Low Cost Signal Generator 80MHz 2 Channel by Junctek JDS8080 ARB review

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In this video 'Low Cost Signal Generator 80MHz 2 Channel by Junctek JDS8080 review', I'll look at a new generator by Junctek. It is the JDS8080 and it is an 80MHz signal generator, it is actually an ARB generator with 2 channels. There is a discount code at the link below. #ARB, #generator
First 20 people get 40% discount! See discount here; "At present, our products are still in the promotion stage, so there will be a discount code of $40 (only 20 places)
CG6JEBQN49VN"
New discount code (not sure if it replaces the one above or how many can use it): 9EIAQI1R1ANT
Link to Junctek Signal Generator: www.aliexpress.com/item/10050...
Link to T-Shirts and more: www.redbubble.com/people/kissa...
Power Supply link: ebay.us/LqwFj6
Please use links that cost nothing extra but will help support the channel:
Omicron Lab: www.omicron-lab.com/applicati...
TPA3255 Power Amplifier board: amzn.to/3LgRZTl
GW Instek 4 channel MDO Oscilloscope: amzn.to/3rvY7PK
MicSig Oscilloscope: amzn.to/3B4DcXe
MicSig Differential Scope Probe: amzn.to/3HvRG4A
Pico Oscilloscope: amzn.to/35UytvC
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Other videos that might be of interest:
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Please support this channel that will not cost anything extra by using my link to Borbede BD-99, this meter is around $47 which is low cost for a high count meter with high accuracy:
amzn.to/3DRgUbZ
Links to support this channel that cost nothing extra;)
Fluke 87V link: amzn.to/3l4QUCq
Hioki 4256 multimeter: amzn.to/3idmexS
Hioki 4282 multimeter (my favorite meter): amzn.to/3xjwGYN
Testo 760-2 Multimeter (on Sale): amzn.to/38PQE4H
Amazon Commercial 90DM610 Multimeter: amzn.to/2XOO4pf
Redfish Clamp-on Power meter: redfishinstruments.com/produc...
Kaiweets: kaiweets.com?sca_ref=1269738.glN6S8aePH
TDA8954 Class D amplifier: amzn.to/2LBqvxF
100Picoscope 4444 (differential scope kit): amzn.to/2V4sRK0
GW Instek MDO-2204EX (has Generator, Power Supply, and Multimeter):amzn.to/3xmCQYa
Micsig Differential Probe: amzn.to/3oUDtVu
Micsig Current Probe: amzn.to/3nRso6v
Hantek Current Probe (low cost): amzn.to/3qrbVHH
PinTek Differential Probe: amzn.to/39SWqlt
Uni-T 2-Channel ARB Generator: amzn.to/3iibBs5
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You can support this channel with this link to Patreon - I really do appreciate your support? This support helps me purchase the equipment I use for testing a reviews.
Patreon.com/KissAnalog
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Опубликовано:

3 сен 2022

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Комментарии : 62

@hugobloemers4425 Год назад

Hi Eddy, that Junktec generator has a lot of functionality but 0,6% THD is a bit on the high side, specially if you want to measure a Shiit pre-amp. Jokes aside, I am impressed by the low cost and extensive features but for now, I am sticking to my vintage Philips function generator. Only one channel and only 30MHz but a much cleaner square wave and all silky smooth analog dials. No app is beating that. I can not measure THD. I have only an analog scope. But I am thinking of buying a 16 bit 5MHz Picoscope. That should be able to measure THD to 96 dB and I believe has its own function generator build in. I am mainly interested in audio, so 80 MHz is not a priority for me.

@versace885 Год назад

HI Eddie, cool video. Thanks for the info. 😁👍

@KissAnalog Год назад

Thank you so much!

@graxxor 4 месяца назад

--flick-- "everyone has a little bit of Australian in them, right?" I will admit, chuckles were had...

@KissAnalog 4 месяца назад

LOL - thanks;)

@johnwright8814 Год назад

It's an unfortunate name, but it looks good for the price. Wish I had access to such low-cost gear when I was starting out.

@KissAnalog Год назад

Thanks John - I agree!

@amrishhirani6096 Год назад

Helpful jenrater and useful too liked and thanks

@KissAnalog Год назад

Thanks so much!

@rebeuhsin6410 Год назад

At least one heat sink will be for the dds. I'm afraid it is digital at heart. What I really love to know is what the inputs and sinks do.? If this can be sync with low jitter, it is much more useful.

@ErikGonzalez-ob9oz Год назад

ahh i just bought that uni-t 30mghz generator from ali a couple of days ago. Should have waited so i could use this coupon haha great video

@unsearchablethings8167 Год назад

I bought one of those too, a while back. Oh well.

@KissAnalog Год назад

I need to compare it to my Uni-T to see which has the better waveforms;)

@ErikVangeel Год назад

Hello Eddy. You have nice videos. But sometimes I get the feeling you are not prepared. Your explanations are jumping all over the place. I would suggest to read the manual first and write down a kind of script before you start recording. I will keep on folowing your channel, so keep up the good work.

@KissAnalog Год назад

Thanks so much! Sorry - I'm always trying to improve, but honestly I have a tough time scripting things;) Even when I taught at the community college, I couldn't follow a script, but I had students keep coming back;) It is tough to spend so much time doing these videos and holding down a day job - and trying to spend time with family. If I could do this full time such as other channels that are bigger - that would be fantastic! But, it takes so much more work now to make it on youtube. I appreciate you sticking it out;)

@junctek1802 Год назад

The video is wonderful, thank you!

@KissAnalog Год назад

Thanks so much! I appreciate you!!

@tomaszwota1465 Год назад

Wait, did they really call it "junk tech"?

@KissAnalog Год назад

LOL - the name should have been different I think;)

@BjornV78 Год назад

These low cost signal generators are sold under different names like Joy-IT, with almost exact the same specs. With the previous 60Mhz versions (JSD6600), there was a OK button, if you hold that button for a few seconds untill you hear the beep, the settings at that time are saved when you restart the device. I guess with this version, it is the OUT button that save the settings on reboot. These low cost signal generators do the job and are ideal for DIY and starting electronics, but they all suffer from the same problem, and that is the noisy switching powersupply and the low power output stage. The previous 60Mhz models like the Joy-IT JDS6600 used a external 5V switching powersupply, i use that model of signal generator and power it up with my linear bench power supply to have a cleaner signal.

@KissAnalog Год назад

Thanks Bjorn for the tip! I'll try that;) Yes, they are a Chinese company.

@junctek1802 Год назад

Thank you for your comments

@naidol Год назад

Seems like Chinese are knocking off their own Junctek VS Juntek (makers of psg9080). Lol. Thanks for a fair honest review. I always enjoy your experienced take on electronics stuff.

@KissAnalog Год назад

Thanks for your feedback! I appreciate you!

@uni-byte Год назад

Same company. Different branding?

@junctek1802 Год назад

Dear friends, we are Hangzhou Junce Instrument Co., Ltd. Our trademark is currently in the transition stage from JUNTEK to JUNCTEK, which means "even, stable," in Chinese;

@uni-byte Год назад

@@junctek1802 Maybe you are not aware but JUNCTEK is pronounced junk tek in English. Junk means "useless, trash, garbage". I would suggest something like JUNCETEK instead, which would be pronounced Junce Tek.

@stevenbliss989 Год назад

Check out the PSG9080 and it will be like night and day for you! Hell, even the cheapo KKMoon/Junktek/FeelTech/TZT/Cleqee etc. etc. rebadged generators at the lower end (20-60mHz) do better than what you have (which may be a rebadged nurffed model rather than a knock off). I know, I have a KKMoon FY6900 (60MHz) which does better, not hugely, and is only us$100, but still better square wave and no crosstalk. One of the things that varies a LOT from all these different brands is the output amp. the FY6900 is one of the better ones. Wish I had the PSG9080, at at twice the price of what I have, cannot spend the money, unless Elon wants to throw some my way! :)

@KissAnalog Год назад

Thanks for the great feedback Steven! I'll have to do a comparison to the UNI-T that I have. What tests would you recommend? BTW, I did ask for the PSG9080 - and I think they are sending me one;)

@stevenbliss989 Год назад

@@KissAnalog Great, hope you get it! :) BTW the Uni-T you have has a good user interface (saw a review). As for tests, an FFT on it's various waveforms for purity might be good. P-P voltages at various offsets also - most are severely limited, and many also go down a LOT at higher frequencies due to output op-amp limits. In fact one of the things that varies a LOT is the output op-amp; i.e. rise/fall time and voltage limits (you saw the crappy rise/fall of that review unit). Some units have ground loop issues, and others have leakage current at high voltage at the output (from suppression cap in PSU). Some, including me, have replaced the PSU. Here is a couple of redesigns from SDG, good channel, but hate his shilling for products so often, which takes away review trust! :( ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ML-lmuHoh-0.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-tpcHh09nb1Q.html

@miroslawkaras7710 Год назад

Ilike thw name"Junctek" ... look like synonim of quality:) I bot one of the first vertion of this waveform generators whey it had non polarized power. I generat it wok pretty good.Had some issue with trigeting from external source. Got some artifac

@KissAnalog Год назад

LOL This looks pretty good for the price point and what it does. I'll take a look to see if I can do an upgrade in a simple way.

@miroslawkaras7710 Год назад

Cheap BNC conector might have problem with graunding as the metal is too soft so when you ploog them you in they squize and get loose. I usualy in that situation take twezzer and spred the shilding so it fit tighter.

@KissAnalog Год назад

Thanks for your feedback! I'll look into what I can do for an upgrade. Maybe some filtering, maybe BNC connector replacement? I'll take a closer look;)

@junctek1802 Год назад

The metal BNC used in JDS8000 is very solid

@alklapaxida850 Год назад

for the money its an spectacular product ,,, considering a Areoflex space systems unit leaflet costs more than this unit ( i speak from experience)

@KissAnalog Год назад

LOL You are exactly right!

@rdormer 10 месяцев назад

Could that crosstalk be a grounding issue? Are the grounds on the BNC actually...grounded? I ask because I know that's a little detail that gets overlooked with a lot of the signal generators at this price point....

@KissAnalog 10 месяцев назад

Great insight! I will do a video that looks deeply into this.

@unsearchablethings8167 Год назад

Junctek? lol, my wife is Chinese and I’ve spent some time there visiting her family. You wouldn’t believe the stuff in English they put on t-shirts and clothes. It’s hilarious.

@KissAnalog Год назад

LOL It would be great for you to send us a pix of one of the T-Shirts;) We can all use a laugh! You gotta give the Chinese credit for trying;) BTW, do they have a sense of humor for their mistakes?

@unsearchablethings8167 Год назад

@@KissAnalog I’ll see I can find one I made. They’ll laugh if you tell them what it really says or means.

@roberthicks7761 Год назад

Do you know of a frequency generator with.2uv amplitude

@baconsledge Год назад

Hope it's better than the UNI-T UTG962E. The Uni-T was a nice piece of hardware but the software is garbage and not usable on Win-11. I sent mine back the next day.

@junctek7696 Год назад

The host computer software can run normally on win11.

@johnsonlam Год назад

Quiet sure it's China company ... Sounds really fun, have a laugh.

@KissAnalog Год назад

Yes you are right - thank you!!

@RicardoPenders Год назад

Hey Eddy, when you do things like this could you please set the camera to a fixed point to focus on so that not half your video is out of focus and really annoying to watch.

@KissAnalog Год назад

Thanks for your feedback!

@VandalIO Год назад

Is this Better than uni-t

@KissAnalog Год назад

I'll have to do a side by side comparison to answer that;) Thanks for asking!

@frankbeckman2663 Год назад

Have them send you a PSG9080

@KissAnalog Год назад

Thanks for the suggestion! I asked and it is on the way;) Can't wait!!

@notquitecopacetic Год назад

LOL Junctek. They should at least call themselves, Usablrek.

@KissAnalog Год назад

LOL ;)

@jstro-hobbytech Год назад

Sweet for free. I suspect something is wrong with it

@KissAnalog Год назад

Free is great - if its worthwhile;) Why do you suspect something is wrong with it?

@jstro-hobbytech Год назад

@@KissAnalog yeah. Mine is almost identical but a different brand and without the cheesy decals. That aside, my bnc connectors don't bend like that. I checked the other day. Mine cost alot more too. I forgot to add I bought mine a year ago and can't find a review for it.