There spectrum range of the 4000 using our software is 20MHz, the ranges available in our software are as follows:
100Hz, 200Hz, 500Hz, 1kHz, 2kHz, 5kHz, 10kHz, 20kHz, 50kHz, 100kHz, 200kHz, 500kHz, 1MHz, 2MHz, 5MHz, 10MHz, 20MHz
80MS/s is as you pointed out the single shot sample rate, when you say repetitive do you mean ETS? If so then the answer is, there is no ETS for the 4000. Or do you mean streaming? The device has no real limit in terms of streaming on some computers you can get 10MS/s and above. Using our software there is a limit to the streaming mode up 1MS/s.
There is another mode which is called rapid block mode, in this mode the device will sample in single shot mode, however the time delay between the next sample is much smaller than normal, it reduces the gap from milliseconds to about 2.5 microseconds.
Using our latest software you can use XY mode.
Hope this helps.