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RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator

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CharlieWorton:
Yes!  Finally!  My JDS6600 has arrived!

Canada Post lost it for a couple of days, but after screaming at them loud enough to peel paint from a barn, I was able to convince them to bestir themselves, and lift a finger... and they discovered that they HAD mis-delivered it, and were able to retrieve it and get it into my hands.  :phew:

Of course, this would be the weekend that my sister is moving, so my weekend is shot - and I'm tearing apart my hobby room in preparation for painting it, so that will add a few days onto the far end.  So I won't have any decent time to play with my new toy for a while.  Sigh.

Hey, RD Tech!.  A little while ago, I posted
--- Quote ---I don't believe the 60Mhz claim.  I'm sure there's something there, but I'll bet it winds up looking like a weak, wobbly triangle wave than a pure sine.
--- End quote ---

Yah, I must have been in a particularly bad mood when I typed that.  It does look a little harsh, just standing there on its own, and I regret having typed that.  So many products these days overstate their capabilities, especially the feeltech products.  I should not have spoken harshly of your product before I even saw it.  That was wrong of me, and I do apologize.

Speaking of the feeltech product, I came across a YouTube video in which a young engineer took it upon himself to improve on the old feeltech signal generator.  With the addition of a few jumper wires and a couple of components, he improved it a great deal.  The funny part was when he said," I don't know why they used XXXX part.  This other part is a much better match for what they're doing, and it's cheaper!"

Have a good one, everybody -  and Happy 150th Birthday, Canada!  Yea!!!!!! :clap: :clap: :clap:

qq354813374:
I also bought a signal generator, JDS6600 5mVPP effect is very poor, there is a clear switching power supply noise, more than 20MHz sine wave has a significant jitter, the nominal vertical resolution of 14, in fact, simply can not reach, Because the waveform length is only 2048 points, the highest resolution is only 11-bit resolution, the oscilloscope with 20mV voltage and 100nS time base gear test 5V 10Khz sine wave, you can see the rough rough waveform, and 14bit machine More than a lot of open the machine can see the DA is a simple resistor, which used a multiplier, or second-hand components, with a knife gently scraping the surface to drop the black powder.

gby:

--- Quote from: CharlieWorton on July 01, 2017, 12:27:08 am ---Yes!  Finally!  My JDS6600 has arrived!
.
.
Speaking of the feeltech product, I came across a YouTube video in which a young engineer took it upon himself to improve on the old feeltech signal generator.  With the addition of a few jumper wires and a couple of components, he improved it a great deal.  The funny part was when he said," I don't know why they used XXXX part.  This other part is a much better match for what they're doing, and it's cheaper!"
.
.

--- End quote ---

Charlie,

I am familiar with a YouTube video to improve the MHS-5200 generator which had some serious output filter and output buffer issues.  See:


http://www.analogzoo.com/2015/08/fixing-the-mhs-5200a/

However, I am not familiar with any such update for the Feeltech FY3200S generators.  Can you provide a link for a Feeltech improvement video or did you confuse the MHS-5200 one as a Feeltech update?

gby

bianchifan:
Short review from a russian forum..

DDS generator JDS6600 (Google translate)

pantelei4:
The device has a very poor Electromagnetic compatibility,
Interference is caused by DC / DC motherboard converters.
This is noticeable immediately after switching on, if we put a probe next to it.
Sensitivity 500uV / div
Bandwidth 300MHz
The probes of the oscilloscope are connected to ground, there is no signal at the input,  noise JDS6600  is very high.
https://youtu.be/T-0A7Yr3y3I

Seller photo Power off/on.


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