| Products > Test Equipment |
| Hantek HDG2002B AWG: 5Mhz or 100MHz? Let's see! |
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| fremen67:
--- Quote from: flatlander on October 28, 2014, 05:47:05 am ---@ fremen67: nanddump uploaded to http://www.filedropper.com/hdg2002b10021409260 --- End quote --- --- End quote --- Got it thanks! |
| andrija:
I received my 20MHz version - was only 20 bucks extra, just in case I don't feel like hacking the software. I am planning to add LAN port and maybe the counter and have already ordered parts. The unit did not work out of the box though! Fan turns on but not the screen. I opened it up and fiddled with wiring and then it started working, only to stop when I put the case back on. Finally I left it without case in order to play with it. This thing feels and looks like a toy. The quality of the plastic is way below my Rigol stuff and the metal chassis inside is like that Siglent, not quite as much rust but it's really nasty and dirty and full of smudges. I was expecting that, though, having seen pictures here. The user interface is, however, quite nice and intuitive, at least for basic waveforms. The frequency of the oscillator was 1Hz off at 10MHz and kept stable, if I was to trust my HP counter which isn't calibrated. It also stayed stable over time. Using external 10MHz input did not make any difference in the precision of the output waveform frequency at 1kHz. What I was impressed with is the quality of the sine wave - I measured THD of -85.3dB on channel 1 and 2dB worse on channel 2 with my Keithley 2015THD, with 10 harmonics. That is a spectacular result for something like this, isn't it? I'd say this thing is a better option than any of those simple classic function generators. User interface is nice and performance seems good. It seems upgrading from 20 to 100MHz would not get me much in practice based on what people are saying about the drop in signal quality and limitations of the non-sine functions which in most cases are already reached in the 20Mhz "model". Not sure I'd bother to upgrade bandwidth but I will mess with LAN for sure. |
| Cyber7:
@andrija: Keep in mind that unless you plan on tweaking the software, of writing PC software for the debug UDP port, there's isn't much to do with the LAN port at the moment. If you would like I can post you a DM9000A + the MDIX magnetics for a few $ as I have a couple of spare sets. It would save you some time from shipping halfway around the world. PM me if interested. |
| andrija:
Oh so the LAN port does not actually do anything? I thought you could control instrument through it. After all there's network setup in the menu and everything. I already wrote some code to control Rigol ocilloscope and power supply without need for any drivers so I figured I'll sniff network packets on this toy as well. Ah well, I don't have any other function gen (other than sound card and the sine gen up to 20kHz in Keithley) and it controls well through GUI so it's ok. Thanks very much for the offer, however I already ordered magnetics and chips from China 2 weeks ago (I read this thread, was in need of a gen, thought "awesome, I can hack" and ordered hacking parts before even making decision to buy the Hantek itself), just need some lan ports and capacitors and I'll get that from Mouser. |
| Cyber7:
Rigol Ultravision scope support VXI out of the box; Agilent IO picks it up quite nicely and you can control it very well via SCPI commands tcip/visa. Check RUU here: https://www.eevblog.com/forum/projects/software-tips-and-tricks-for-rigol-ds200040006000-ultravision-dsos/ There's a network setup menu...and that is pretty much everything :-\. While the HDG2002x supports a number of SCPI commands over USB, Hantek has been dragging their feet on supporting VXI on their their equipment. |
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