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Living overseas, want to buy first scope, limited options, Rigol 1102z-e?
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phamthai2503:

--- Quote from: Fungus on November 18, 2021, 06:32:11 am ---The Rigol DS1102Z-E is a Rigol DS1054Z but only two channels and 100MHz. Anything you read about the DS1054Z is applicable. The 'E' is just external trigger input.

The Rigol DS1202Z-E is exactly the same but 200Mhz. 200MHz is nicer but you probably don't need it.

Four channels is a big advantage for "Arduino". You can still do it with two channels but it needs a lot more swapping of probes.

If you're doing "Radio" then a signal generator is essential.

--- End quote ---

Hello, I currently want to buy an oscilloscope to serve my laptop repair needs. There is 1 store in my country selling Rigol DS1102Z-E (100% New) $280  , and there are 2 more options of Second-hand goods (95%) Rigol DS1102E (100Mhz) $200  + Rigol DS1152E (150Mhz) $208
Which should I buy? please advise me! Thank you
rsjsouza:
The DS1202Z-E (sorry, I meant DS1102Z-E as Fungus below) is the newest and most advanced of the set. It is worth the extra money.
Fungus:

--- Quote from: phamthai2503 on November 21, 2022, 03:41:51 am ---Hello, I currently want to buy an oscilloscope to serve my laptop repair needs. There is 1 store in my country selling Rigol DS1102Z-E (100% New) $280  , and there are 2 more options of Second-hand goods (95%) Rigol DS1102E (100Mhz) $200  + Rigol DS1152E (150Mhz) $208
Which should I buy? please advise me! Thank you

--- End quote ---

The Rigol DS1102Z-E is much, much more advanced than the others. Get that one.
Alibani:
Hey guys,
I wish this topic is still alive . Otherwise, please guide me where should I ask my question or start a new topic for my question.
I have Avery limit budget , and I am a rookie in electronics , too.
I am going to buy an entry level oscilloscope. Here I have two choices : Rigol 1102Z-E and Uni-T 1202 . What is your opinion and recommendation?
Phil1977:
Most statements in this thread are still completely valid.

The only thing that changed is that today you also get the Rigol DH804 or Siglent SDS 804x for less than $500. They have 12Bit, touchscreen and much more CPU power. If you need to pay more than $400 for a Rigol 1054z it is clearly recommended to go get that little bit of money more to go for the modern types.

If you can get a 1054 or 1102 for little money, then take it. They´re solid workhorses.

I´d try to avoid the even cheaper instruments like OWON SDS1202. They´re better than nothing, but they´re not much better than e.g. the FNIRSI 1013 class.

From my point of view the biggest difference is the "Digital Phosphor"-technology. Most scopes that are cheaper than the Rigol 1102 do not have this technology - that means they just display one sampled waveform at a time, and that means at a display refresh rate of e.g. 60Hz with 1us/div they only display 600us of signal per second of display. This equals to 99.94% of dead time.

Scopes with "Digital phosphor" sample e.g. 1000 waveforms and display them together on the screen - a little similar to what an electron beam did on analogue scopes, hence the name. That means, you can see 1000 times more of the signal, chances of finding glitches and other non-repetitive are are much better. It´s much more fun to learn electronics with such a device than with the single-waveform DSOs.

Please correct me if someone knows a decent "digital phosphor" scope in the lower price range as a benchtop version.
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