Products > Test Equipment
New bench scope - Fnirsi 1014D, 7", 1GSa/s
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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