Fun facts: I received DSO2D10 with sticker for "DPO6102B" model on the box. Serial number on sticker is the same as in my system information for DSO2D10.
I waited almost 1 year to buy this model with latest improved PCB version, and they sent me v1.00 PCB with initial bugged FW from their warehouse.
I checked AWG: minimum step is about 2.5mV, "microvolts" fine adjust is fake.
I asked Hantek's Emergency Psychological Support.
They said 5% accuracy for DC offset is very good
. And their engineers are adjusting hard
to fix very important problem for one of the useful thing in this scope after 1 year: "GND coupling" offset.
For AC/DC coupling offset I calibrated scope to +80mV@1V/div at start up, and this drop to about 0 after 10-15 minutes warming up.
Please wait for the new firmware, be patience, and buy more Hantek. Yet more!