage output to the factory amp
 
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IN this video we Test the signal output of a factory radio going into a factory amp. We are trying to find out if the signal is fixed or variable going into the factory amp. Doing this test will tell us if we need high to low adapters, a summing system, or just adding on some RCA's. You will need at least a digital multi meter to do this test on your system. Set the meter to AC voltage and play a pink noise test tone in the factory radio. Connect the meter leads to the radio signal and turn to volume up and down to see if the voltage changes. tools used Paa3 http://amzn.to/29NSPaS fluke meter http://amzn.to/2cHDp7z
Views: 5821 Five Star Car Stereo
Understanding Wavelets, Part 3: An Example Application of the Discrete Wavelet Transform
 
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This video outlines the steps involved in denoising a signal with the discrete wavelet transform using MATLAB®. •Try Wavelet Toolbox: https://goo.gl/m0ms9d •Ready to Buy: https://goo.gl/sMfoDr Learn how this denoising technique compares with other denoising techniques. Video Transcript: In this video, we will discuss how to use MATLAB to denoise a signal using the discrete wavelet transform. Let us load a signal and plot it in MATLAB. There are two signals here. The first is the original, signal and the second one is the original signal with some noise added to it. Our goal here is to denoise the noisy signal using the discrete wavelet transform technique. Soon you will see how easy it is to do this in MATLAB. Here is an overview of the steps involved in wavelet denoising: 1. Your first step is to obtain the approximation and detail coefficients. Do this by performing a multilevel wavelet decomposition. Recall that the discrete wavelet transform splits up a signal into a low pass subband (also called the “approximation level”) and high pass subband (also called the “detail level”). You can decompose the approximation sub band at multiple levels or scales for a fine scale analysis. 2. The second step is to analyze the details and identify a suitable thresholding technique. I will cover this later in the video. 3. The third step is to threshold the detail coefficients and reconstruct the signal Let us first perform a multilevel wavelet decomposition using the function wavedec. We will use a sym6 wavelet and decompose the noisy signal down to 5 levels. The function outputs the fifth level approximation coefficients along with the detail coefficients from levels 1 through 5. The first level details coefficients captures the high frequencies of the signal. Most of the high- frequency content is comprised of the noise present in the signal. However, part of the high frequency is made up of abrupt changes in the signal. There are times when these abrupt changes carry meaning, and you would want to retain this information while removing the noise. Let us take a closer look at the details sub band. To extract the coefficients, you can use the detcoef function and plot the coefficients for each level. I am using a helper function to extract and plot the coefficients. What you are seeing here is the original signal along with the details plotted for levels 1 through 45. Notice that the activity reduces drastically as the scale or /level increases. So, we will focus on the level 1 details and ignore the rest for now. Our aim here is to retain these sharp changes while getting rid of the noise. One way to do this is by scaling the detail coefficients by a threshold. There are four main techniques available in MATLAB to help you compute a threshold. for the purpose of denoising The universal threshold is the simplest to compute and is computed using this formula. Manually computing the threshold for the other three denoising techniques is not as straightforward. Instead, you can use MATLAB for this, so that you can focus on using the threshold value without worrying about how it is computed. There are two ways of applying the threshold. There are two thresholding operations, Soft thresholding and hard thresholding. In both cases, the coefficients with magnitude less than the threshold are set to zero. The difference between these two thresholding operations lies in how they deal with coefficients that are greater in magnitude than the threshold. In the case of soft thresholding, the coefficients greater in magnitude than the threshold are shrunk towards zero by subtracting the threshold value from the coefficient value, whereas in hard thresholding, the coefficients greater in magnitude than the threshold are left unchanged. Coming back to our example, let us denoise our noisy signal using sure shrink with the soft thresholding technique. Soft thresholding is a good starting point if you are not sure which technique to choose. The entire process of thresholding the coefficients and reconstructing the signal from the new coefficients can be done using a single function as shown here. The first parameter, f, is the noisy signal, the second parameter specifies the thresholding technique - in this case, sure shrink. 's' denotes soft thresholding, and the parameter 'sln' indicates threshold rescaling using a single estimate of noise based on first level coefficients. Level indicates the wavelet decomposition level and the last parameter specifies the wavelet, which is sym6 in this case. The function wden performs a multilevel decomposition of the input signal, computes and applies the threshold to the detail coefficients, reconstructs the signal with the new detail coefficients, and provides it as an output. Let us now use the plot command to compare the noisy signal with the denoised signal - which was the output of the previous step.
Views: 68791 MATLAB
PC Troubleshooting No Post Diagnosis (NCIX Tech Tips #54)
 
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In this episode of NCIX Tech Tips Linus will walk you through the steps to diagnose your PC if it won't boot.
Views: 748668 NCIX Tech Tips
How to improve your wireless broadband signal
 
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You might be paying through the nose for a bleeding-edge broadband service but if you've not set your router up properly, you could be paying for an expensive bottleneck. Check out our top five tips improving WiFi performance at home [sponsored content]. Subscribe to Recombu for more great content: http://bit.ly/1f3dxSq Read the full feature on Recombu.com: http://bit.ly/1yUil3Q --------------------------------------------------------------------------------------- Recombu's Thomas Newton rattles off five tips on how to boost WiFi performance in the home. From changing wireless channels to investing in Powerline adapters, we go through simple, easy to action tips that should give your creaky WiFi a kickstart. --------------------------------------------------------------------------------------- Follow us on Twitter: http://www.twitter.com/recombu Like our Facebook page: http://www.facebook.com/recombu Find Recombu on Google Plus: http://bit.ly/1n2xtri Read our Website: http://www.recombu.com Like, Comment, Subscribe!
Views: 383058 Recombu
Signal Analysis using Matlab -  A Heart Rate example
 
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A demonstration showing how matlab can be used to analyse a an ECG (heart signal) to determine the average beats per minute. Code available at http://dadorran.wordpress.com/2014/05/22/heartrate-bpm-example-matlab-code/
Views: 153672 David Dorran
Bonus video of wiring a push button switch to output high or low signals for upcoming circuit video
 
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https://www.youtube.com/electronzap Previous video I did that is often referred to in this one https://youtu.be/fWKGWIXlRuQ Changed how I want to high/low trigger an upcoming circuit to either the positive side of the power supply (high) or to to low side (ground, low, 0V if single supply Psource). I talk about the process in this video. Due to working lots of extra hours, I'm slowly working on this circuit and uploading videos to get better at explaining, and preparing for the unexpected, while I am making the final video. Hope you enjoy these video too! https://www.patreon.com/electronzap https://www.twitch.tv/electronzap https://twitter.com/electronzap https://www.facebook.com/electronzap/ https://www.reddit.com/user/electronzapdotcom https://www.reddit.com/r/ElectronicsStudy/ https://www.pinterest.com/electronzap/
Views: 71 electronzapdotcom
25 Minecraft Redstone Circuits YOU SHOULD KNOW!
 
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Leave a LIKE if you enjoy these slightly longer videos! Today we take a look at 25 different circuits that you can use inside your redstone builds! This should give you everything you need to take on redstone projects of any size (WITHIN REASON!). CONTENTS OF THE VIDEO: - CLOCKS - MONOSTABLES - T FLIP FLOPS - PULSE EXTENDERS - LOGIC GATES - RS NOR LATCHES - DOUBLE EXTENDERS - BUD SWITCHES The Mumbo Merch Store! It's beautiful! http://capncook.com/collections/mumbo-jumbo Become a Patron for a spot on the Patreon Server! https://www.patreon.com/ThatMumboJumbo My INSANE PC was kindly provided by Chillblast, a company specialising in Performance systems. We have a full range available with 3 systems of varying price and power! Check them out here: https://www.chillblast.com/mumbo-jumbo-official-computers.html My server is kindly provide by CubedHost free of charge! Click this link to get a 25% discount off one of their servers! http://cubedhost.com/thatmumbojumbo 2ND CHANNEL: https://www.youtube.com/OfficialMumbo TWITTER: https://twitter.com/ThatMumboJumbo INSTAGRAM: http://instagram.com/officialmumbo OFFICIAL MUMBO JUMBO PCS: https://www.chillblast.com/mumbo-jumbo-official-computers.html ------------------------------------------------- My texture pack is Faithful and Codecrafted combined. Faithful: http://www.minecraftforum.net/forums/mapping-and-modding/resource-packs/1223254-faithful-32x32-pack-update-load-of-new-ctm-1-7 CodeCrafted: https://www.youtube.com/watch?v=TL2IKidhWb4 Intro: ProleteR - Can't Stop Me outro: ProleteR - April Showers http://www.youtube.com/user/proleterbeats https://www.facebook.com/ProleteR.beats http://proleter.bandcamp.com/ Upload Schedule: Tuesday - Redstone Wednesday - Hermitcraft Thursday - Redstone Friday - Hermitcraft Saturday - Redstone Sunday - Hermitcraft
Views: 1167807 Mumbo Jumbo
#19: How to get a stable scope display with two signals very close in frequency
 
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This video shows how to setup a scope, analog or digital, to give you a stable display of two signals that are very close in frequency. The problem usually arises that the two signals are from different sources, or are not phase locked, and one of them "walks" on the display while the other is stable. This is because there will almost always be a very small difference in frequency between the two. The video shows how to setup the appropriate trigger mode on an analog scope to get a stable display of both waveforms, or how to use a single-sequence (single acquisition) on the digital scope to accomplish the same thing.
Views: 13286 w2aew
Joule Thief: Time Course of Events Using PhotoTransistor to Monitor LED Output
 
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Here I've placed a phototransistor, NTE3037, to monitor the light output of the LED. The purpose is to determine exactly when and how much the LED is turning on, compared to the electrical signals in the circuit. First I use a cheapo PhotoVoltaic (solar) cell to show the basic light pulse timing and the rough shape of the light curve. Then I switch to the phototransistor which has a much higher amplitude and less noisy output, but whose output wave shape depends somewhat on its supply voltage. The deepest dips in the Input Battery Voltage trace seems to occur right at the moment of LED turn-on. The voltage can actually climb above this lowest point during the LED's "ON" period. I didn't show it in this video, but I've hooked an identical LED to my Function Generator and used the FG to send pulsed square wave signal to the LED.... the output of the Phototransistor tracks the brightness level of the LED exactly: if I give it a square pulse, flat along the top, at the same frequency as the JT pulses, the PT responds with the same shape output. So the decreasing ramp light output that is detected in the JT circuit pulses seems to be real, not an artefact of the phototransistor. The reason it doesn't show up as well in the second half of this video is because I used a fresher battery for the JT and the light output is more constant during the pulse... but it still ramps downward.
Views: 613 TinselKoala
Forex Trading Signals - Trading Profits of $760 in just 72 seconds!
 
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Forex Trading Signals: http://www.toplaunchreview.com/go/abs/ Free Bonus : http://www.toplaunchreview.com/free-bonus Forex trading signals are usually chosen by traders through shopping lists for their shows exactly what they want . The most reasonable approach would be how each indicator and use this information to create a single trading system . Forex trading signals are the price action that caused the entry / exit adjustment or intra - . Trading signals provide a clear writing for trades typically based on technical indicators. A technical indicator is a specific mathematical formula applied to the price list and display within the selected time interval . Graphics are used to view the price and technical indicator in a variety of time intervals . The data is updated every minute to a graph of a minute, every hour , for a table of 60 minutes , etc. Once you have a good understanding of intervals and their effect on technical indicators , you can start looking for forex trading signals for entering the market . A number of traders who seek a clear and easy to read technical signal which tells them when to enter the market. As the trading signal is based on a specific interval graph , noting that the card is a practice that the operator uses to market entry . The trader can even use other signals based on interval create input Forex trading signals. Forex trading signals After an exchange is identified by the input signal , the driver concentrates on the output plane . The operator has the option of fixed stops , trailing stops , the outputs of career , or to exit the trade signals . You can use a forex trading signal to enter a trade in order to capture an investment. If, for example , a currency pair has recently been on a short swing that you want to capture as soon as possible when it is time to make the most profit possible. Forex trading signals This turn is a great sign for the entrance and can also be a great signal to send short operation. Forex trading signals Some traders like outputs career. They frequently exchange and a high percentage , but generally low pips . An alternative view would be to use signals to manage the outputs. The signals can be conservative, if necessary, but the output signals are generally better capture the movement out "real" limit. What signs should you use ? It is a personal choice of the individual to operator. The objective is to make an informed decision and commit to it . Learn everything you can about the technical indicators and the use that he feels best suits your needs Forex trading signals. You can combine the signals or implement the signal parameters to improve performance and reduce the risk of false movements .Forex trading signals All forex trading signals feature a unique perspective on the market. Using a range of signs of a good system of checks and balances to ensure that the market moves in the expected before making a business decision sense Forex trading signals .
Views: 2277 Forex4Options
#45: Sweep Generator Basics and Receiver Alignment
 
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This video discusses the basics of a sweep generator, and how it can be used to observe the alignment of IF filters in a receiver. The video starts out by briefly discussing the frequency response characteristics of typical IF transformer cans, and how you and "manually" observe their response using a simple signal generator and a scope. Then, the fundamentals of a sweep generator / oscillator are discussed, and how these can be used to observe the "shape" of the frequency response of a resonant circuit like an IF transformer. The benefits of using a sweep gen, including the ability to observe whether multiple IF transformers in a single IF chain are aligned, or to see the "shape" of the skirts of a filter, is shown. While the video shows just a single IF can as an example, these same techniques can be used to align a receiver's IF by injecting the signal at the appropriate point in the IF, and monitoring its response.
Views: 71993 w2aew
How to Use the Redstone Comparator in Minecraft!
 
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Leave a LIKE if you found this useful! Today we take a look at how to use the redstone comparator in Minecraft, running you through the very basics, through to some circuits that make use of it's functionallity! MY LATEST VLOG: https://www.youtube.com/watch?v=MJZA2NfIczU World: http://www.mediafire.com/file/qm95038vu4o913z/Comparators.zip EQUATION: signal strength = truncate(1 + ((sum of all slots' fullnesses) / (number of slots in container)) * 14) fullness of a slot = (number of items in slot) / (max stack size for this type of item) The Mumbo Merch Store! It's beautiful! http://capncook.com/collections/mumbo-jumbo Become a Patron for a spot on the Patreon Server! https://www.patreon.com/ThatMumboJumbo My INSANE PC was kindly provided by Chillblast, a company specialising in Performance systems. We have a full range available with 3 systems of varying price and power! Check them out here: https://www.chillblast.com/mumbo-jumbo-official-computers.html My server is kindly provide by CubedHost free of charge! Click this link to get a 25% discount off one of their servers! http://cubedhost.com/thatmumbojumbo 2ND CHANNEL: https://www.youtube.com/thatmumbojumbo2 TWITTER: https://twitter.com/ThatMumboJumbo INSTAGRAM: http://instagram.com/officialmumbo OFFICIAL MUMBO JUMBO PCS: https://www.chillblast.com/mumbo-jumbo-official-computers.html ------------------------------------------------- My texture pack is Faithful and Codecrafted combined. Faithful: http://www.minecraftforum.net/forums/mapping-and-modding/resource-packs/1223254-faithful-32x32-pack-update-load-of-new-ctm-1-7 CodeCrafted: https://www.youtube.com/watch?v=TL2IKidhWb4 Intro: ProleteR - Can't Stop Me outro: ProleteR - April Showers http://www.youtube.com/user/proleterbeats https://www.facebook.com/ProleteR.beats http://proleter.bandcamp.com/ Timelapse: LAKEY INSPIRED https://soundcloud.com/lakeyinspired Upload Schedule: Tuesday - Redstone Wednesday - Hermitcraft Thursday - Redstone Friday - Hermitcraft Saturday - Redstone Sunday - Hermitcraft
Views: 1122073 Mumbo Jumbo
Inside the Project MC2 video purse.  (Actual video wall panel!)
 
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This is rather high tech merchandise from a TV series called Project MC2. It's about a group of female government operatives engaged in covert activities to save the world. The slightly hideous hard plastic bag is actually very well designed for what it is, and contains some jaw-droppingly advanced components for a toy. And by that I mean a proper LED module you'd find in full size video walls. Even more impressive is that all the components used are off the shelf except for the mystery microcontroller under a blob of black resin. Adafruit have an extensive PDF datasheet showing how to connect panels like this to an Arduino. https://cdn-learn.adafruit.com/downloads/pdf/32x16-32x32-rgb-led-matrix.pdf Adafruit's main website:- https://www.adafruit.com/ Note that the display is "dumb". It is just a series of shift registers to load LED data across the display and some control lines for scanning 8 pairs of rows. It's actually so simple that with a 3V supply (to limit the current while abusing it) you can generate rogue data and row drive signals by running your fingers across the serial input connector pins. The simplicity of the display means that it doesn't do any fancy image storage on the panel. You have to keep firing out serial data and scanning the lines to get an image. When you realise how it works you suddenly recognise all the visual effects you get when sections of video wall fail. It's usually down to bad interconnects dropping colour data or clock/strobe/output-enable signals between boards. If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- http://www.bigclive.com/coffee.htm This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
Views: 55811 bigclivedotcom
FFT Tutorial
 
06:30
Tony and Ian from Tektronix present a FFT Tutorial (Fast Fourier Transform) covering what is FFT, an explanation of the FFT function as well as different FFT applications. They explain how the FFT works with a FFT example and show an oscilloscope demo to demonstrate how helpful the FFT can be. What is FFT? In the video, "How to Use an Oscilloscope" (http://youtu.be/tzndcBJu-Ns), an oscilloscope was used to look at a single sine wave. But when you connect an oscilloscope to a live circuit, you rarely see something so simple. On real projects, you're usually looking at combinations of signals. The FFT lets you break down the data you've captured and see what it's made of. FFT Example One FFT example is when you want to understand your own signal. If you're designing a circuit board, and you attach your oscilloscope probe at the antenna, you're expecting the signal at the antenna to be at the frequency you designed it for. What you actually see is an extra signal. That extra signal is at a different frequency, and it's one you didn't expect to see. You'll notice you can't see it on the regular oscilloscope display before the FFT because it's 1/1000th the amplitude of the signal you're expecting. In the video FFT example, the cause is likely harmonic distortion since it's a multiple of the frequency we're expecting. If it were an exact multiple of some known clock board, then the likely cause would be cross-talk. How FFT Works The FFT helps you see what kinds of signals are present in your system. Specifically, it breaks down your complicated signal into separate sine waves. Any signal at all can be thought of as the sum of different sine waves (the Fourier Transform). The oscilloscope's FFT, or Fast Fourier Transform, is just one method of performing this operation. FFT Applications Most oscilloscopes have a FFT built into their math system these days. In the oscilloscope featured in the video, you just press Math and then turn on the FFT option. Then you can set various properties of the analysis, like the frequency range you want to look at. In the video example, you can see that same series of frequency-domain spikes stretching out. This is kind of a pared-down version of what you'd see on a spectrum analyzer. If you wanted something more like a real spectrum analyzer, you could use a mixed domain oscilloscope with a dedicated RF channel. The mixed domain oscilloscope in the video shows a FFT of the signal from a completely separate input. The idea is that you use the regular analog channels to look at the various signals on your board, and use the RF channel to see what's actually coming out of your antenna port. For more FFT Information go to: www.tek.com/fft-basics Also, keep an eye out for the next video in this series, covering a FFT example where the FFT function is used to measure musical signals in front of a live audience.
Views: 488181 Tektronix
The Nervous System, Part 1: Crash Course A&P #8
 
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•••SUBBABLE MESSAGE••• TO: Kerry FROM: Cale I love you with all my ha-art. Deadset. *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content. *** Today Hank kicks off our look around MISSION CONTROL: your nervous system. -- Table of Contents: Sensory Input, Integration and Motor Output 1:36 Organization of Central and Peripheral Systems 2:16 Glial Cells 3:54 Role, Anatomy and Function of Neuron Types 5:23 Structure and Function of Neurons 6:20 -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 3757154 CrashCourse
T.V "no Signal" Troubleshooting.
 
02:46
When your tv says "no signal," but your receiver is on and plugged into your tv. If this video help please consider becoming a patreon. https://www.patreon.com/searchingforsignal Thank you.
Views: 153375 SearchingforSignalLLC
Using Analog Inputs and Outputs in LabVIEW FPGA
 
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Learn more at: http://bit.ly/ZJpt1B You can use I/O nodes in LabVIEW FPGA to generate analog signals and take analog measurements. Generate an analog voltage using a CompactRIO analog output module. Measure back the voltage using a CompactRIO analog input module.
Views: 55961 National Instruments
Shift Register Without a Microcontroller -  Falling Edge Input (Corrections. See Description)
 
01:24
*************UPDATE************************* The labeling of the circuit diagram and the technical description below is misleading. The inverter cannot overlap with the flash off capacitor. The inverter is just a buffer, it doesn't invert the value it's given, it only passes it along. It's still needed because the pull up resistor for the flash capacitor would lock the out clock signal high. Don't learn from the content below on this one. I was wrong. I explain better here https://www.youtube.com/watch?v=tHLV96fBERk. The only difference is that I use a touch sensor rather than what my right hand is doing. *********END OF UPDATE********************* The point of this revision is the make my input on time. Before I would input a value, and it wouldn't be output'ed until the clock cycle after. It functioned one value behind. This circuit is a lot like my last type except I added a flash off capacitor on the falling edge of the clock signal. Is the inverted signal of a flash on capacitor. It's always on but flashes off when the input signal is high. That creates a delay in the rising edge. __________ input signal ________| |_______ ________ _______________ flash off |_| The input signal is also inverted before the flash off capacitor so the signals look like this: __________ __________ Out Clock __| |_______| |________ ____________ _________________ ______ In Clock |_| |_| The values are backwards because the out clock goes high before the in clock, and the rising edge is when the value is shifted in. For some reason it works either way around. For that reason I kind of consider this circuit a hack. If I flip the wires to be right way around it also works, but the input clock isn't buffered by the transistor. So I can't help but input 3 or more values at a time when the clock signals aren't backwards. And it doesn't matter if the output clock gets 3 or more clock cycles because if there is no input to output it does nothing. Because I used falling edge detection, the data line is added when the orange signal goes low. This circuit is useful to me because I don't want to operate three input signals but that's also useful to microcontrollers. I can use this circuit to allow a microcontroller to only use up two of it's outputs to operate this shift register. If I was using a microcontroller I would probably have to change the capacitor to a lower value since microcontrollers go faster. They also send out clean signals so I could keep the inputs the right way around.
Views: 13 Aaron Z
Introduction to Operational Amplifier: Characteristics of Ideal Op-Amp
 
13:10
In this video, the basic introduction of the Operational Amplifier (Op-Amp) has been given and different characteristics of ideal and real Op-amp (General Purpose 741 Op-Amp) has been discussed. What is Operational Amplifier: Operational Amplifier is one kind of Very High Gain Differential Amplifier with a single output. Using this Op-Amp it is possible to perform different mathematic operations (by connecting few external resistors and capacitors) like addition, subtraction, integration, differentiation etc. And that is why it is known as Operational Amplifier. Opamp consist of two inputs : 1) Inverting Input 2) Non-Inverting Input The output of the Op-amp in open loop configuration is the product of open-loop gain and the difference between two inputs. As, the gain of the Op-amp is very high, so in open loop configuration, even a small input signal will saturate the op-amp output. And the saturation voltage depends on the biasing voltages. Characteristics of Ideal Op-amp: 1) Infinite Input Impedance 2) Zero Output Impedance 3) Infinite Voltage Gain 4) Infinite Bandwidth 5) Infinite Slew Rate 6) Infinite Common Mode Rejection Ratio (CMRR ) 7) Zero input offset voltage (Output is Zero when input is Zero) The timestamps for the different topics covered in the video is given below: 0:37 What is Operational Amplifier and Why it is known as Operational Amplifier? 1:17 Circuit Symbol of Op-Amp and Op-Amp in the open loop configuration 5:00 Voltage Transfer Curve of op-amp 7:24 Equivalent Circuit of the Op-amp 7:47 Ideal Op-amp characteristics 12:00 Characteristics or different parameters of General Purpose Op-Amp (741) This video will be helpful to all students of science and engineering in understanding the Operational Amplifier and its different Characteristics. #OperationalAmplifier #OpAmp #CharacterisitcsofIdealOpAmp Follow me on YouTube: https://www.youtube.com/allaboutelectronics Follow me on Facebook: https://www.facebook.com/ALLABOUTELECRONICS/ Follow me on Instagram: https://www.instagram.com/all_about.electronics/ Music Credit: http://www.bensound.com/
Views: 317678 ALL ABOUT ELECTRONICS
How to turn down your home WiFi's transmit power
 
08:05
Your average home WiFi router or access point often has a setting so that you can reduce its transmit power level. The typical range for 2.4GHz WiFi is 150ft (46m) indoors, and 300ft (92m) outdoors. For 5GHz Wifi, it's more like 50ft (15m) and 100ft (30m). The lower you set the power, the shorter the range - but the less you are blasted by the WiFi signals! There's no reason to leave the transmit power at maximum if you don't need the range. As an added bonus, lower range means increased security since it's less likely someone else will "see" your WiFi network. If you only have WiFi from your ISP-provided Magic Box, and your only option is to turn the WiFi on or off, don't fret! You can purchase a cheap WiFi router, connect it via ethernet cable to your ISP's box, turn off the WiFi on the box, and use the low-power WiFi from the new router. TP-Link Archer C2: https://amzn.to/2BldPoT TP-Link N450: https://amzn.to/2MgIRDm (cheaper) It's easier than it sounds! More techie tips: https://scottiestech.info
Views: 6276 ScottiesTech.Info

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