Products > Test Equipment
Has anyone hacked or cracked OWON XDS series?
<< < (3/6) > >>
seronday:
Atttached are screen prints of a 2 Tone Test with a 12 bit OWON XDS2102A and Siglent SDS2000X plus.

The signal source is a Rigol DG4062 generator with Ch1 set to 1.0Mhz and Ch2 set to 1.01Mhz and then combined via 1K resistors to the 1M ohm Ch1 input on the DSO. 

The Owon XDS2102A is the lower cost version of the XDS3000A series. ( the main circuit board in the XDS2102A is marked as XDS3000 ).

Regards.
mawyatt:

If you don't mind could you redo this test with a ~100 ohm shunt resistor to ground at the sum of the 2 1K resistors (this helps isolate the two signal sources better). Since the OWON FFT doesn't have the resolution of the Siglent FFT, increase the 2nd frequency for a 20KHz offset (10.02MHz) which may show the 3rd order products (F1 -deltaF, F2+deltaF, where deltaF = F2-F1) a little better on the OWON.

BTW what's the difference between the lower cost XDS2102A and the XDS3000A?

Thanks so much for the test, much appreciated :-+

Best,

maxwell3e10:
This calls for a Wavetek 195 generator which has 4 channels that can be all summed internally. Incidentally, it was manufactured by Aim/TTI  and still sold until recently as Aim/TTi TGA1244 and Fluke 284.

Here is a capture of 0.9 MHz, 0.99 MHz, 1.01 MHz and 1.1 MHz sine waves, each 2Vpp. The vertical scale is 10 dB/div.  One can get SFDR of 60 dB, its probably better than that since little peaks are just random. If output of the function generator is turned off the noise level goes down another 5dB.
seronday:
@mawyatt
       Two tone test repeated as requested with 100 ohm termination and 20Khz separation.
Have also applied some averaging to find the IMD signals buried in the noise.

I have not used an XDS3000A DSO, but from reading the spec sheets for both the XDS2102A and XDS3000A series, it seems that the main difference being the XDS2102A is offered with none of the options.
The specifications for both are attached.
seronday:
Picture of XDS2102A main board.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod