How fast should the sampling be?
As you would expect, the maximum sampling rate can never be too fast. The Ant8 and Ant16 instruments sample at up to 500MHz, which gives a timing resolution down to 2ns. The Ant18e samples at up to 1GHz (1ns). This doesn’t mean that the instruments can sample 500MHz or 1GHz signals, but it does mean that they can accurately sample incoming signals which are over 100MHz. Of course, the sample buffer fills up quite quickly at these speeds, so for slower signals the sampling speed can be stepped down in stages to a minimum of 100Hz, which gives a timing resolution of 10ms. When sampling fast signals, you need short probe leads to give an accurate result.
As you would expect, the maximum sampling rate can never be too fast. The X34 samples at up to 500MHz, which gives a timing resolution down to 2ns. This doesn’t mean that the X34 can sample 500MHz, but it does mean accurately sampling of incoming signals which are over 100MHz. Of course, the sample buffer fills up quite quickly at these speeds, so for slower signals the sampling speed can be stepped down in stages to a minimum of 100Hz, which gives a timing resolution of 10ms. When sampling fast signals, you need short probe leads to give an accurate result.
