Products > Test Equipment
Hantek - Tekway - DSO hack - get 200MHz bw for free
rugo100:
Hi tinhead,
I am fighting to find UART (Rx,Tx) pins on my Voltcraft DSO-1102D 1202D but unfortunately I can not find them on the PCB.
Would you please help me if you have information about this?
thanks
rugo100:
sorry I miss-spelled :palm: the type rightly is DSO-1202D
rugo100:
I just found the uart pins. See picture
Thx
whynot:
I have the DSO5201P hantek. I haven't updated firmware or anything since I bought it in late 2018 or early 2019. My unit has 40k max memory according to the specs, but I need information on whether it's possible to gain more via fw hack or perhaps hardware. I have found the memory to be the limit factor for me, moreso than frequency.
Any information will be greatly appreciated.
darklife:
I finally got around to the hack on my 5072P to unlock 200MHz.
My scope version
SW Ver 3.40.0 200929.0
HW Ver 1010xffff8108
SN T1G/138 055983
It was a pain to get the DSO-BW-Changer program to work since I didn't have a Windows computer available I threw
an old copy of Win 7 on a junk laptop and it kept throwing the error MSVCR100.DLL not found, so I borrowed someone
elses computer with Win 10 on it only to find the same issue along with the driver needing the newer Win 10 version.
After struggling to install various versions of visual c++ redistributable which is needed for that DLL file I finally found
a bundled install that contains all the various versions throughout the years and finally after waiting on that I was
able to successfully run DSO-BW-Changer and set my scope to 200MHz through USB cable.
Upon power reset it does appear to be working as I am able to measure a toy FM broadcast transmitter both with FFT
and it's waveform and frequency measurement which it couldn't do before from factory at 70MHz.
I did not update the firmware from hantek. I don't see any useful reason to do this as it seems to work fine with the 3.40.0
version mine already came with.
I have one question..
I read in some places that two capacitors need to be removed on the 5072P to correctly measure the higher frequencies?
Are there any tutorials online showing where they are located and is this actually necessary? I am curious what side
effect it will have leaving them in as-is. Would I still be able to measure square waves up to say 100MHz with the caps
still in place or will it round it all out to sine like a lpf? I don't own a signal generator that can do square above 20MHz to test
with.
Huge thanks for this thread!
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