I was thinking to buy this oscilloscope but this recording issue put me off a bit. It sounds promising however that the FW update seems to fix the problem, but it seems very strange that they don’t make it available on their website. Perhaps they still work on validating the firmware before they make it officially available. Do you still feel confident that the FW update fixed the problem completely?

​@@Utube2Itube Yes, I am quite confident this issue is gone. It used to be very easy to reproduce just in a few seconds as you can see in the video. Unfortunately other users who had this problem remained quiet about their results, but I have a feeling they would have complained has it not been solved. You are right, it is not available on the wesite, but I think the reason for that it is not for all devices, only the ones having this issue. Also, it seems only new FW updates for the CPU are ever published but not the FPGA chip. Meanwhile there was an update from a buyer in Swisserland about a new FPGA FW that he found on his freshly bought scope. He was kind enough to upload it to David Alfa's Google Drive Folder. drive.google.com/drive/folders/1Tqk8YbL_M3S0vtk7h_cZ-01U2idIaqqx I have already tested this version, 3204. It performs well on my unit. So, while the FW is not published on the website, it looks like newly manufactured devices are shipping with a new FPGA version that has the above fix incorporated.

My scope also has this problem, but when set to low memory depth and high sample rate (250GSa/s or higher). Also, these spikes come in a train of them, periodically. It seems that those spikes do not allow the scope to stabilize the waveform on screen. Above 9 MHz, the oscilloscope is unusable. Even new versions of firmware did not solved the problem.

I am going to buy and sell scope, and was thinking of getting this model until I read your comment. I 110% agree. despite the fact that it is pretty cheap and a have a lot of extra functions ,I’ve been seeing a lot of negative videos and l reviews about the scope having multiple glitches and issues. So I agree, but Can you recommend me a better scope please?

Couldn´t agree more sir!

That is an interesting observation. Could you describe the exact measuring scenario, so I can try mine? What device are you measuring? What are your connections? Scope settings? Is the signal gen on or off? Is the noise on a well defined frequency or all over? What type of reaction do you get on the receiver? How does it process the signal? I don't have a spectrum analyser, but maybe I can find something poking around with HAM receivers. I haven't opened mine, but I remember from teardown videos, that the electronics are fully shielded in a metal case all around, so there shouldn't be any RF noise coming from or going into the scope. Maybe through the connected leads? Have you checked that the scope is properly grounded?

Hi same here. Testing an RF amp.

Don't give up yet, it took them 2 months to fix my issue and there was no feedback either. Their customer support is not the best. Be nice to the support, they are not the people responsible for the problems. However, you must also understand, this is a cheap scope. It might be that it is not suitable for your needs. If you can afford a Tektronix, you should get that. For me it is good enough, but I spent months researching the right device. The handheld scopes are childrens toys, not worth the price. Fnirsi bench scope is a joke. If I had listened to my heart I would have bought a Rigol, but they start above 400EUR, I could not afford it. So this Hantek is an acceptable compromise for me. Tektronix is out of my league.

Thank you for your message. I've always been super nice with the tech support guys. After almost two months, however, I can say that if it had not been for my insistence I would not have even had the latest firmware update file, which, however, has not improved the situation. Having known before that this oscilloscope has trigger problems with signals below 1 Volt, I would certainly have taken an entry level of a more serious brand.

Hey man, do you get any help of them?

@@hjuanguilherme106 Their after-sale support sucks. They just sent me the latest firmware update file, then they disappeared. I am still waiting for their reply to my last e-mail. My problem is still there, can't properly see signals below 0.5 Vpp and the function generator is a toy, the waveforms have poor resolution for small signals. Does this company seem professional to you?

It is ok if you want to quickly check if there is some communication there. You can't see more than 20 chars (or less) because when in "decode" mode only 4k points are stored.

Sorry , no comprende

From Banggood, Czech warehouse

@@hantekdso2d103 I wondered why it was so much cheaper there. I wanted to order from there too. Users on the forums write that there is already unofficial firmware released on January 5

​@@andrzejm7246 The scope has a Flash Deal on Banggood but I don't think it has anything to do with it. First, the device arrived in immaculate condition in the factory sealed box. Second, other users have this issue too and they purchased from Ali. Hantek uses these channels to sell their products. Believe me, BG is making a profit over the wholesale price. I have also bought other products from BG and also in Flash Deals, all arrived in factory sealed boxes. No issues whatsoever. So if you live in the EU, I recommend BG, they have good prices, brand new products, ship fast from within the EU and duty free. I have seen posts about the 0105 SW, it fixes an issue with the GND coupling offset. As I can see Hantek is working hard on fixing issues reported, they release patches often. However at the moment we don't know if this is a hardware or software problem.