Products > Test Equipment
Upgrading the Hantek DSO4072C and DS4104C oscilloscopes bandwidth up to 250MHz
rlohmann:
Sure, will be my pleasure to keep you and this thread updated! :)
And thank you again for all your helpful comments and information!
zoran:
I can confirm that the bandwidth hack really work. :-+
Today I hacked my Hantek DSO4104B and it has now -3 dB point at around 280 MHz. You can even observe signals beyond 300 MHz.
The upper limit is not exact as I used an old LSV-350 VHF Sweep generator. Still, it is very obvious that the input station of the oscilloscope permit signals higher than 250 MHz.
Microcheap gave us good information at the beginning post so I can only add minor remarks:
You can find information on how to open the oscilloscope at https://youtu.be/fxgJdKeOmlo
You have to pull the black power ON button cap from the outside before you open the oscilloscope. Use some cloth between pliers and plastic cap to prevent scratches.
Info on serial connector is at: https://youtu.be/fxgJdKeOmlo?t=1921
RX goes to TX of the USB-TTL converter
TX goes to RX of the USB-TTL converter
Ground goes to converters ground.
For the terminal emulator, you can also use Putty as it is available on all platforms.
The DSO4104B is almost perfect budget oscilloscope for basic or should I say classic tasks and it is nice that it can be even a little better now ;)
tom66:
I'm curious what that SATA cable goes to on the main board there? Does the unit have a disk drive?
zoran:
No, I don't think that SATA cable is for the disk.
They use SATA cable to connect the main board with I/O board at the back of the case that has network and USB sockets. At the back can be also mounted HDMI socket.
It is interesting to see a memory card slot located at the edge of the main board.
Microcheap:
--- Quote from: zoran on March 11, 2019, 10:03:55 pm ---I can confirm that the bandwidth hack really work. :-+
--- End quote ---
That's good to hear, thx for the confirmation zoran
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