Products > Test Equipment
New toy(?) scope Fnirsi DPOX180H, claimed 180MHz/500MSps (May 2023)
ptluis:
--- Quote from: Aldo22 on September 24, 2023, 04:48:18 pm ---
--- Quote from: ptluis on September 24, 2023, 04:21:59 pm ---you won't, but keep in mind that the zeeweii doesn't have a 20MHz bandwidth option, it's always at full bandwidth.
--- End quote ---
The good thing is: You learn to make your own low-pass filters for the Zeeweii. For a penny and an egg. ;)
--- End quote ---
exactly and you get a better scope, with a little less bandwidth but more functional e precise , and 3x battery life! at least with the units I've got.
chronos42:
--- Quote from: ptluis on September 24, 2023, 04:32:34 pm ---A little challenge for all owners of fnirsi like myself :palm:
set FG to 1KHz Square Wave, 2 Vpp, 50% duty
press Auto
Press H+ until H=1us (top indicator) watch the glitch
Keep pressing H+ until H=5ns watch the amazing and wonderfull waveform :palm:
Fnirsi, fnirsi, naughty and wild boy!
Bellow 32KHz is useless, we can't trust anymore on the displayed image if we zoom in (not zoom button)
--- End quote ---
I found the same problem and had informed FNIRSI. They are aware of this problem and they work on an update. Let's see if something happens....
But all in all the DPOX is not as bad as some owner blame it here. it has some bugs, yes. But it is a usefull toy... ehm instrument for the price. I still like it for what it is. And keep in mind: For this price you cannot await a lab scope. It actually has a 180MHz bandwith (with one active channel only) and the digital phosphor is actually working. The AC lo frequency rolloff is not a big problem for me. Not nice, but also not a big issue, only in rare cases.
ptluis:
--- Quote from: chronos42 on September 24, 2023, 05:45:56 pm ---
--- Quote from: ptluis on September 24, 2023, 04:32:34 pm ---A little challenge for all owners of fnirsi like myself :palm:
set FG to 1KHz Square Wave, 2 Vpp, 50% duty
press Auto
Press H+ until H=1us (top indicator) watch the glitch
Keep pressing H+ until H=5ns watch the amazing and wonderfull waveform :palm:
Fnirsi, fnirsi, naughty and wild boy!
Bellow 32KHz is useless, we can't trust anymore on the displayed image if we zoom in (not zoom button)
--- End quote ---
I found the same problem and had informed FNIRSI. They are aware of this problem and they work on an update. Let's see if something happens....
But all in all the DPOX is not as bad as some owner blame it here. it has some bugs, yes. But it is a usefull toy... ehm instrument for the price. I still like it for what it is. And keep in mind: For this price you cannot await a lab scope. It actually has a 180MHz bandwith (with one active channel only) and the digital phosphor is actually working. The AC lo frequency rolloff is not a big problem for me. Not nice, but also not a big issue, only in rare cases.
--- End quote ---
I know, but if we don't press them they don't care, the more we talk about the problems the more they care otherwise sales drop :)
Serhii74:
I agree with you.
This oscilloscope helped me earn an additional $1,500 in 1.5 months.
Because it allows me to repair devices that I’m afraid to test with a $15k oscilloscope.
For the money, DPOX180H is quite good.
battlecoder:
This is going to sounds silly, but I wish the "phosphor" display mode could be turned off. I'm not even asking for "peak detect" or "high resolution" acquisition modes, but glitches and non-recurrent peaks are literally invisible with the "phosphor" treatment.
EDIT: With a firmware update to V30 the waveform looks a lot clearer. I'm keeping this post, however, for anyone who might be having a capture that looks *this* faint.
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