Not sure if this is more a software or hardware question.

PicoSocope 4425 and PicoScop6 6 Automotive Beta 6.13

Trying to get a better understanding of sample rates and limitations etc, I drew up a table of total waveform time (time per division x10) from 50ns to 50,000s and noted down the maximum possible number of samples for 1, 2, 3 and 4 channels, as indicated in the Properties column. Also included was the fastest possible sample rate, sample interval, and sample interval as a % of the waveform.

The conclusion I came to is that, with a waveform total time of between

1. 50ns to 200ms, the maximum possible sample rate is applied (400 MS/s on a single channel). As a result, the sample interval as a percentage of the waveform gets bigger as the timebase gets faster (so at 5 ns/div the sample interval would be 50% of a division with a single channel and 100% with 2 channels, that is 2 samples/div on one channel and one sample/div on 2, 3 or 4 channels)).

2. 500ms to 50,000s, the sample interval as a percantage of the waveform length is fairly constant (~0.00001% of a division), with the sample rate increasing accordingly as the timebase gets faster, until the the limit of 400 MS/s is reached (single channel at 20ms/div or 200ms total waveform time).

The maximum number of samples I see is 100M (single channel, 500ms to 50,000s total waveform time). However, the maximum possible number of channels indicated in PicoScope 6 Automotive software is 2GS - yes, it does say it will try to capture that many samples and the actual number might be less - but I see a maximum possible number of samples that is 20 times less that the maximum indicated by the software. So under what conditions, then, might it be possible to capture beyond 100M samples and up to 2G samples?

Any other thoughts/observations would be much appreciated.

Martin