Author Topic: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator  (Read 18439 times)

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Offline Marco

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #100 on: October 03, 2017, 03:02:17 AM »
It would be great to see some pictures of the insides

Don't think we should derail this thread too much, so I put up a pic of the FY6600S in the what did you buy today thread.

PS. using a zoomed in part of triangle wave to check the monotonicity of a function generator with a 8 bit scope was an idea I'm embarrassed to say I didn't even think about.
« Last Edit: October 03, 2017, 03:04:02 AM by Marco »
 

Offline RD Tech

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #101 on: October 08, 2017, 07:15:44 PM »
Hi, everybody.
Probably this is some kindof side topic but important.

I would like to make my own program to control JDS6600 (surely specific and simpler than standard), where I can find commands description for JDS? Pls. help.

Another question (JDS is new for me) for sweep frequency mode: is there any syncro signal when JDS starts  change frequensy, how to get it?

Thank you in advance
Hi friend
thank you for your question
I am the manufacturer of JDS6600,
Let me answer your question one by one
1, there is communication protocal, you can check the file again , although it is chinese, you can tranlate by googl, if you don't understand some words, you can contact me
2, no ,therer is not
 

Offline RD Tech

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #102 on: October 08, 2017, 07:17:01 PM »
Hi tritutik,

I found a PDF of the command protocol on the included CD. It's in Chinese, so you may have to use Google Translate if you can't read it.

(I tried to copy the filename here, but the Chinese characters didn't come through. If you look in the Chinese folder, you'll see a subfolder with some PDFs in it. The comm protocol PDF is the smallest one, about 288kB.)

caned
yes, you are right , thank you
 

Offline n4axe

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #103 on: October 12, 2017, 02:41:56 PM »
RD Tech, Have any of the indicated issues such as the phase lock with two channels active been rectified? If so / not is this or will this be a hardware or software fix. I am currently shopping for a dds function generator to pair with a new o-scope. Thanks.
 

Offline RD Tech

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #104 on: October 12, 2017, 05:57:45 PM »
Hi friend
all our problem are fixed and updated
don't worry
 
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Offline Giuss

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #105 on: October 13, 2017, 08:45:12 PM »
I'd like to know if a generator like this can be a good instrument for hobby/home use?
A Rigol or Siglent generator costs no less than 300-400 $ and I don't know if it's worth to spend this money.
 

Offline RD Tech

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #106 on: October 14, 2017, 02:38:33 PM »
I'd like to know if a generator like this can be a good instrument for hobby/home use?
A Rigol or Siglent generator costs no less than 300-400 $ and I don't know if it's worth to spend this money.
the function is not too much , but the quality is very good
you can compare , all the data are real
 

Offline alreadystarted

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #107 on: October 17, 2017, 08:00:54 AM »
Is this product still in production?  It is not currently listed on the RDTech aliexpress store.
 

Offline RD Tech

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #108 on: October 17, 2017, 01:15:21 PM »
Is this product still in production?  It is not currently listed on the RDTech aliexpress store.
we still sell it
but we will decrease the price to sell , you can check it after one day
 
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Offline kulla

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #109 on: October 17, 2017, 07:57:30 PM »
Yes, they still sells, bought one 60MHz for $123 few days ago, waiting for delivery right now.
 

Offline RD Tech

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #110 on: October 17, 2017, 08:02:58 PM »
Yes, they still sells, bought one 60MHz for $123 few days ago, waiting for delivery right now.
you buy one ? what's your order number ?
 

Offline Mr. Scram

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #111 on: October 18, 2017, 12:49:29 AM »
Maybe it's a bit of an odd question for a device of this class, but does this come with LabView support and drivers?
 

Offline RD Tech

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #112 on: October 19, 2017, 07:16:29 PM »
Maybe it's a bit of an odd question for a device of this class, but does this come with LabView support and drivers?
when you buy it ,. there is file ,. it contains all things
 

Offline xzswq21

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #113 on: October 27, 2017, 09:47:08 AM »
Hello
I want to buy one 60MHz function generator
but what's the difference between Feleltech, Kuman, JDS, Koolrtron 60MHz function generators?!!
for example I found the below device:
https://www.amazon.com/gp/product/B07596133Q/ref=ask_ql_qh_dp_hza

I don't know what I should do!
actually I should tune my medical board (Step response and Frequency response) and I need such a device   :bullshit:

Best Regards
 

Offline RD Tech

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #114 on: October 27, 2017, 05:10:36 PM »
Hello
I want to buy one 60MHz function generator
but what's the difference between Feleltech, Kuman, JDS, Koolrtron 60MHz function generators?!!
for example I found the below device:
https://www.amazon.com/gp/product/B07596133Q/ref=ask_ql_qh_dp_hza

I don't know what I should do!
actually I should tune my medical board (Step response and Frequency response) and I need such a device   :bullshit:

Best Regards
Hi friend
thank you for your message and your question
about Kuman, JDS, Koolrtron, they are from same designer . our engineer and Minghe engineer design the JDS6600. other Kuman and Koolrtron should use the brand.  JDS6600 is newest version.
about the link, it is also new . it is a hand-held, JDS6600 is desktop. data and function are same
 
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Offline xzswq21

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #115 on: October 27, 2017, 09:17:10 PM »
Thanks for your answer and your attentions.
is there any hand-held version for JDS6600? I want to buy the newest hand-held version.

the manufacturer has uploaded a video to show the generating of high frequency sine signal with Koolertron 60MHz:
http://www.youtube.com/watch?v=5cqbH_8tKL4&feature=youtu.be

Thanks
 

Offline xzswq21

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #116 on: October 28, 2017, 03:31:40 AM »
if you have JDS or Koolertron or kuman or ... could you please do a test for me?
set the output amplitude to 2Vpp (or 2Vpp RMS) and AC coupled mode ( also set the input impedance of your Oscope on 50R).
now increase the frequency from the lowest to the highest value (at-least 20MHz).
plot the output magnitude (20*log10(Vout)) vs frequency or upload a Table to show the result.
I would be grateful if you could do it for me :)
when I want to tune my circuit for example over 10KHz to 15MHz the input amplitude should not be changed significantly.

Thanks
« Last Edit: October 28, 2017, 03:52:33 AM by xzswq21 »
 

Offline RD Tech

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #117 on: October 28, 2017, 01:40:04 PM »
Thanks for your answer and your attentions.
is there any hand-held version for JDS6600? I want to buy the newest hand-held version.

the manufacturer has uploaded a video to show the generating of high frequency sine signal with Koolertron 60MHz:
http://www.youtube.com/watch?v=5cqbH_8tKL4&feature=youtu.be

Thanks
you are welcome , friend
JDS6600 is only Desktop. the link you give me , the product name is JDS2600.
same data , only the difference is the appearence . understand ?
JDS6600 and JDS6600. they are all newest version
 
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Offline plb

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #118 on: October 29, 2017, 09:55:12 PM »
My first post on this rather impressive forum. Treat me gently.
RDTech, if there is no sync signal out to the scope, how does one sync the scope to the generator for the sweep function?

Thanks
 
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Offline kulla

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #119 on: October 30, 2017, 04:57:00 AM »
Yes, they still sells, bought one 60MHz for $123 few days ago, waiting for delivery right now.
you buy one ? what's your order number ?

504323485816309
 

Offline RD Tech

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #120 on: October 30, 2017, 05:44:54 PM »
My first post on this rather impressive forum. Treat me gently.
RDTech, if there is no sync signal out to the scope, how does one sync the scope to the generator for the sweep function?

Thanks
sorry, friend
there is no way to do this , sorry
 

Offline RD Tech

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #121 on: October 30, 2017, 05:48:35 PM »
Yes, they still sells, bought one 60MHz for $123 few days ago, waiting for delivery right now.
you buy one ? what's your order number ?

504323485816309
I saw it , it is on the way,, it arrived at your country
 

Offline trys

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #122 on: October 31, 2017, 11:26:32 PM »
I've found the mains leakage to give 312V p-p (here in the UK), screenshot attached.

I then tried testing a whole bunch of 5V USB power supplies I had, and found they all (except one, but rated only 1.2A) leaked mains voltage pretty badly.

So I'll be making a little linear 5V supply for it.

I'm not getting much luck at getting a clean signal at low amplitudes (50mV).

Apart from that, a great bit of kit.


I received my JDS6600/25Mhz about a week ago and I am suitably impressed with its functionality. I have put it through some tests on a Siglent SDS 2204X 200Mhz DSO and it performs rather well. The two exceptions are a)  the power pack leaks 78 V AC measured from mains earth to the DC ground of the power pack. Leakage current is 14µA. Not life threatening and can be fixed by replacing it with a transformer based PS.
 

Offline RD Tech

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #123 on: November 01, 2017, 12:16:39 PM »
I've found the mains leakage to give 312V p-p (here in the UK), screenshot attached.

I then tried testing a whole bunch of 5V USB power supplies I had, and found they all (except one, but rated only 1.2A) leaked mains voltage pretty badly.

So I'll be making a little linear 5V supply for it.

I'm not getting much luck at getting a clean signal at low amplitudes (50mV).

Apart from that, a great bit of kit.

Hi friend
thank you very much for your message
could you make a video to show the problem to let me help you ?

I received my JDS6600/25Mhz about a week ago and I am suitably impressed with its functionality. I have put it through some tests on a Siglent SDS 2204X 200Mhz DSO and it performs rather well. The two exceptions are a)  the power pack leaks 78 V AC measured from mains earth to the DC ground of the power pack. Leakage current is 14µA. Not life threatening and can be fixed by replacing it with a transformer based PS.
 

Offline trys

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Re: RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
« Reply #124 on: November 02, 2017, 06:00:03 AM »
I posted a screen capture of the 312V p-p mains leakage to the Ground pin of the PSU that came with the JDS6600 in the last post.

The images for problems at low signal levels is given in the two attached photographs.

The signal generated by the JDS6600 is set at 30mV, 1kHz

One picture is a screen capture of the scope itself. One picture is of the JDS6600 showing the settings.

Kind regards,
Trys
 
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