Title: DSO3000A problem [Print this page] Author: leisos Time: 2021-2-5 15:21 Title: DSO3000A problem Hello all,
We acquire a known pulse from a pulser (inverted (negative) like gaussian, FWHF=5.5 ns, peak= -700 mV) at channel 1 with all other channels deactivated. Everything is ok.
Then we activate the other channels (2,3 and 4) which are not connected to any source and we see that the acquired pulse is changing height on event by event basis, ie (-720, -700, -710, -690,..) mV.
When only channel1 (signal) and channel2 are active the pulse is stable on event by event basis, but with height -720mV instead of -700mV. When more channels are active the height and the acquired pulse is not stable.
Any comments?
Welcome to Electronic Engineer Discuss (https://www.eediscuss.com/)