Cheapest Full Featured Function Generator from AliExpress
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- Опубліковано 7 лип 2024
- Cheapest Full Featured Function Generator from AliExpress
qls2800 Function Generator Aliexpress link: www.aliexpress.com/item/40000...
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HEY YOU ABOUT TO POST SOMETHING STUPID:
Yes, I know my hands are large/fat. It's because of a heart condition I suffer from called Congestive Heart Failure. Here's a link to some information about CHF: cle.clinic/2TdS2Ux
One of the symptoms is that is causes fluid retention, mostly in the hands, feet/ankles, and face.
It will kill me one day. I'm doing ok right now, but someday...
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Here is all the gear I currently use:
Oscilloscope 1: Rigol 1054Z amzn.to/2PRybtN
Oscilloscope 2: Siglent SDS1202X-E amzn.to/31Kk1yH
Power Supply 1: TekPower TP3005N amzn.to/2TeQnxI
Power Supply 2: RUIDENG DP50V5A amzn.to/2sNicSe
Signal Generator: JS2800 ban.ggood.vip/d9vk
DMM1: Owon18B amzn.to/2SbIGLs
DMM2: Aneng 8008 amzn.to/2sNQncI
DMM3: Aneng 8009 amzn.to/2S5qeEp
DMM4: Uni-T UT801 amzn.to/2S89SuL
Soldering Station1: Zeny (Yihua)862D+ amzn.to/2S49z4e
Soldering Station2: KSGR T12 amzn.to/2Wk7Dn9
Light Meter Smart Sensor AS803 amzn.to/2B2gyRg - Наука та технологія
Any fellow OCD people out there obsessing over those factory stickers still on the drawers in the background? Stickers that come off easy and leave no residue are one of life's great pleasures. I know those particular ones come off easy and leave no hard to remove residue.
Great video!
lol
You must be the same person who complains about computer cooling fan "noise" on product reviews. BTW it ain't OCD it is adult autism.
You may want to get yourself a few bottles of sticker remover; they're like a quid a piece if I remember correctly, or perhaps even cheaper. If you remove lots of stickers, get yourself a big bottle of orange terpenes instead. Orange terpenes are mainly limonene, which is the main ingredient in sticker removal fluid.
@@robc8468 Nobody mentioned complaining. Well, besides you. But you were able to get your invalid viewpoint inserted, and some name calling involved...so you've achieved your life's goal for the day.
@@chesshooligan1282 Thanks for the tips.
When connected to your DSO with coax there was no 50 ohm terminator. There will be reflections on the coax that maybe the source of the jitter as the DSO triggers on a reflection pulse rather than the actual pulse. Please repeat with a 50 ohm termination at the DSO and look at the leading edge and trailing edges of the square wave for it's risetime and falltime. Still looks a great product. Good video review too.
Is there any driver available for this device
One of these days I’m going to have to buy a function generator cause I’m running up against projects where building something on a breadboard will just not cut it. This one looks like a decent candidate, great video Paul. Looking forward to seeing what the mystery project will be, maybe it will be the solution to my problems.
Great budget Function Generator. I purchased the FeelTech dual channel function generator from Banggood you reviewed and it's a great value saves space too.Keep up the good work.
"Jitter on a square wave" my new bluegrass tune
Well done. Used your link and ordered one right away. Thanks.
I think you make a very good point about what you need, generally if you need the high end gear you already know you need the high end gear whereas a beginner will have plenty of options with a cheap function generator which could be used to clock circuitry or test RC filter response etc. Personally I have the rigol dg822 at home and it covers all my personal electronics needs.
Pretty impressive function generator, dude!!! 😮
Thanks for the review!!!
You have good taste in budget oscilloscopes sir.
Sounding better that's a great function generator for the price
Paul, You sound like you are feeling better. Great video..It's amazing how much test gear you can buy now days for very good prices. And much of it is far better than the ole Heathkits, Eico's and others. Downside it if you blow an input, you might be hosed. 73 Glenn WA4AOS
I just checked it out and it’s $52.60 as of Jan 14, 2020. Still not a bad price.
That is a cool generator. I also notice the OptoElectronics 7010 frequency counter on top of the drawers. I have one that I bought brand new in 1980. I fried the input with too much DC input.
Good eye! It's a nice little counter
Do you think the 5MHz version would have jitter on the same frequencies as this one?
Paul I heard mixed reviews on the DDS signal generators. Thanks for posting.
I have a JUNTEK JDS6600 Dual Channel Function Generator That is similar...... Good Review.
Hi, can I make use of it to tune a VHF repeater base or a VHF duplexer? Thanks!
Great video Paul and you sound a lot better today good buddy
I have the FeelTech Fy6900 60Mhz and it is awesome at only $90. There are cheaper models from FeelTech that costs about the same as the one you bough and has 2 channels. That one is also available with up to 100Mhz. They changed to a FPGA for the 6900 though so it maxes at 60Mhz but is more reliable.
They recently made a new model that costs a lot more and trades the counter for a 3rd channel which is not worth it. It is really just the 6300 with a slightly different case.
I purchased one of those for simple testing and having 2 independent outputs is a great feature! Also allot easier to carry vs my HP gens lol
Does it produce a noise like a signal generator to align a radio?
If I get BNC to rca I can plug it into the audio input?
TTL output I don't know what that's for. It says sync and up to 5v.
I bought an oscilloscope and I will be fixing it. Turns out I will have to buy a couple of things to do that, which includes a function generator. Thanks for the video.
Good luck!
Nice option. I've been looking at the FY6900 for a little bit more money but that one goes to 20-100 MHz. Problem is that it's mains powered and the PSU is.. well, cheap Chinese. This one seems to be powered by a 12V plug pack or something like that so no problems with wonky power supplies?
Thanks pal, was it properly grounded ?
Can this be used for beginner radio work, or is that a different kind of generator?
I agree, for 40 USD that thing is very sweet.
Nice for the price.
Good catch Barry! What I also noticed with it being not terminated the voltage should have been much higher which suggest to me that the generators output impedance is much much higher than 50 ohms ???
TNX for the upload and a peek inside ! 73 N8AUM
Made it to the big time! Adafruit advertising.
Not bad at all for the pricing.
Already went up - US $52.60 for 3 dollars more you can get the 5mhz.
At the @6:15 time mark it was showing the jitter , ok I will agree with you on what it looked like on your scope , BUT I think you used a BNC - BNC connector that came with the unit...... If that is the case , then try a quality RG-316 type cable , I can almost bet ya that anomaly goes away.... I have seen it quite a few times.... I use those supplied cables for probes in signal tracers and DIY projects , I just cut one end off and that goes inside my project boxes or probe tubes .....Have a good one Mon Ami.
Tiene señal O.M amplitud modulada A.M?
Every time I watch one of your videos, you have a different oscilloscope! :)
Shh don't tell anyone
Thanks for the video. Trouble I find is that this 'affordable' Chinese test gear works great for a while, then packs up after a few months light use! I'm minded to think it's a false economy and better stick to the more expensive, recognised makes.
So 3 MHz means
It says you can use the computer to control it. Guese that means you get all the stats on the pc or just in the unit?
I've been wanting one of these but I tend to buy the cheapest stuff because I break things from time to time.
a frequency/clock genarator, with a large range, but that only output square waves is more or less usefull than a signal genarator that output in a much lower frequency range but have options to the wave form ?
Yank the crystal oscillator on the Altera, replace it with a Good TCXO, I'll bet that jitter goes way down. Unless it's the power supply...
I have seen these available but they do not seem to do sweeps so I have been buying used sweep generators when I have needed them recently.
It does sweep. I just made a video with it sweeping a low pass filter.
@@learnelectronics Good to know ... I was unable to find that out from the product information I saw. Thanks for responding on this point.
My apologies if you’ve mentioned it in the video I haven’t watch the whole thing yet but I’m in the middle of some work and if I get distracted I wanted to be sure to get my comment.
If you haven’t tried the feeltech 60 MHz full function generators… They’re pretty great in my opinion. I’m not as experienced as you are, but I do have a lot of precision gear by HP and Techtronics… A lot of which is too fancy for me to use. And I definitely couldn’t afford the stuff… But spent a few years looking and I got lucky and bought most of it untested or not working and replaced a few bad caps. Or a few small problems like that. That was the only way I could afford nicer gear. But I’ve been second-guessing that decision because there are a lot of very nice cheap pieces of test you’re coming out of China.
when I saw those feeltech 60 MHz function generators… Especially the newer version… I had to jump on it. I’ve been happy with it! Especially for under $100 like Banggood puts them on sale and so do others from time to time! There are several very long forum posts on Eevblog discussing a few isolation problems and such but it seems they fixed quite a bit in the later generations.
Love your channel as always!
And anyone who says anything about your hands can go stuff it up their ass. It’s crap you have to put that in the description.... because of jerks prowling around the Internet. Everyone thinks they’re a professional with nothing else to learn…
Shit man.... it’s much easier going through life realizing that we don’t know everything, and it’s awesome to learn stuff.
The most important thing I’ve learned is that the phrase “I don’t know“ is such a freeing thing to say, And opens up a world of learning and possibilities!
By the way the model I picked up is the FY6900 I believe
I have reviewed a couple of FeelTech Gens, they are quite nice. I like your name, Im a guitarist myself.
learnelectronics oh my apologies I’ll have to look through your videos again and check out those reviews. If you’re on Instagram you can check me out at “Hull Guitars.” Honestly more tool collecting and general woodworking, but some guitar pictures on there. I tend to use Instagram for more daily life and just posting fun stuff instead of business. There are a lot of wonderful guitar/violin builders and woodworkers on Instagram and it’s always fun to browse around.
Other than generating function displays on an Oscilloscope exactly what is the purpose of a signal generator? Why would someone need to use this? Also why would someone need a 60mhz verses a 15mhz generator for example? Newbie here just starting out.
Is the sweep mode for testing audio?
I got many Questions
Yes
Looks great value and very useful. Any idea if it can be easily hacked to the 5Mhz version?
I saw a serial port in there. Good place to start
Would that work to do in alignment on a CB radio I just put new capacitors in this walkie-talkie and I can tell it needs an alignment would something like that work
You could buy 25Mhz MHS-5200A for almost the same price.
#easylab4kids bought it, but whats the USB connector for?
You need to terminate the transmision line!
This is at a price point where the cost of getting into the UK will be half the cost of it. by the time you've added input duty, vat, and then the post office fee for taking the tax from you. you might was well buy a more expensive one in the long run.
I already have two function generators how many do I really need? Thanks for the video!
You'd need one more, if you're emulating/working with 3-phased systems :ø)
Gotta love the drop in prices on equipment, hopefully it will be fully servicable if/when it breaks in the future.
U can never have enough LOL
It looks like your GW-Instek (analog function generator) is a model 8020, right? If so, the digits on the display are _recovered_ by the generator, not used to _generate_ the signal. (This is well described in the manual and accompanying schematic). The display isn’t all that accurate. Based on my experience with that and other, similar GW-I models, my guess is that the cheap-o instrument you’re testing is hugely _more_ accurate as a frequency counter than the generator’s display.
The thing that ultimately drove me to replace all of our analog function generators with DDS ones was the unacceptable frequency drift over temperature - up to a few percent. This is especially problematic as the instrument warms up over an hour sr so and/or ambient, as, for instance, when the sun passes the nearest window during the day.
Assuming your DDS generator has a crystal oscillator for its MCU, that drift would be several decimal places out - making it a non-issue. On the other hand, the jitter you observed at the frequency limit will, most likely, always be worse with a digital instrument. Well, that, and the specs are often rather optimistic.
Nice review. The 50 ohm termination thing can sneak up on all of us at one time or another. I believe the word you were looking for is ‘bandwidth’. If you make another video, your viewers might find that an interesting topic unto itself. Cheers.
8019G
What's cheapest signal generator with a sync output feature?
60MHz around $100 "Koolertron Upgraded 60MHz" and "FY6900-60M"
A little off topic, I am interested in buying this signal generator but have never used Aliexpress since they do not take pay pal. Has anyone had any trouble using a regular USA based Visa credit card on an Aliexpress purchase, is it safe????
You amassing quite a substantial Laboratory Sir. Will it Sweep ?
There's a "swp" button right on the front panel, so I would assume it does. Problem I've had with the FeelTech variants is that they (as far as I can tell) don't provide a ramp out sync'ed with the sweep, so that you can show the frequency response of a circuit with x/y mode on your scope. They do have a VCO input line, though, so you can use a second function generator to generate a sawtooth or triangle wave to drive both the signal generator and the scope.
Yes it does linear & log sweep
times are changing now rather 90 $ than 40 or 45 incl. shipping .
Dude, that function generator is not even FULL featured as you say, it doesn't even generate sawtooth functions...
How do I find the PC software to change the language from Chinese to English?
Hey I just heard your chatter and thought I'd ask if there are any local groups to get involved with. I'm new to the hobby and would appreciate any resources I can get.
@@noahg7150 in Central Kentucky?
Yes sir. Just south of Richmond. I've had ears on for a while but that was one of the few rx I've had that clear. Must be near by. Sorry if that was a little weird to find you like this but I don't anyone interested and it's so cool! Not sure if there's any active clubs but a field day would be amazing! Thanks.
If you've been at it for a while maybe you knew my girls grandfather KA4BYW an old ham out of hazard passed about 10 years ago.
why does it say 2Mhz version and 5MHz? whats the diffrence? because i want a frequency between 10 to 100 on my rf antenna? can i do it with this device? sorry for my bad english but i need to submit this project to my physics teacher before end of semester
oof that jitter is meh
👍👍
You're the guy wit hthe cam on your head who reviews the headphones right ?
No
Price is now $52+
When Chinese firms are making things like this & can sell it to another country by mail order for $45 & still make a profit...you realize why electronics engineers & technicians in the west like me are not paid peanuts to do these things any more....You can make more driving a garbage truck for the town nowadays!
Purity. THD and other products. PPM in Accuracy. Decent for the Cost , Yes.
Lots of room in that case to put other stuff
I was thinking you could pretty much park your car in it!
Such as the power brick.
@@seankayll9017 I think your on to something. They had one in there till they found a cheaper supply.
Wondering myself about the power supply, if it uses a wall wart.
I have yet to see a Review where the Item Sells for what the UA-cam Creator Paid !?
Who is this company you provided a link to purchase the FG you show in this video. I used the link and jumped through their hoops to place an order and they charged my credit card the same day. Now, 6 full days later, the product I have paid for has NOT shipped. Something about 38 days until it is shipped. I smell a rat with Ali-Express.
so be grateful to "made in China"
Unbelievable for that money :-/
Don't buy anything from Lit Mobile since You Tube spams their commercials too much.
Those are garbage and you are misleading people. The amplitude on those are unstable and inaccurate. You'd know that if you put a millivolt meter on it.
I'm not misleading anyone. Your opinion differs from mine and that's fine.
your voice isn't good
I can also feel it. I guess there are some lungs problems, throat or sinusis...
Not on AliExpress anymore.