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Hantek HDG2002B AWG: 5Mhz or 100MHz? Let's see!
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fremen67:

--- Quote from: idpromnut on May 18, 2014, 04:44:30 am ---I think you may have been running into a limitation of your scope for at least the sine wave past 30MHz or so.

--- End quote ---
Possible but I hope not  :(
I have a MSO5062B hacked to 200Mhz and made Tinhead's frontend hack on channel 1... and the results are the same on both channels.
@Tinhead: what do you think?

On the other hand, if it doesn't come from my MSO then it would be very interresting to compare our boards versions.
Here is a link to 2 high res pictures of my board. Could be interesting to compare with yours...
http://dl.free.fr/nEDtUM0lM

Your pictures are nice. I like your DSO interface :) What model do you have?
Have a look at the 2V Pulse @ 20Mhz and compare to the figures of yours... impressive  ;)

You can increase voltage accuracy (1mv in DC Arb function) by calibrating the HDG but don't do it without backing up before the htg.cal file in /etc and when following the calibration procedure,  stop, save and exit the procedure after entering the 12th value. If something goes wrong, just copy back your old htg.cal file.
idpromnut:
@fremen67: Thanks, it's a "upgraded" DS2072A  8)

I will have a look at the hi-res board pics you posted and get back to you. I would be a little surprised that Hantek rolled an new revision of the main board that quickly (unless you bought your unit several months ago).
tinhead:

--- Quote from: fremen67 on May 18, 2014, 11:31:11 am ---
--- Quote from: idpromnut on May 18, 2014, 04:44:30 am ---I think you may have been running into a limitation of your scope for at least the sine wave past 30MHz or so.

--- End quote ---
Possible but I hope not  :(
I have a MSO5062B hacked to 200Mhz and made Tinhead's frontend hack on channel 1... and the results are the same on both channels.
@Tinhead: what do you think?

--- End quote ---

something is wrong on your pictures, and it is probably MSO. It is always good idea to hack/change both channels, with only one you running into calibration trap.
fremen67:

--- Quote from: tinhead on May 18, 2014, 05:55:20 pm ---something is wrong on your pictures, and it is probably MSO. It is always good idea to hack/change both channels, with only one you running into calibration trap.

--- End quote ---
OK I will finish with the other channel but I already noticed it when the HDG arrived. At that time both channels were still from factory. Bad sign for my MSO  :-\
tinhead:
btw, the SCPI implementation is using Agilent VID/PID, so one can use Agilent I/O Suite drivers instead of Hantek driver.
Sure, the Hantek app will then not work anymore (oh well, it is not working for me), but instead of that one can use any VISA/SCPI application. Interessting is the name displayed, htg1102a (instead of HTG2xxxx what so ever). Attached picture is made of HTG2xxx dump running on S3C2416 dev board (i wish i could play with real HTG, but for now it is enought to do things on dev board).
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