General > General Technical Chat
Review: Hantek DDS 3X25. Anyone own one?
Mechatrommer:
--- Quote from: zibadun on December 15, 2012, 03:30:42 pm ---Is it possible control the goltek via an API?
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no, goltek is a simple app its not designed to provide pipeline for other app. you can code your own by calling ds3x25 api. make your own profile, do some back arithmetic for flat output and call the ds3x25 api. but i believe you wont get nice transition between frequencies, if you can then let us know ;) i did a "quick slap" write up on how to get the flat output... http://www.soasystem.com/eng/goltek/flat.htm i'm not sure though if you can understand the broken english. and there's the my ds3x25 output profile in bitmapped format. fwiw.
zibadun:
--- Quote from: Mechatrommer on December 15, 2012, 04:46:44 pm ---
--- Quote from: zibadun on December 15, 2012, 03:30:42 pm ---Is it possible control the goltek via an API?
--- End quote ---
no, goltek is a simple app its not designed to provide pipeline for other app. you can code your own by calling ds3x25 api. make your own profile, do some back arithmetic for flat output and call the ds3x25 api. but i believe you wont get nice transition between frequencies, if you can then let us know ;) i did a "quick slap" write up on how to get the flat output... http://www.soasystem.com/eng/goltek/flat.htm i'm not sure though if you can understand the broken english. and there's the my ds3x25 output profile in bitmapped format. fwiw.
--- End quote ---
Yep, I've read your flatness page Mech. No problem with writing my own, all it takes it time (of which there is a slight shortage :). Don't really care about transitions between frequencies for now. But here is an idea for your GOLTEK - add a simple TCP server that will listen on a port and accept commands which are equivalent of key presses in the GUI and would call the same functions as the "buttons" in your generator. This would make your software easily controllable from the "outside" programs. Anyway now back to fighting with 3x25 API .. :)
torch:
--- Quote from: marmad on December 14, 2012, 05:49:40 pm ---
--- Quote from: T4P on December 14, 2012, 05:33:32 pm ---Of course, it's good as a 150$ AWG ;) No 150$ gen can come even close. in fact there isn't a 150$ AWG apart from hantek but hey.
Crap but it works for 150$ fantastic as a "First AWG" :P If one is quite broke ATM
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Absolutely! No disagreement at all. It's just that I (and Mecha and others here, of course) have devoted dozens of hours of time trying to 'iron out' the annoying kinks - and add missing functionality - which keep it from being great. Speaking only for myself, I need to consider investing my time elsewhere and upgrade my AWG ;) But it certainly got me through some work I had to do with an AWG in the meanwhile.
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As a dilettante just getting into this field, I have to thank you and Mecha for your efforts. I couldn't justify an expensive full-featured AWG, but I could afford the Hantek. In point of fact I'm still scratching the surface of what one can do with one of these but have found it to be an almost essential compliment to the oscilloscope in many cases. And the improvements you guys have achieved just add even more value. I can't understand why Hantek seems to have orphaned the DDS 3X25.
I think they dropped it just as it was at the cusp of greatness to rival the popularity of the Rigol 1052 with amateurs like me. All they really have to do is give talented people like you the source code and/or specs and they could be selling these like hotcakes. I point to the Linksys example: They wanted to keep their corporate secrets until they were forced to release the source code (because they borrowed from Linux). Once the firmware was open, fans took over writing customizable firmware and sales of the WRT54G took off, leading to a whole family of similar routers that are still highly sought. So Linksys was selling lots of product without the cost of developing firmware. Why can't Hantek understand the benefits of that sales model is beyond me.
marmad:
--- Quote from: torch on December 15, 2012, 09:46:23 pm ---I can't understand why Hantek seems to have orphaned the DDS 3X25.
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Well, as mentioned in the other thread I recently started, they are producing more of them - just putting them in a slicker-looking container - and asking a lot more money for them ($231 at AliExpress). So they are trying to cash in on the success of the DDS-3X25 - but without any real extra effort on their part.
Mechatrommer:
without any real extra effort on their part, without any real effort to OSHW it, nothing. i guess their business model (most low end brand chinese i guess) is... they build a product that caught their eye, produce and distribute it and dissapear, and then go to the next product that caught their eye and do again, hell with customers let them figure out themselves. the poorest model i can imagine as far as professionalism is concerned. what keep them going is that, nobody can beat their price and probably sales of only few percent from what they produced already give them some profit for their next project, thats their "magic". if you ebay, there still some d3x25 unit available. so you see, they dont really give a damn about these unsold products, they already on the "next phase" of their development.
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