| 1. | After each trigger event this sampling circuit has to be set back before receiving the next pulse.
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| 2. | :When undersampling a real-world signal, the sampling circuit must be fast enough to capture the highest signal frequency of interest.
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| 3. | :As I recall there's a nice discussion of this topic, with some sample circuits, in talk ) 01 : 55, 23 February 2007 ( UTC)
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| 4. | This means that in the FM radio example above, the sampling circuit must be able to capture a signal with a frequency of 108 MHz, not 43.2 MHz.
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