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| o scope for someone starting out 200-400$ |
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| Fungus:
--- Quote from: jonpaul on March 21, 2023, 07:26:23 pm ---I would avoid the Chinese digital scopes. A beginner can easily find a 2 ch 10..50 MHz vintage analog scope for $/€ 25..100. --- End quote --- Oh, don't be silly. --- Quote from: jonpaul on March 21, 2023, 07:26:23 pm ---We found a,Hameg HM103 in Paris at a flea market is €5, ans another Hameg, HM203 at a,street market forward €25 --- End quote --- Can they stop the signal and zoom in? How about some on-screen measurements, can they do that? Not even the frequency of the signal...?? How about serial decodes or FFT? How much space do they take up on the bench? How many years of life do you think they've still got in them? |
| mastershake:
i have personally multiple scopes some costing way more then these recc. remember this is for someone who wants to learn and end up doing some repair work for people as he does. i have been doing this for almost 30 years i just dont have to much exp with the very latest models and he asked me about them specifically and i had to say im not sure but i will ask. what i want for him is something to learn everything he needs to but also something he can in the future use as a bit more professional unit. eventually im sure he will upgrade as he can i did offer him one of my old ancient ones that still works fine but he wants to buy his own equipment and i respect that and admire that. its not all the time when you find someone who doesnt want handouts but wants to pave their own way. some of these look great for him the i personally do not have any exp with the gw instek ones either so im curious myself lol damn it now i may have to buy something as a new toy lol. |
| james_s:
--- Quote from: Fungus on March 22, 2023, 12:48:21 am ---Can they stop the signal and zoom in? How about some on-screen measurements, can they do that? Not even the frequency of the signal...?? How about serial decodes or FFT? How much space do they take up on the bench? How many years of life do you think they've still got in them? --- End quote --- Does it matter if it can do those things if they aren't features you need? People got by with analog scopes for many years and they can still do everything they ever could. If you need to measure the frequency you can use a frequency counter. If you need to decode serial you can use a logic analyzer. If you need FFT you can use a sound card or spectrum analyzer. A modern DSO is clearly superior today for almost everything but that doesn't mean an analog scope has no value. If you can find a good working analog scope for a low price then grab it, the best scope is whatever one you can get your hands on. If you're going to go out and buy something though the Rigol and Siglent DSOs offer an incredible amount of value for the money. If they weren't available I'd recommend an older analog scope but they are available and they're cheap enough that it's not worth messing with old stuff unless you want to mess with old stuff. |
| Fungus:
--- Quote from: james_s on March 22, 2023, 01:03:24 am ---People got by with analog scopes for many years and they can still do everything they ever could. --- End quote --- People got by with slide rules for 300 years before the first affordable calculator but slide rules vanished very soon afterwards. TLDR; A DSO can give you a lot more information a lot more quickly than a CRO. |
| james_s:
--- Quote from: Fungus on March 22, 2023, 01:46:44 am ---People got by with slide rules for 300 years before the first affordable calculator but slide rules vanished very soon afterwards. TLDR; A DSO can give you a lot more information a lot more quickly than a CRO. --- End quote --- And if calculators were still hundreds of dollars and slide rules were cheap, it would make sense for people on a budget to pick up slide rules. If you know how to use a CRO it can get you all the information you need, it's just not as straightfoward, I suspect you have never really used one beyond playing around. Even having a DSO, things like measuring frequency, decoding serial and viewing spectrum are better done with dedicated instruments. |
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