Відео

there's a squelch problem on uhf not shutting off fast enough. it makes listening to local police and fire not very good. my mla30+ seems to work fine on am and sw.

Apart from single(autool dm303) vs this dual channel , what are your thought comparing this to autool dm 303 ?

Looks interesting! I'm more of a beginner and I currently have a Kaiweets ST600x, which works OK, I often use it for testing voltages and battery and one thing I've noticed is if the voltage is very low, the multimeter has a hard time measuring it and will often incorrectly output 0v, which can't be true since I'm able to recharge the battery. If the voltage was truly at 0v it would not be able to be charged again. The only other meter I have is a DT-830B which is complete garbage and completely inaccurate. I have used Fnirsi products before, I have the FNB48P USB meter and that works great, it is far better than my Keweisi one, it is very useful. Would you still recommend the DMT-99 or would you say there's a better meter in this price range? (£25-35)? Thanks!

What about link to first part in description?))

Thanks for this video. What I notice is the description on the Silicon chip for adjusting soft muting. We have been trying to determine to what extent Hanrongda has sought to reduce soft muting. Eliminating it altogether would be preferable.

Great video 👍..very detail n pros & cons. Considering between this 2c23T & the ZT703s.. Quite amazing boot up speed👍 For my use 2C23T fit me well at 10Mhz hopefully their firmware could fix most of the cons u mentioned. ❤thanks for making this video

Knob ! Good solution but I think cutting an IF trimming tool could be an option.. It is a shame that manufactures forget the interface to the 300 lb gorilla as AVE would say. Spending a little more time and money on a quality knob makes for a more satisfying experience. Cracked screen, looks like that is Polystyrene , the Fluke would be Polycarbonate which is more expensive but resistant to impact.

the internals aren't so well done. not at all reassuring. looks like it's just waiting to break.

Great to watch an expert who knows what they are doing. I have always been interested but only now have the time.

Great video mate! I plan to re-watch it again...I did like the 320, and now I think I like this radio even better! I'm nowhere as skilled a tech as you, but I like to watch videos like this. I like the twin ferrite bar antennas. Makes the external antenna inputs look less gimmicky IMHO. Also a better speaker. 2 displays are also a plus. I don't need a flashlight. Some people will disagree. I wonder how long the included batteries last with 2 displays? I may soon find out! Thanks again...keep up the great work...😎

most detailed review

Ver nice Review .

I tested a couple of units of this model FNIRSI DSO-TC3. I was more interested in the values of the parameters than the functions. All of them presented a big problem with the measure of the volts. I made a simple volt divisor and tested it with two different connections: a Voltmeter and an Oscilloscope. In both cases, the low impedance of the device influences the measure, and the voltage is wrong. When measuring with a DSO-TC3 Voltmeter, the result is the same as measuring with a proper voltmeter with a 2K Ohms resistance in parallel. When measuring with a DSO-TC3 oscilloscope, the result is the same as measuring with a proper voltmeter with a 1M Ohms resistance in parallel. They don't have any software compensation and display the wrong measure. See the attached file for the results vs. the theory. I contacted FNIRSI at the beginning of May 2024 (via email and WhatsApp). The aftersales department knows nothing about the equipment's functioning or electronics in general (they didn't know what a voltage divisor is, even after I sent the drawings). They tried to ignore the situation, and they asked me to pay attention to their website in the future in case they make a firmware update. Nothing happened until today, 17 Jun 2024. Previously, I sent the same complaints to the internet shop I purchased (in Taobao, China), and they told me the issue was a one-device issue and changed it for me. After verifying similar output, I found this is a design problem, and the manufacturer is trying to ignore it. Note that their specification already announced an input resistance of 1MOhms. What is surprising is the value when using the Voltmeter and the fact they have no correction for the displayed value. (I am using the most updated firmware version until June 2024.) On the other hand, if you want to use the signal generator simultaneously with the Oscilloscope, it will deliver a standard pulse wave of 10,000 Hz, three v, without possible modifications. I am talking from memory; I may get the frequency wrong.

I tested a couple of units of this model FNIRSI DSO-TC3. I was more interested in the values of the parameters than the functions. All of them presented a big problem with the measure of the volts. I made a simple volt divisor and tested it with two different connections: a Voltmeter and an Oscilloscope. In both cases, the low impedance of the device influences the measure, and the voltage is wrong. When measuring with a DSO-TC3 Voltmeter, the result is the same as measuring with a proper voltmeter with a 2K Ohms resistance in parallel. When measuring with a DSO-TC3 oscilloscope, the result is the same as measuring with a proper voltmeter with a 1M Ohms resistance in parallel. They don't have any software compensation and display the wrong measure. See the attached file for the results vs. the theory. I contacted FNIRSI at the beginning of May 2024 (via email and WhatsApp). The aftersales department knows nothing about the equipment's functioning or electronics in general (they didn't know what a voltage divisor is, even after I sent the drawings). They tried to ignore the situation, and they asked me to pay attention to their website in the future in case they make a firmware update. Nothing happened until today, 17 Jun 2024. Previously, I sent the same complaints to the internet shop I purchased (in Taobao, China), and they told me the issue was a one-device issue and changed it for me. After verifying similar output, I found this is a design problem, and the manufacturer is trying to ignore it. Note that their specification already announced an input resistance of 1MOhms. What is surprising is the value when using the Voltmeter and the fact they have no correction for the displayed value. (I am using the most updated firmware version until June 2024.) On the other hand, if you want to use the signal generator simultaneously with the Oscilloscope, it will deliver a standard pulse wave of 10,000 Hz, three v, without possible modifications. I am talking from memory; I may get the frequency wrong.

Skipped the most important part... Battery replacement ... how ? It seems the other brands have the battery permanently in there. Was this different ?

Это кубик магнита чтоб вешать радио на холодильник. У меня есть такой магнит в фонаре. Удобно

Is there xy mode ?

I just received my Raddy RF320 radio. Being VERY new to SWL Al the buttons are as foreign as the one who wrote the instructions. When a foreigner tries to write an English text they write the meanings and descriptions in the manner that their home speech directs them. They do not know and understand the nuances of the English language. An American who speaks the manufacturers language should write the manuals. Particularly in instances such as this, where the product is not designed for the experienced SW Listener/operator who knows about band designations and all the symbols on these radios. It took me over an hour to figure out how to set my clock on the Raddy. It is fun when learning is not a brain swelling process. Tedium is not my favorite cuppa tea. Eventually I will figure this bugger out.

Thank you for your info about how to calibration !!

I'm very disappointed with one feature of this tester and that is the Component Tester, I have a bunch of old Germanium transistors and this instrument doesn't report them as transistors but either as two diodes or two resistors, my long standing Multi-function Tester TC1, correctly identifies them as functioning PNP transistors.

Excellent work, indeed. Many thanks for the detailed explanations. Oh, and I don't have a dodgy knob, yet....haha... ;-) PS...i can't find your DIY mag-loop antenna video....did you make it yet, or am i missing it? Thanks.

Tu que coño haces alli?

For me the range scale bar is always showing zero:(( Althought the measurements are succesful. Any solution ideas?

I love my Fnirsi HS-02A. Iron + 1 tip is like $30 USD. I got the package with the iron and 6 tips for around $65 USD.

Thanks, but I purchased this Oscilloscope with 300AED then after one week I sold it with only 100AED because the battery drains very quickly in around 3 minutes, and the scan is very slow !!

Looks identical to the FNIRSI HS-01. I have the FNIRSI version and it's great

Does anyone know if this would this be useful in repairing old transistor radios and modern laptops?I'm just a hobbyist who wants to try out a cheap scope to see if it helps.Thanks

Is it possible to change the temp units from C to F?

They put a weight in it to make it heavier so it doesn't feel so cheap.

There are warnings about keeping battery level high for accuracy especially using scope.Kunkune UK have an offer on at £59 at the moment,if you are a new user,sign up for an extra 20% discount,just got mine for £47 and can be found even cheaper from time to time..

I know a lot about the A320, if anyone has specific questions, they can ask me.

Brilliant

Someone knows if is posible to use XY funtion conected to a computer? USB port is isolated? Thanks in Advance.

Dear sir, I would like to use FNIRSI 2C23T for component test , but i don't understand , please help me thank you very much

Amazing video, it helped me a lot, changing the fuse

Just now I got this 2C23T but one thing I found: the volt value that write on oscilloscope screen less than input but the drawing is correct , input is 5.000 V and the multimeter mode is correct and drawing wave on oscilloscope is correct but the value write on oscilloscope is 4.800 is there a way to calibration ?

What about battery life time work?

Your channel is pure gold. Hope it keeps growing. I look forward to seeing more of your projects. It would also be fantastic if you could provide a electrician/electronics technician device benchmark table and a reliability/durability rating. I would definitely trust and rely on any information you share in those areas.

Very good intel and excellent video

Hi, is the Oscilloscope slow charging? And why does the battery drain even I'm not using it or even I turn it off by pressing the power button?

já cheguei dando uma voadora no like, você conseguiu me convenser a comprar este ráido, parabéns pelo excelente trabalho, que DEUS continue lhe abençoando todos os dias.

2C23T is cheaper and more reliable, what do you think? ✌️🇨🇱

Can the function generator output voltage be adjusted down to the milli-volt range like 0.0025 v and 1kh frequency?

Incredible video that you've done here. And thank you much. It really caught my eye when I recognized it as the same radio that I purchased a couple months ago. I must say that I did not open my radio but I am very impressed with how well I like the radio. It is packed with some amazing features for no more than its size. Soon I'm going to build a better shortwave antenna externally from my home. I will probably just use an alligator clip to connect to the telescopic antenna and then I will probably draw the ground off of one of the auxiliary jacks . Again thank you for your video and I will share it. I will also endorsed this radio as being an excellent choice for a prepper radio and for its value. You did a good job in showing that this radio is well built. Again thank you and I will be watching more of your videos.

I got mine yesterday. So far it's looking to be perfect for hobby electronics use. As far as using with high voltage/current, I wouldn't use any random named Chinese meters for that. That's what my Fluke is for.

This oscilloscope can't display random signals on high frequencies. It's a scam. Test it with FM signals. See the Kerry Wong's video.

Why didn't FNIRSI catch the big mistake on the front, it says "FUNCATION" Wow!

nice

素晴らしい　解説をありがとう　 そしてcasioを使っていて日本人として、とてもうれしいです　(≧∀≦)

Hi, I’m considering purchasing one of these, but was wondering if the one you have still works to see how well it lasts. Could you give an update on that?