The ADC-212/50 takes samples in to a memory buffer. This buffer is 128k in size for each channel. The data is stored in this and downloaded when either the number of samples requested is reached or the buffer is full. Due ot this the ADC212/50 cannot sample continuously, since during the download period from ADC212/50 to PC it is unable to sample.
However, the ADC-212/50 will produce FFT traces in the spectrum analyser, part of the Picoscope software.
It can measure frequencies of 25 MHz bandwidth on both channels.