General source / DS1102E/100M oscilloscope price Zhengzhou Emi instrument factory direct 0371-66227105 55676313 66959363 www.5117hm.com 
 Digital oscilloscope for data acquisition, A / D conversion, software programming techniques created a series of high-performance oscilloscope. Digital oscilloscopes typically support multi-level menu, the user can provide multiple options, a variety of analysis functions. Some oscilloscopes can provide storage, preservation and realization of waveform processing. Currently rely mainly on the U.S. high-end digital oscilloscope technology, within the bandwidth of the 300MHz oscilloscope, the oscilloscope domestic brands already on the performance and foreign brand to compete, and has obvious cost advantages. 
 Distinguish between analog and digital real-time bandwidth, the bandwidth 
 Distinguish between analog and digital real-time bandwidth Bandwidth Bandwidth is the most important indicator of the oscilloscope. Analog oscilloscope bandwidth is a fixed value, while the bandwidth of a digital oscilloscope analog bandwidth and digital real-time bandwidth two. Digital oscilloscope for repetitive signals using sequential sampling or random sampling techniques can achieve a maximum bandwidth of the oscilloscope digital real-time bandwidth, digital real-time bandwidth and the highest number of frequency and waveform reconstruction technique factor K is related to (digital real-time bandwidth = the maximum number of rate / K) generally not given directly as an indicator. From two bandwidth definition can be seen, repeat cycle analog bandwidth is only suitable for the measurement signal, and digital is also suitable for repeated real-time bandwidth signals and a single signal measurement. Oscilloscope manufacturers claim that the number of megabytes of bandwidth to achieve, actually refers to the analog bandwidth, digital real-time bandwidth is lower than this value. For example TEK's TES520B bandwidth of 500MHz, actually refers to the analog bandwidth of 500MHz, and can only reach the maximum number of real-time bandwidth of 400MHz analog bandwidth far below. Therefore, in measuring a single signal, be sure to refer to the number of real-time bandwidth digital oscilloscope, or give unexpected measurement error.