Hantek 6254BD 4-CH Oscilloscope with AWG 250Mhz 1GSa/s 8-pc set

This is not to be compared with a $20,000 Keysight unit, but for hobby or light use on the service benchtop, it is quite useful. I don't like additional devices/instruments cluttering my desk - so I'd much prefer to have a window in a monitor. The software bundled with the scope generally serves its purpose. The trace on the screen updates very quickly, with very little "lag" between the hardware scope and the visible trace. There's a few quirks. For example, creating a marker ("cursor") lets you view the voltage/time information, but this appears on the status-bar instead of in the reticule display. You have to just go through the menus, to see what all the functions are, because they don't always live in the expected location. The decoding function (accessed from the "trigger" selection), is generally effective: I tested it on UART and I2C. Hardware: we have to be realistic about the capability of this oscilloscope. At maximum sampling rate of 1.25 GHz (on only one channel), this is only 5 points per waveform cycle at 250 MHz - the rated frequency of the oscilloscope. Realistically, this is only enough to say "yes, there is a waveform" and to count the frequency: not to do so much detailed analysis. For square waves, the realistic maximum usable frequency is closer to 10 MHz. Again, you can view a data signal at this level, maybe even decode the bits, but not visualize the exact pulse edges. Your waveform probably has to be closer to 1 MHz to see this level of detail. The function generator is a nice additional feature. The stated maximum frequency is 75 MHz, but the waveform does not look great on this frequency. Since this is my only oscilloscope at the moment, I cannot tell if this is the waveform or oscilloscope at issue. Maximum amplitude is 3.5 Vpp, and multiple waveform types are supported. If you intend to automate acquisiton on this oscilloscope, keep in mind that you will be in for some work. The "OpenHantek" does not support this model yet (with no timeframe for support). Provided with the oscilloscope software is an SDK, with .dll files and libraries written for MS Visual C++. The documentation for this is not great, so you will need to have a good grasp on C++ in order to decipher their example codes and create a working application. There does not appear to be any support for Linux at this moment.

The device driver won't load in Windows 11 and Hantek have no plans to update their USB driver. There is apparently a work around which involves disabling Windows 11 security hmmm!! As a good value 4 channel scope it is fine for use with an old PC running Windows 10 and it does work on a 10 year old laptop!

I am sorry to write a poor review. This scope is a disappointment ! The price sounds good for 1 GHz sampling, but the bandwidth is barely 1 MHz, not 250 MHz as advertised. A 10 MHz square wave @ 500ns/div looks totally corrupted. See attached picture. (False advertising !!!) There is no win11 driver. I keep asking tech support for win 11, they keep steering me to some bogus drivers that do not work with win 11. Bottom line, save yourself some time ! Don't buy and return like I do.

We have contact the support team and received all the instructions need + a new firmware with a lot of new funcionalities - for free! It works fine and have a very good cost/benefit relation.

Funciona bastante bien