FNIRSI DPOX180H Oscilloscope Review: Does It Truly Deliver 180 MHz?

In this video, I put the FNIRSI DPOX180H digital oscilloscope to the test. Many similar size small digital oscilloscopes promise high bandwidths but fail to deliver - will this one be any different?
Watch to find out if it truly meets the 180 MHz claim!
www.banggood.c...

[@lohikarhu734]

Indeed, nice to see single shot captures, some nice, fast pulse to see risetime

[@recursoseninternet]

I have seen in some videos that this model has serious precision problems in measurements. There is even a video where it tests measuring a 1.5V battery and this device shows a significant error in DC coupling, compared to another cheap handheld oscilloscope and a multimeter. This is concerning.

[@EngineeringAllAround]

FNIRSI DPOX180H uses equivalent sample method (stroboscopic mode), it can build beautiful pictures for stationary periodic signals only. What you should do is check it with SINGLE avalanche pulse (for example) in SINGLE trigger mode and compare to the SAME captured pulse on true high sample rate oscilloscope.

[@sumuduasiri]

Thanks very much for your video. Can you please show how to capture rising edge and falling edge using this oscilloscope? I tried but couldn't success.

[@bzoli5706]

Press the TRIG button, then the down arrow and finally the MOD/OK. And close the menue with the TRIG button.

[@alklapaxida850]

when you go to banggood you banged good..

[@ivolol]

If you are feeding a 3V input, and it claims 180Mhz bandwidth, then we should find a 3 * 0.707 = 2.12V measurement at that. Instead it occurs at ~210Mhz. Not bad for Chinese handheld.

[@hundredwaves8459]

It writes Vpp, look carefully. You multiply Vpp with 0.707 when you want to find Vrms.

[@ivolol]

​​@@hundredwaves8459this is true, but incidental . The -3dB point of a signal is also when it has reduced by ~0.707 ratio