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Title: Hantek 6000 DDS Error (Software) [Print this page]

Author: Codebest Time: 2017-12-14 09:55
Title: Hantek 6000 DDS Error (Software)
Has anyone seen this issue before with ver 2.1.34 ? Version 2.1.31 doesn't have the same issue. FFT doesn't work correctly on ver 2.1.31 so I've resorted to using two versions. I've tried uninstalling everything, reinstalling, changed folder permissions, etc. The problem occurs when the DDS is turned on and each time after any action, so clicking on just about anything on the DDS tab throws this error.

Author: amy Time: 2017-12-15 10:07

Sir, about this problem,please give me a short video how to occur to study. Thanks.

Author: Codebest Time: 2017-12-15 13:07
Please see this link to download a movie file showing the issue. Let me know if your unable to view this for some reason.

Thanks, Jeff

DDS Error Movie

Author: amy Time: 2017-12-15 16:58

Codebest replied at 2017-12-15 13:07
Please see this link to download a movie file showing the issue. Let me know if your unable to vie ...

Sorry, I can't open the video.

Author: Codebest Time: 2017-12-15 20:59
Ok, I'll create a video in a different format.

Author: Codebest Time: 2017-12-15 22:25
Give this video a try, it's in AVI format.

DDS Error AVI

Author: Codebest Time: 2017-12-19 11:57
So any ideas on this problem ? Version 2.1.31 doesn't have the issue, it's only the latest 2.1.34 that does.

Author: amy Time: 2017-12-20 08:57

Codebest replied at 2017-12-19 11:57
So any ideas on this problem ? Version 2.1.31 doesn't have the issue, it's only the latest 2.1 ...

Sir, please send a message to mey email caiyijun@hantek.com

Author: Codebest Time: 2017-12-20 11:57
Thanks for that.

I found another issue with the DDS.

If you turn on the DDS enter a frequency over 200 Khz and click Arb you get the correct signal. If you then click Sine you'll get a sine-wave that is the frequency you set times itself divided by 100. So if you set 300 khz , click Arb you will get a 300 khz signal, if you then click on Sine you get a 900 khz signal (300 x (300/100)) So 300 x 3. If you set 500 Khz click Arb and then click sine you end up with a 2500 Khz signal (500 x 5).

So issue only appears to happen over 200 Khz. This is really easy to reproduce.

Author: amy Time: 2017-12-22 15:18

Codebest replied at 2017-12-20 11:57
Thanks for that.

I found another issue with the DDS.

Sir, our engineer is modifying. I will reply you next week, please wait for a while.

Author: Codebest Time: 2017-12-26 11:56
Ok, thank you.

Author: Codebest Time: 2017-12-29 11:49
Edited by Codebest at 2017-12-29 12:03

Ok,  we are making good progress.

I found another issue,  this time with AM/FM,  mostly FM.

AM modulation appears to work,  however the "CW Frequency" should be "Mod Frequency" or "Modulation Frequency". So really just a typographic issue.

FM on the other hand has some serious issues. It would appear the Parameter frequency is being ignored to set the carrier frequency and instead "CW Frequency" is being used to set the Carrier frequency. This is fine except I can't get the modulation frequency to set. Perhaps the "Frequency" and "CW Frequency" fields are flipped around. In any event FM modulation isn't working at all well for me. The DDS functions are getting very close to fully working.

Edit:
I confirmed that the two frequency fields appear flipped,  also entering 10000000 (10Mhz) into the CW Frequency field results in a carrier frequency of 5 Mhz (1/2). I can post more details if needed. The data is being pulled from the wrong field for setting the carrier frequency as well as the modulation frequency, this is only a problem for FM,  AM works well.

Thanks

Author: Codebest Time: 2017-12-29 12:33
OK, oddly AM is now suffering the same issues as FM. The Frequency field is being ignored and instead the carrier frequency is set by the CW Frequency. It appears to not have the same issue of being 1/2 the set frequency.

Author: schaeck Time: 2018-1-11 03:02
Will this update be for the public?

Author: amy Time: 2018-1-12 10:03

schaeck replied at 2018-1-11 03:02
Will this update be for the public?

Sir, sorry, I missed your last message.
I will test and reply, please wait for a while.

Author: amy Time: 2018-1-31 17:01

schaeck replied at 2018-1-11 03:02
Will this update be for the public?

Sir, please send a message to me caiyijun@hantek.com
I will send the software to you.

Author: Codebest Time: 2018-2-5 23:21
Has the AM/FM issues with the DDS been looked at yet ?

Thanks

Author: amy Time: 2018-2-6 08:46

Codebest replied at 2018-2-5 23:21
Has the AM/FM issues with the DDS been looked at yet ?

Thanks

Sir, I have sent the software to your email. Please check.

Author: Codebest Time: 2018-2-6 12:27
AM Modulation appears to work correctly. The CW Frequency (carrier wave) places the carrier at the correct frequency, the Frequency sets the modulation frequency and appears correct. Depth works as expected.

For FM modulation nothing appears to work as expected. I'll connect to a spectrum analyzer tomorrow to see what is happening. It's very strange.

Thanks

Author: QMESAR Time: 2018-2-6 23:50
Hi Amy.
Please help ,e understand this person has some bugs in the DDS you fix it and send this person SW,
I has some bugs which you fixed and you send SW to me
Now when does all the people get the SW which is working and all bug fixed in my opinion my SW has my reported bugs fixed and this person SW has his bugs fix but my SW still contain the Bugs this person has ????????
I am use to that a new version get uploaded for all users not now it seams you get a version with the bugs fixed you reported and the other peoples bug reports are still bugs in my SW
Please help me understand how this is working

Author: QMESAR Time: 2018-2-6 23:51
Edited by QMESAR at 2018-2-6 23:52

Hi Amy.
Please help me understand this person has some bugs in the DDS you fix it and send this person SW,
I had some bugs which you fixed and you send SW to me
Now when does all the people get the SW which is working and all bugs fixed ?in my opinion my SW had my reported bugs fixed and this person SW had his bugs fix but my SW still contain the Bugs this person had ????????
I am use to that a new version get uploaded for all users not now it seams you get a version with the bugs fixed you reported and the other peoples bug reports are still bugs in my SW
Please help me understand how this is working

Author: Codebest Time: 2018-2-7 12:03
The version numbers of the software keep incrementing , so I'm assuming the bug fixes are cumulative. Helping to report bugs and beta test the software I'm very sure will help everyone in the long run.

So FM modulation appears to be cutting the CW Frequency in half , so 10 Mhz becomes 5 Mhz carrier, 20 Mhz becomes 10, etc. AM doesn't have this issue, it works fine.

Jeff

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