As being the frequency increases, not merely the roerties with the oscilloscoe but will also the traits of the robe turn into crucial. assive robes are generally minimal to 600MHz, and that means you have to have a robe that will get comlete advantage of one's oscilloscoe. The rocedure bandwidth, or the bandwidth of the oscilloscoe / robe combination, is limited because of the smaller sized with the two bandwidths. Such as, a 1GHz oscilloscoe couled with a 500MHz assive robe offers a rogram bandwidth of 500MHz. If you only receive a 500MHz bandwidth to your robe, urchasing a 1GHz oscilloscoe is actually a waste.Connecting the robe can make it asect in the circuit below check. The idea from the robe is basically a brief transmission line.
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This transmission line is an LC resonant circuit, that is ushed at 1/4 wavelength as well as the LC resonant circuit's imedance is driven small (near zero) to load the unit under examination. The gradual rise time and signal ringing allow it to be simle to find out the load about the LC resonant circuit.By combining an lively robe with a "daming" resistor or accent for the robe ti to attenuate signal loading and resulting sign distortion, the "daming" accessory allows lessen the imedance of your LC resonant circuit. It does not go much too small and avoids ringing and sign distortion brought on by loading the signal.Additionally, the frequency resonse of the robe is flat above the robe's bandwidth when using the ?°daming?± accent. A flat resonse will kee away from distortion in the signal more than the comlete robe bandwidth.
Subsequent, when robing suerior velocity alerts, use the robe head accent to see should the robe can offer the comlete bandwidth. Make use of a robe bandwidth-otimized robe that has a managed transmission line concerning the robe amlifier lus the robe ti to make use of only one amlifier for browsing, sockets, soldering, SMA, and so on. You could join a number of differential / single-ended robe heads to make sure whole technique bandwidth. Furthermore, the robe amlifier is actually divided in the robe suggestion via the handle transmission line, earning it uncomlicated to succeed in tight robing saces.It can be vital that you know the robe bandwidth technical secs when making use of many robe heads and equiment. Extras can imair robe efficiency. Even a broadband lively robe that fees many hundreds of thousands of dollars may have imortant general erformance degradation, according to the robing configuration.
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