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Hantek HDG2002B AWG: 5Mhz or 100MHz? Let's see!

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FrankenPC:

--- Quote from: Control:Eng on May 19, 2014, 04:56:35 am ---Thanks for that info.

So you're planning to buy one of these in around three weeks?


A comparision would be great, wonder what Hantek changes right now.

--- End quote ---

I'm not sure at this point.  I would like to believe they are actually addressing signal integrity issues and not re-engineering the code to defeat hacking attempts.  But I don't know for sure and in the mean time I really need a bench generator.   :-//

idpromnut:

--- Quote from: FrankenPC on May 19, 2014, 06:07:15 am ---But I don't know for sure and in the mean time I really need a bench generator.   :-//

--- End quote ---

I had seen this on fleabay, if you really need a func gen it might be enough for you: http://www.ebay.com/itm/221440242609

idpromnut:

--- Quote from: _Sync_ on May 18, 2014, 09:30:46 am ---Yeah I also noticed the glitching with fast sines, I wonder what that is about...

Did you also look at the noise mode? From what I have measured it does not look that random at all...

--- End quote ---

I discovered the source of the glitches at higher frequencies: the external reference seems to be causing it, regardless of how clean or dirty the reference is. I had been using my Rb few standard, but reran a couple of the 90+ MHz tests with the internal reference and no more spurious glitches! Can someone confirm this behaviour with the external reference?

fremen67:

--- Quote from: idpromnut on May 19, 2014, 04:25:58 am ---What model is your MSO?

--- End quote ---
Hantek MSO 5062D hacked to 200Mhz but I only modified channel 1 frontend so it may be the reason.. but I think I already saw the sine amp problem before starting modifying it. So I may have another problem on my MSO :(

idpromnut:

--- Quote from: fremen67 on May 19, 2014, 11:40:51 am ---
--- Quote from: idpromnut on May 19, 2014, 04:25:58 am ---What model is your MSO?

--- End quote ---
Hantek MSO 5062D hacked to 200Mhz but I only modified channel 1 frontend so it may be the reason.. but I think I already saw the sine amp problem before starting modifying it. So I may have another problem on my MSO :(

--- End quote ---

Yeah, I was going to say that if you're seeing weirdness @ 30+ MHz, then it might be something else entirely, and not directly the mod on the frontend. You should be able to see reasonably non-attenuated signals up to at least 60MHz.

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