Products > Test Equipment

New bench scope - Fnirsi 1014D, 7", 1GSa/s

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MrAl:

--- Quote from: pcprogrammer on November 23, 2022, 06:16:54 am ---
--- Quote from: MrAl on November 23, 2022, 04:24:42 am ---They try to catch people off guard thinking it is a much cheaper scope than the other 100Mhz units, what balls they have.  Maybe they should be reported.

--- End quote ---

Yeah that is what they do and they don't give a crap if it is reported.


--- Quote from: MrAl on November 23, 2022, 04:24:42 am ---The function generator is strange too, it 'loads' very easy its internal impedance must be high.

--- End quote ---

The schematics can be found here: https://github.com/pecostm32/FNIRSI-1013D-1014D-Hack/tree/main/Schematics/1014D


--- Quote from: MrAl on November 23, 2022, 04:24:42 am ---Some controls are easy to use but some other controls are hard to use.

--- End quote ---

It starts up relatively quick and responds rather well. Better then the Hantek DSO2D10 I also have. The latter actually has a better front end and can do 1 channel at 1GSa/s.


--- Quote from: MrAl on November 23, 2022, 04:24:42 am ---He paid $140 USD for it, maybe it is worth that much but it would have been better not to lie about it.

--- End quote ---

Not a bad price. Mine was ~170 euro.

--- End quote ---

Thanks for the link to the schematic i didnt know they published that.
I'll have to take a look and see what is up with this thing.

MrAl:

--- Quote from: Fungus on November 23, 2022, 06:42:24 am ---
--- Quote from: pcprogrammer on November 23, 2022, 06:16:54 am ---
--- Quote from: MrAl on November 23, 2022, 04:24:42 am ---They try to catch people off guard thinking it is a much cheaper scope than the other 100Mhz units, what balls they have.  Maybe they should be reported.

--- End quote ---

Yeah that is what they do and they don't give a crap if it is reported.

--- End quote ---

Who you gonna "report" it to?

--- End quote ---

I will surely tell their parents on them (ha ha).

I was thinking maybe the sites that they sell them on.  Not sure if the BBB would help or not.
I would not want to see them stop selling though, just being more honest about the specs.

MrAl:

--- Quote from: pcprogrammer on November 23, 2022, 06:52:54 am ---
--- Quote from: Fungus on November 23, 2022, 06:42:24 am ---Who you gonna "report" it to?

--- End quote ---

There is such a thing as false advertising. Not sure if you will win when you start a dispute on Aliexpress over this, when bought there of course, and hiring a lawyer to sue might bankrupt you :-DD

--- End quote ---

He bought his on evilbay.  Not sure if he can get a discount yet or not i think he will try though.

It amazes me how much scopes have come down though in the past 20 years.  Back then a 20MHz would cost about $400 USD and that was for a bottom line cheapie CRT beast.

I once used a 50MHz true phosphor type CRT storage scope way back in the 1970's.  It was a huge thing the size of a small refrigerator.  It was around $3000 USD i think back then.  Almost bought one at Princeton too back in the 1980's but it was so big i didnt want to have that laying around.

pcprogrammer:

--- Quote from: MrAl on November 23, 2022, 11:52:36 am ---Thanks for the link to the schematic i didnt know they published that.

--- End quote ---

They didn't. I reversed engineered it. Only thing I did not do is measure the capacitors.

A lot of the software in this thing is also the same as in the 1013D, which I reverse engineered and wrote new firmware for.

The root of the repository the schematics are in, holds a lot of information about both the scopes.

MrAl:

--- Quote from: pcprogrammer on November 23, 2022, 12:03:22 pm ---
--- Quote from: MrAl on November 23, 2022, 11:52:36 am ---Thanks for the link to the schematic i didnt know they published that.

--- End quote ---

They didn't. I reversed engineered it. Only thing I did not do is measure the capacitors.

A lot of the software in this thing is also the same as in the 1013D, which I reverse engineered and wrote new firmware for.

The root of the repository the schematics are in, holds a lot of information about both the scopes.

--- End quote ---

Hi,

Oh geeze, that must have been one hell of an undertaking, how did you do that?  Did you have to follow all the traces around the boards?

I just did one for a special kind of relay that had an internal circuit and even that was a pain with one IC chip one transistor and a bunch of resistors, diodes, and caps.  Didnt like doing it either but wanted to know for sure how that thing worked.
Yes i found the small caps unmarked too and probably have to unsolder them to check the values.

I'll check out the other stuff too on that site thanks a bunch for all the work you did.

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