Products > Test Equipment
GW INSTEK GDS-1022 Hardware Hack: 25 MHz -> 100 MHz?
(1/4) > >>
cyberfuzzy:
Hi,

The bandwidth of the GW INSTEK GDS-1022 DSO is limited to 25 MHz. The top model of the GDS-1000 series is the GDS-1102 with a bandwidth of 100 MHz.

Does anyone know if all of the GDS-1000 series scopes have the same hardware?

I was wondering if it is possible to do a hardware hack to upgrade the bandwidth of the GDS-1022 up to 100 MHz.

In a German forum Mr. Thilo M. wrote that he updated the bandwidth of a 60 MHz scope to 100 MHz by changing some DIP-switches inside. You can find the discussion here: http://www.mikrocontroller.net/topic/107317#1006671

So if that is true - does anyone know how to set the DIP-switches to upgrade it to 100 MHz?

And would the hack depend of the scope's firmware version?

Thanks’ for your answers.

Cyberfuzzy
ElektronikLabor:
DIP-switch? It sounds too good to be true.
Why don't you just open the scope and look inside?
cyberfuzzy:

--- Quote from: medvedev on December 17, 2014, 08:08:11 pm ---DIP-switch? It sounds too good to be true.
Why don't you just open the scope and look inside?

--- End quote ---

Yes, that would be the next thing to do. I just wanted to know if anybody already has experience with it.
cyberfuzzy:
I opened it up and I couldn't find any DIP-switches. But as you can see in the attached image there is a 0 ohm resistor at 1022.

I thought that's it. But after moving it to 1102 nothing changed. The bandwidth is still limited to 25 MHz.

It would be interesting to see a picture of the 0 ohm bridges of a real GDS-1102. Maybe there are more resistors on A, B, C or D?
cyberfuzzy:
I tried all 16 combinations with 0 ohm resistors at A, B, C and D. But that didn't change anything.

Any other ideas?
Navigation
Message Index
Next page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod