Products > Test Equipment
Oscilloscope Purchase Advice around 600AUD
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techboy:

--- Quote from: mwb1100 on October 24, 2023, 08:05:13 pm ---On a completely separate topic, I think that if the OP can hold out a few weeks until Black Friday season my guess is that there will be good promos on low-end scopes.  Not that I have any kind of inside info, I just guess that the Rigol DHO800 release might encourage some discounting to move 8-bit stock.

--- End quote ---

I was considering the same. There is no urge, I was just thinking to nicely surprise myself with a gift that I lured for about 10 years, but haven't had a dire need to use yet :D

I remember when I got my QianLi IR camera only 3 years ago it cost me over 700$, it has clunky Windows only Software, needs to be connected over LAN, I need to weirdly move boards underneath, instead the camera over the boards. Not to mention hammers system resources on my PC just by idling. I used it a couple times over the years and it saved me in many situations. But considering that now I can get Android-connected portable one for a quarter of that price kinda hurts.

Tech advancements keeps coming I assume, but cant justify catching up with the trend. SDS1104X-U might be a good choice considering its almost 200$ cheaper than Rigol, and couple years down the line, if I need something more advanced I can justify.

I am dealing with USBc problems on Macboooks and Laptops all day long. USBc on the rigol as power source puts me off, especially on a VESA mount, (as Dave mentioned) curving of the cable will snap it off right away.
tautech:

--- Quote from: bdunham7 on October 24, 2023, 08:19:20 pm ---IDK about the SDS1104X-U in that regard.

--- End quote ---
Like SDS1202X-E there is no additional optional functionality to hack, none, zip, nada.

When Siglent via Daves local dealer (Triotest) sent him a prerelease SDS1102X-E for review and he sniffed the boot logging and discovered a 200 MHz hack, Siglent responded with only releasing SDS1202X-E to the west.

AFAIK Dave now has the only SDS1102X-E in the west.  ;D
Fungus:

--- Quote from: 2N3055 on October 24, 2023, 06:44:22 pm ---
--- Quote from: Fungus on October 24, 2023, 05:53:18 pm ---
--- Quote from: tautech on October 24, 2023, 01:38:40 pm ---When they return for successive purchases highly satisfied with their last it speaks clearer than some laddie online that sells his 54Z for latest greatest tablet scope only to return to the same brand and bellow how good it is.

--- End quote ---

What are you accusing me of? NOT being blinkered by brand names? I'll take that as a compliment.  :-DD

PS: That speaks volumes about your world view.

--- End quote ---

Name calling to deflect what I really said, is not necessary.

--- End quote ---

Were you even mentioned in there???


--- Quote from: 2N3055 on October 24, 2023, 06:44:22 pm ---If DHO800 has 3 trigger modes more than SDS1104X-E  than is the fact. It also have 2 less serial protocol/decode. Also fact.

--- End quote ---

The DHO800 hacks are still being developed.

It's easy to make it think it's a DHO900 and enable those missing protocols if you need them. The jury is still out on whether they can be enabled on a device that still believes it's a DHO800.

eg. 50MPts memory isn't an official option for the 800 series but mine has it unlocked since a few hours ago. I also have double bandwidth (150MHz measured) over the standard DHO804.
2N3055:

--- Quote from: Fungus on October 25, 2023, 03:36:19 am ---
The DHO800 hacks are still being developed.

It's easy to make it think it's a DHO900 and enable those missing protocols if you need them. The jury is still out on whether they can be enabled on a device that still believes it's a DHO800.

eg. 50MPts memory isn't an official option for the 800 series but mine has it unlocked since a few hours ago. I also have double bandwidth (150MHz measured) over the standard DHO804.

--- End quote ---

Good info.
I'm not into hacking personally so I wouldn't know.

Just a note, all scopes have BW larger than specced.
Old DS1104Z had 130MHz BW, SDS1104X-E has some 140 MHz BW, SDS2104X+has some 170 MHz BW.
Specified BW is more like worst case scenario across all possible cases and a hefty security margin.
Just a note that BW estimation using fast edges on signal and measuring risetime is not accurate or reliable because of shape of AA filter response.
It has to be established by using accurate amplitude signal generator and establishing the -3 dB point.

With that said, too large a BW with insufficient sampling rate is also not good. Any device will be a compromise.
Fungus:

--- Quote from: Fungus on October 25, 2023, 03:36:19 am ---eg. 50MPts memory isn't an official option for the 800 series but mine has it unlocked since a few hours ago. I also have double bandwidth (150MHz measured) over the standard DHO804.

--- End quote ---

Update: Today it's 200MHz bandwidth on a DHO804.  :)
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