as far as I managed to get to know current modifications DSO203 have two channels with sampling rate 36Msps(CH1)+36Msps(CH2), or 72MSps(if only CH1 is active, and CH2 is in “HIDE” mode). But I have read about oversampling mode when sampling rate is 72+72, or 144MSps for single channel.
So here is the question, How can I turn on the oversampling mode?
And one more question, I was trying to use my DSO to look at 12.5 MHz square wave signal, using both modes (with turned on and hidden CH2). And I didn’t manage to notice any difference in displayed pictures. The picture in both cases was not so good as I’d like it had been (it looks like sine, but definitely not a square wave as expected). Seems like hiding the second channel is not enough to switch the DSO into single channel mode to get a better performance… Does anybody know how to activate single channel mode with doubled sampling rate?
Tested DSO has following firmware and software versions: HW:2.60, SYS:1.40, APP:2.42.
DSO is calibrated, and adjusted with probes.