Hello.
I am going to buy a VDS1022i for measuring noise several USB Chargers(hobby).
I would like to receive your help and i have some questions.
1. What is the latest hardware version of the VDS1022i?
(Eg, Rev 1.5 or Rev 1.6 or Rev 1.7, ETc)
2. Which of the P2060 or P7060 probes are included in the VDS1022i?
(Some say P2060, others say P7060(with photo))
3. Which is the better probe?
(P2060 is up to 200 voltage at x1, P7060 is 300 up to voltage at x1. it seem that another spec are same.)
I would appreciate a reply.
Hi,
I don't know if there is a record of current H/W revision. Mine (that I did the original teardown on) was an early one, I've seen later ones with copper foil wrapped over the edge of the PCB between the upper and lower screening cans as a grounding contact for the case. The latest revision that I've seen (from the look of it) is shown in this recent video...
The only functional difference that I can see (apart from the bare tinned tracks down the edges for case grounding) is that the Video trigger chip doesn't appear to be fitted. I suspect that nobody is particularly interested in looking at analogue video in fine detail these days.
I don't know what PCB versions various ebay sellers stock these days, possibly random, but it doesn't make a functional difference anyway, they all work well.
With regard to scope probes, mine came with P2060 60MHz switchable x1/x10 probes, so does the one shown in the (recent) video.
I'm not sure where you have seen a P7060 photo and I don't know what the practical difference is - You NEVER use probes in the x1 position at those sort of voltages, that would be silly and dangerous for the scope, always use X10.
I note that you mentioned measuring noise of several USB chargers, I'm assuming (hoping) that you mean scoping the outputs. As has been covered many times before, this scope (and most others) isn't suitable for measuring mains. You would need to add a high voltage differential probe for that.
I hope this helps.