Products > Test Equipment
New bench scope - Fnirsi 1014D, 7", 1GSa/s
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tunk:
No expert, but I think I rather would have an Owon or Hantek handheld.
You could also look into if your PC sound card could do the job.
And if you want to learn about scopes, this may be a good/cheaper starting point:
https://www.eevblog.com/forum/testgear/new-toy()-scope-dso154pro-1ch-claimed-40mss/
donwulff:
I should probably emphasize in wherever that the FNIRSI (et al.) has terrible sensitivity, and is unsuitable for most signal integrity uses. In keeping with management systems, I like to describe it as "indicator". That said, the ADC is 8-bit ("Effective Number of Bits: 7.5") so in the right range you could have fairly good resolution (like, what can your cables and probes handle anyway?).

Indeed the FNIRSI's strongest point must be the price, and in EU anything which has a price over 150 € before taxes needs to be declared & taxes paid by the buyer (unless the seller holds to their agreement), which adds to the cost & effort. They can also be ran from USB power pack, so whether you're looking for hobbyist scope for limited use, a throwaway for the road, or one for experimenting and programming, it's worth giving a consideration. Just be aware of the limitations. It also seems to be something of a religion with plenty of "Thou shalt not buy a FNIRSI" people, so take that into consideration too ;)

Unless you absolutely need the signal generator or the benchtop form-factor, 1013D may be a better choice, with currently working open firmware. I'm still working on the 1014D firmware, but need to get other things done & been bit under the weather, hopefully I'll have more time next month (Plus some of the components from China still haven't arrived). The firmware modified from @pcprogrammer's 1013D is booting & initializes main devices, but it's not useful quite yet. Signal generator is low priority for me. The stock firmware works well enough though, if one wants to just use it and not experiment with things.
Postal2:
Hello. I bought FNIRSI-1014D and could not use it because bad. I made some improvements and now I can use it. Need 2 ferrite beads in power section, need switch ground to connectors and take out ac/dc switch. See photo and do accordingly.
donwulff:
It seems the DC-bypass opto-switches have been intentionally shorted close, on the side of the lighter/khaki AC-coupling capacitor. This will of course take out the ability to AC-couple, but it's a good idea if AC-coupling is needed, because the opto-switch can reduce its frequency-bandwidth (Similar to the idea of the additional switch for reducing the resistance I've yet to try *cough*). The common ground of the probes is improved with a kind of ground-bar; the accompanying instructions of the scope indeed warns the foils between the probes may burn out if grounded to different potentials, so this seems like a great idea as well.

I can't spot the ferrite beads though, do they just go around the incoming USB power leads?




DOS2C10:
In other news I got the Hantek DSO2C10 to compare & see what all the hubbub is about and the price came down a bit. Since it's been pushed on this thread, a few quick notes before I get it for more of a spin. First it took 2 months to arrive, which may be record longest of any orders I've made. In the past I've had to fight with sellers over the customs taxes for items with base cost over 150 EUR, but it seems AliExpress just deducts them from the price, and you have to do the paperwork (Tariff code 90302000 for Oscilloscopes and oscillographs) and pay the taxes yourself.

The scope itself has more plastic feel to me, but that's subjective. Probably due to the heavy ventilation on the case, which also means that avoid dust and moisture, this isn't something to lug around on the field! The Ext Trig/Gen Out connector is indeed soldered on, while the product description gives the impression DSO2C10 model would lack it. According to other posts some other Analog Wave Generator components are NOT populated, it does seem to work for me with just arrived scope. A notable warning is it indeed comes with a single probe, which is odd choice for a dual-channel oscilloscope, so you'll probably just end up having to buy new ones, which adds quite a bit to total cost for comparison purposes. It has two USB ports (Type A and Type B for both client/host), but can only be powered by the AC lead. The scope however now comes with 1.0.3.0.0(230327.00) firmware, and the latest downloadable firmware on Hantek site is 20221028.

The upgrade instructions at https://www.eevblog.com/forum/testgear/new-hantek-dso2x1x-models/msg3559217/#msg3559217 seem to already mention the new firmware, and it turns out using the UPK on that link you don't need to change the firmware at all, just run the UPK to change the model. Multiple UPK's can be on USB at once, just select Utility button, F3 Update, Menu scroll to right UPK, press the scrollbar & then confirm with F3 Update - yeah what a weird sequence. Using the Backup Builder which is hidden at the end of the FAQ before update stuck at 35% and then just rebooted, but the backup appears to be more or less complete.

Edits: Single probe is PP-150 but actually only rated only 100MHz so wouldn't work with full bw anyway, new firmware, latest upgrade instructions.
gargamel777:
Hello, my first post here.

I just purchased my first scope FNIRSI 1014D. Tested it, works ok.

Then I mistakenly connected 12V barrel  jack to it. Original is powered from 5V, but uses same barrel jack as most 9V -12V equipment. So my mistake and now wouldn't power on. I can hear relay click inside when press power button.

Thank you for any advice, before I break the thing apart?

Rok
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