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Rigol HDO1000 and HDO4000 12bit oscilloscopes launched in China

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NE666:

--- Quote from: Kosmic on November 23, 2023, 07:19:50 pm ---Are they still mentioning the 50\$\Omega\$ input on the front panel of the DHO1000 ? Or it was just on the promotional pictures and it's not printed on real units ?



--- End quote ---

Yes, it would seem so.  Mine has just been delivered from Amazon UK and it's a DHO (not HDO) and still carries the 50 ohm termination text.

Martin72:
LOL,
Now it´s back to 40% off again:
https://www.amazon.de/HDO1072-Digitaloszilloskop-EXT-Kanal-1-500-000-Touch-Display/dp/B0BJ31PHLN?ref_=ast_sto_dp&th=1

thm_w:

--- Quote from: ebastler on November 23, 2023, 04:59:59 pm ---That's why I said that it wouldn't be a catastrophe to make do without the internal termination up to 200 MHz. (But it would be nice not to have to search for the 50 Ohm pass-through terminator, and not to bump into it all the time when it is installed.)

Dave's teardown of the DHO1000 and 4000 suggested that they have the exact same frontend. But since the license protection of the 1000/4000 seems structured similar to the 800/900 series, all 4000-only features may be out of reach for hackers of the DHO1000. I don't think it is realistic to make the DHO1000 believe that it's a 4000; there's an ADC missing... So I am buying this assuming I will get a 200 MHz scope, not more.

--- End quote ---

Depending on your setup, a BNC T could work to avoid the stickout.
I'm 90% sure I'd blow up the 50R input at some point if it were internal. So easy to put 12V DC into the scope at the wrong time.

Martin72:
Regarding the 50 Ohm "issue", I have made an inquiry, let's see if they (Rigol.eu) can still remember me and give a correspondingly quick and adequate answer. ;)

ebastler:

--- Quote from: thm_w on November 23, 2023, 11:38:43 pm ---Depending on your setup, a BNC T could work to avoid the stickout.
I'm 90% sure I'd blow up the 50R input at some point if it were internal. So easy to put 12V DC into the scope at the wrong time.

--- End quote ---

I have sometimes used a BNC T + terminator in a pinch. But the termination/match is not as good, and they tend to get in the way of the knobs on most of the input jacks.

Where did Thorlabs find a 5 kOhm terminator for that photo?  ::)

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