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Best Buy Oscilloscope


But when it comes to choosing the best oscilloscope, how do you know which oscilloscope is right for your application? There are 10 primary factors to consider when you buy an oscilloscope. For a quick overview of the top factors, watch the short video below. Otherwise, keep reading for the full details on how to choose an oscilloscope for your application.




best buy oscilloscope


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For example, a 100 MHz oscilloscope is usually guaranteed to have less than 30% attenuation at 100 MHz. To ensure better than 2% amplitude accuracy, inputs should be lower than 20 MHz. For digital signals, measuring rise and fall time is key. Bandwidth, along with sample rate, determines the smallest rise-time that an oscilloscope can measure.


The probe and oscilloscope form a measurement system that has an overall bandwidth. Using a low-bandwidth probe will lower the overall bandwidth, so be sure to use probes that are matched to the scope.


Rise time describes the useful frequency range of an oscilloscope, and this is a critical measurement in the digital world. Rise time is often considered when measuring digital signals like pulses and steps.


In order to accurately capture the details of rapid transitions, an oscilloscope must have sufficient rise time. Fast rise time is also needed for accurate time measurements. To calculate the oscilloscope rise time required for your signal type, use this equation:


High-voltage differential probes: Differential probes allow a ground-referenced oscilloscope to take safe, accurate floating and differential measurements. Every lab should have at least one.


Oscilloscopes with high waveform capture rates provide significantly more visual insight into signal behavior, and dramatically increase the probability that the oscilloscope will quickly capture transient anomalies such as jitter, runt pulses, glitches and transition errors.


Digital storage oscilloscopes (DSO) employ a serial processing architecture to capture from 10 to 5,000 wfms/s. Some DSOs provide a special mode that bursts multiple captures into long memory, temporarily delivering higher waveform capture rates followed by long processing dead times that reduce the probability of capturing rare, intermittent events.


Most digital phosphor oscilloscopes (DPO) employ a parallel processing architecture to deliver vastly greater waveform capture rates. Some DPOs can acquire millions of waveforms in just seconds, significantly increasing the probability of capturing intermittent and elusive events and allowing you to see the problems in your signal more quickly.


Need help choosing an oscilloscope? Download our oscilloscope selector guide or contact the experts at Tektronix to request a demo. If you already have a sense of which oscilloscope to buy, shop Tektronix oscilloscopes today.


An oscilloscope, formerly known as an oscillograph, graphically displays electrical signals and showshow they change over time. Learn more about how an oscilloscopeworks, what they're used for andthe types of oscilloscopes.