Electronics > Beginners
Which Oscilloscope should I purchase for my requirements?
renegadeandy:
Hi all!
I am working on the OSSC project - it's an open source scan converter, it takes in "old analog signals" like RGB, VGA, Component, and Composite, and outputs HDMI.
A lot of the original circuitry has been handled by the project's experts, however I want to understand at a more fundamental level what is going on within my setup. I.e I want to see the RGB signal coming in, understand it's form, and then trace how that gets digitized, before it is passed onto the Cyclone IV (FPGA) for processing.
I don't particularly want to spend a huge amount of money, < $400 if possible. It needs to be optimised for 'video signals' if that is such a component of Oscilloscopes, and ideally offer me at least 2 channels, at 100mhz which appears to be fairly standard these days. There are likely other qualities I should be looking for given my setup and specific use case, and I would like to pull from your experience and preferences within the Oscilloscope domain to see what you use, and why!
I really appreciate all patience, and guidance. (I have watched a lot of youtubes covering comparisons between oscilloscopes, and the importance of purchasing a 'proper analog oscilloscope' by our very own EEVBlog guru himself! But before I splash out, I want to see what this community would recommend, for a new comer , who has high aspirations within the electronics domain(I am coming from a highly experienced software background -- and have designed a couple of simple OSHPark boards which have worked etc, but want and need to take this next step to really understand what my signals are saying when they travel down my traces :)
FotatoPotato:
I would go for the Rigol DS1054z and mod it to unlock all of the options, which is super easy and quick to do. I have one and I love it and I think that would work best for you and it is right in your price range.
https://www.amazon.com/Rigol-DS1054Z-Digital-Oscilloscopes-Bandwidth/dp/B012938E76/ref=sr_1_3?ie=UTF8&qid=1544752046&sr=8-3&keywords=rigol+ds1054z
tsman:
A Rigol DS1054Z with the Riglol hack to enable 100MHz and all the options.
A GW Instek GDS-1054B temporarily downgraded to 1.18 and license key generator to enable 100MHz and all the options. It is only 1Gsps sampling in total and 250Msps if you enable all channels so 300MHz is going to be dubious...
Other option is a Siglent SDS1104X-E. I think you can hack it for more options as well but you'll have to dig around in the big thread for how.
GigaJoe:
i have 1054 and siglent 1202; I like siglent much better, but it has a bit more glitches (im tolerant to), and not sure about decoding
rhb:
Take a look at the Siglent SDS1202X-E. It's currently $359 and purports to do video decoding. I have a Rigol DS1102E and Instek MSO2204EA. I also had an MSOX3104T briefly and an RTM3104. The sad fact is the SW quality even from the A list OEMs is not great.
Siglent has a 30 day return policy and most reputable T&M sellers also offer that as well as offering to give you a hands on demo.
Set up to do some tests in a few days and ask for demos.
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