Episode 16 - Review of a $50 Chinese signal generator

[HitAndMissLab]

I have this one and I am very happy with it.

It was not mentioned in the spec and in this video, but this signal generator can do Sawtooth waveforms as well. Both rump up and rump down. You just set it to triangle and than when it asks for a duty cycle, you move it to 49% or 51% for ramp downs or rump ups.

[david]

Very nice review for someone who needs a signal generator that is not of laboratory quality. Good review of most of the features of interest.

[leonardmilcin]

"Things get interesting as frequency goes up"
Rule #1. Things get always interesting as frequency goes up.

[JasperJanssen]

The back and forth at higher frequencies/odder duty cycles looks like quantization noise — i.e. You're seeing 1 sample worth of the underlying dac frequency, when the numerical result is right in between the two samples.

[WillemExist]

The jitter makes complete sense. They have implemented a numerical controlled oscillator. Basically a feedback accumulator. If the fpga clock frequency is too low, you will have that kind of jitter.

[freequest]

I know this is a Chinese signal generator but could it be used to generate Australian signals?

[hitechespresso]

I got one. Works perfectly. Thanks, Jack!

[billybbob]

Thank you. You saved me from wasting 50 on something that would be totally useless for my application.

[cidpusa]

Thanks awesome review and the prices have fallen on e-bay to under $20

[johncunningham]

Interesting, a signal generator at $50. not bad. Thanks Jack! a very informative presentation, well done.

[GONZOFAM]

Pretty nice. It will work for me in the audio range. I'm going to use it as an input to a synthesizer.

[mattcero]

Great video sir! Would this be a good product to test speakers like tweeters, mids and woofers? I have about a thousand I need to check for sound. If so, how loud would the test be? Thank you.

[HashanGayasri]

For that amount, you can add a tiny bit more and get a 40M samples /sec USB oscilloscope with a way better function generator (with regards to the output waveform - not features) .

[tomstern]

These waves are when terminated with 50 Ohm? I have a similar device which I bought for $100 with a case and all and I can tell you, if you have $50 you can also get $100 - $150 and get a decent generator.

[crazyham]

Excellent Video,
Thank You.
I had just ordered one prior to watching.

This will definately Suit my Purposes ⚡🙏⚡

[davidprice]

Very well presented review, concise, yet all the important and relevant information. Thanks.

[davidhaney]

for setting up reel to reel tapes i find this does the job ok, im only using sine waves at 1 and 10 khz at .75v and for that its just the job its small, and it just works, but you need a scope .

[injoelsgarage]

Excellent review. You should make more of them. Cheers, Joel

[cajuncoinhunter]

What cable were you using from that unit to your scope ??? If it was a supplied cable, it will show that on a scope, the better the cable the better the signal... I've seen it happen

[MarkSeve]

Its Sept, 3rd 2019. Seems I'm a little over 4 years to late to enter the drawing for this one. :( lol Thanks for the info though Jack. Keep up the great work you do sir.