JDS6600 Function Generator Review & Teardown
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- Опубліковано 22 чер 2017
- I take a detailed look at a cheap $100 function generator that came out recently, from JunCe Instruments.
Measuring amplitudes, checking harmonic distortion, making some funky waveforms, and seeing what's inside!
Looking at the 25MHz model in this review.
There are a few things I'd still like to test (i.e PC connectivity, measurement capabilities).
UPDATE: Upon request I've made some more measurements for the linearity, noise, slew rate; see website post.
Website post (and hi-res images): sebholzapfel.com/blog/jds6600...
Callsign: VK2SEB
The state of the channels on power up are determined by the configuration that you have saved. You can set as desired (on/off) for each channel.
vk2seb very good video I have the same model you have taught me quite a bit as I am just learning about waves and oscilloscopes. Many thanks for your time.
A really useful and helpful review - thanks!
I have the 60M version of this Function Generator. I was concerned when VK2SEB said that his FG shut down after around 20 min. Fortunately, mine remained on until I manually turned it off. This clearly is not a high quality test instrument, hence the price. I enjoyed the tear-down and evaluation. For me, some times all one needs is just "good enough."
Great teardown! Did you notice any components which might convert one model (the 15Mhz) one to a higher frequency capable one? More often than not, the $40 difference in models is due to a $3 blocking diode, or even firmware :D
I never thought that is possible. Cool animation @
Great review, thank you !
Thanks for the review. Is this still the best bang for buck, or is there better in the $150AUD range? I have a Siglent sds1104x-e so I was wondering if this is ok or whether to just get the SAG1021? Did changing the wallwart solve the ground potential issue? Is it safe for scopes? Thanks.
Great overview ! Do you have any mains leaking issue like in older feeltech Chinese signal generator
Thanks for that tear. The Lattice is a beautiful chip, some have built in ARM processors on the same FPGA package not sure of that one..
I bought the 60Mhz version of this a few months ago.
Thinking of getting one for aligning receivers. Other things to evaluate... What's the sine wave at the upper frequency limit like? Others report it being noisy, is the noise only a problem at higher outputs, say > 100 mV?
I would like to know more about the TTL pins on the back.
13:40
Hey Seb.
I'm interested in this little thing as my first function generator. Would you recommend this for someone just starting out in electronics? I've got some other gadgets from Ruideng as well, they sell (or maybe make? But I think just sell?) these units, that's how I found them. Love the other stuff. Nearly done building the DPS5020, fun little project that. Love the USB tester and dummy load, awesome stuff.
how you do that
This signal generator can do 4-20 mA current loop? thanks
can I use ch2, to modulate a signal from ch1? (example: 1MHz carrier on ch1, 1000Hz tone from ch2) or would this possibly fry the outputs if they short together? What is a good way to mix the two signals? I'm a little disappointed in the modulation functions of this model compared to the 6800 or 6900. maybe I should have spent that extra ~$40! :P
I just got this and im well happy with it for what it is.. as far as turn it on and the generator comes Strat on is easy fixed just set the generator to how you want it to start up ie on off 5 hz 3000.00 hz what ever and then just press and hold the ok button until it beeps now when even you turn it on it will start like that