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How can you verify the bandwidth of your oscilloscope probe? Read more...
Latest Oscilloscope News |
MIPI M-PHY Automated Physical Layer Compliance Test
16 March 2015 – Teledyne LeCroy announces an automated physical layer transmitter compliance test capability for the MIPI M-PHY standard. The new compliance test software, QPHY-MIPI-MPHY can measure a large number of cycles in a short period of time. Testing can be done on HS-MODE, PWM-MODE and SYS-MODE signals at all currently specified GEARs. A new active termination adaptor specifically designed for M-PHY testing ensures connection between the device under test and the oscilloscope is made in a simple, cost-effective, high fidelity manner.
OS X and Linux Software for USB Oscilloscopes
12 March 2015 - Pico Technology released OS X and Linux beta versions of PicoScope software containing all the essential features of PicoScope for Windows. Pico is working on adding the more advanced features. PicoScope 6 and device drivers for Linux are now distributed via online repositories.
New Option for simultaneous Time Domain and Spectrum Analysis
05 March 2015 -- Rohde & Schwarz has added the R&S RTM-K18 spectrum analysis and spectrogram option to its R&S RTM oscilloscope family, making the R&S RTM the only oscilloscope in its class that can analyze the time domain while simultaneously analyzing the spectrum, logic and serial protocol. Interactions such as those that occur in electronic devices with RF components are quickly analyzed in a single measurement. Time and spectrum analyses can be configured completely independently of one another due to separate implementation of the signal paths.
Oscilloscope Probing Solutions for High-Speed Bus Testing
03 March 2015 – Keysight Technologies introduced the bandwidth enhanced N7000A InfiniiMax III+ differential probes for general-purpose, high-speed differential bus probing. The company also introduced an active termination adapter that provides ultra-low noise voltage termination to a non-ground signal, and QuickTip accessories for InfiniiMax I/II probes. These probing solutions complement the new Infiniium V-Series oscilloscopes.
Oscilloscope Current Probe for up to 50 A and with 100 MHz Bandwidth
02 March 2015 -- Rohde & Schwarz enhances its oscilloscope accessories portfolio with the new R&S RT-ZC20B current probe. At 100 MHz bandwidth, the can measure AC and DC of a maximum 30 A (RMS)/50 A (peak) current with a resolution of 10 mA and low noise. R&S RTO, R&S RTE and R&S RTM oscilloscopes can automatically detect up to four current probes connected in parallel and will also automatically adjust the vertical scaling and zeroing settings. The degaussing function is activated directly on the instrument.
More Memory for Yokogawa MSO Oscilloscopes
27 February 2015 - The new /M3 option of Yokogawa adds 250MPoints memory to DLM2000 and DLM4000 mixed-signal oscilloscopes. Larger memories offer two advantages - first more memory allows a longer acquisition time and second for the same acquisition time, using a larger memory can result in a higher sample rate - which actually means that the effective bandwidth of the measurement is increased.
Rohde & Schwarz expands its Family of R&S RTE Oscilloscopes
26 February 2015 -- Rohde & Schwarz introduced new two- and four-channel models with 1.5 GHz and 2 GHz bandwidth for its family of R&S RTE oscilloscopes. The bandwidth of this family is ranging now from 200 MHz to 2 GHz. The R&S RTE series features a 5 Gsample/s sampling rate per channel and up to 200 Msample memory. An extremely low-noise frontend, in conjunction with a sensitivity of up to 500 µV/div and a vertical resolution of 16 bit in high definition mode, ensures highly accurate measurement results. The digital trigger system operating in the signal path allows triggering in realtime on even the smallest signal details.
Oscilloscope Basics |
A Comparison between Oscilloscopes and Spectrum Analyzers
Whether it is for a land survey searching for minerals on Earth, or for a space exploration in search of alien life forms, the analysis of any signal boils down to looking at its time and frequency information. While an oscilloscope displays a signal with respect to time, a spectrum analyzer shows it with respect to frequency. Both of these tools are very important in any signal analysis application. This article explains the difference between oscilloscope and spectrum analyzer using examples.
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Oscilloscope Background |
A simple method to verify the bandwidth of your probe
In oscilloscopes or oscilloscope probes, bandwidth is a measure of the width of a range of frequencies measured in Hertz. Specifically, bandwidth is specified as the frequency at which a sinusoidal input signal is attenuated to 70.7 percent of its original amplitude, also known as the -3 dB point. Most oscilloscope companies design the scope/probe response to be as flat as possible throughout its specified frequency range, and most customers simply rely on the specified bandwidth of the oscilloscope or oscilloscope probes, wondering if they are indeed getting the bandwidth performance at the probe tip. Now you can use these step-by-step instructions to simply measure and verify the bandwidth of your probe with an oscilloscope you may already have.
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