Uni-Byte 0060 - FG 100 DDS Function Generator: NO! JUST NO!

Review of this little function generator. However, from the first moment we turn it on it starts out bad and just keeps getting worse. Hang in for the duration to seem some of the worst technical fails ever.

To their credit, the vendor immediately returned all my money, but Just can't help thinking they know what they are selling.

#fg-100 #electronics #functiongenerator #dds

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[sorcererstan]

I just re-checked mine that I got several years ago and it's actually very nice waveforms all around, up to the max specs. Must have gotten lucky.

[trcwm]

Great video! anxiously awaiting the follow-up.

[shaunmorrissey]

I have one of these and I have to say mine behaves completely differently, I opened mine up and the construction is quite a bit deferent and the op-amps used are TL082C. Seems I have been lucky with my purchase.

[davidv]

Thank you for sharing - sorry, but I have to admit I had a good laugh at the waveforms - glad to hear you got your money back. Replacing the opamps would be interesting and the "clip and clean" method would probably be best in this situation - less chance of board damage. Regards, David

[TonyCasneuf-ll]

Thanks for your video, the one i've bought doesn't even generate waves only bulbs coming out 😂

[markharrisllb]

I bought one of these when I first had my Hantek 6022BL. Even though I was extremely new at the time I realised it wasn’t helping my progression. Sadly I think the market will be mainly the very naive like myself and it does negatively impact on our experience and journey into learning electronics. Even sadder is that there are several YouTube videos praising them at the price.

[ivolol]

I saw a russian? video of a guy who had ordered a DIY 0-30V PSU board. Whole board worked fine [eventually], except... they had included dud opamps in the kit. So many problems on first start. And when he substituted some others he had on hand... also dud 'cus they'd be ordered from ali. He eventually made his own 'opamp tester' circuit (verify very basic comparator functionality) to find a portion of working ones out of what he had on hand, and finally the whole kit worked perfectly.

[aquinamedia]

Many thanks for the educational and buyer beware content!
Could be an interesting follow-up video on swapping the op-amps.

[mrv]

Well, the review seems to be missing a suggestion on a good generator within the same price range. The video is interesting anyway, so thanks for sharing.

[theDaftman]

well i have 2 of these, i use them for SSB setup, nothing wrong with mine at all, you must have got yourself a dad one.

[georgehanekom]

I don't think I need a AWG for what I do just yet and I do have the little XR2206 kit in case I need to make a speaker beep. The local online retailer had this one for sale with one review that was terrible so I was really looking forward to your input. Also looking forward to see if changing the opamp works, I had a clone DSO150 oscilloscope go magic smoke on me and after ordering new ICL7660 (I think) IC's I managed to get it working fairly ok after that.

[jcbu]

Can the device be used as a sound generator? Thanks for the reply.

[stargazer]

We bought one of these at work because it was inexpensive and if was damaged in the field it would be ok. Had all of the same issues our tech says. Buyer beware!

[thsinner]

I had been looking at this to make my way into the pemf field just to experiment, Don't really know what i'm doing but if this is so crap, what other options are there in the pulsed signal offerings?
My budget isn't crazy but could stretch for more than this unit goes for by a little.
Is there even such a thing as a cheap, two channel adjustable voltage pulse generator that works and won't require an expensive oscilliscope to experiment with?
I won't likely be going into the high kilahertz ranges, solfegios and such are mainly under 1000hz...

[alasdair]

I made the mistake of building the kit version of the FG-085, and it is even worse. The FW has more bugs than a beehive.

[jeanyluisa]

Those cheap function generators are sold by countless resellers. Even though they all look the same, they have different firmware versions and and some different hardware components.
Thats why the many tests of this generator on Youtube show so different results.
I bought one of them about 3 years ago and its as lousy as the one in this video. I bought another one 2 month ago. That one works fine, the sigals it generates are ok and it even has some more waveforms than the old one.

[tomigalik]

How many max amper can it produce in output?

[mdelabo]

It strange on your oscillo
Mine wark very good!

[jlippencott]

One would think they don’t do any testing with such a reject rate.

[paulhall]

At about 15:00 I nearly choked to death.