Editing Bat detector (section)

==Sampling frequency for digital/TE detectors==
Research in 2010 observed that frequencies used by bats can be has high as 250&nbsp;kHz.<ref>{{cite journal | title = Breaking the trade-off: rainforest bats maximize bandwidth and repetition rate of echolocation calls as they approach prey | author = Daniela A. Schmieder | publisher = Max Planck Gesellschaft|display-authors=etal}}</ref>). The [[Nyquist–Shannon sampling theorem]] observes that the minimum sampling frequency required to record a signal successfully must be greater than twice the bandwidth of the signal. To record a bandwidth of 250&nbsp;kHz therefore requires a sampling frequency in excess of 500&nbsp;kHz. Modern Time-Expansion capable units typically sample at between 300&nbsp;kHz and 700&nbsp;kHz. In general, faster is better, though a higher sampling frequency does use more storage space.