Author Topic: Hantek - Tekway - DSO hack - get 200MHz bw for free  (Read 1775735 times)

0 Members and 1 Guest are viewing this topic.

Offline RFman

  • Contributor
  • Posts: 36
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #300 on: March 07, 2011, 02:12:32 pm »
Tinhead, thanks for the resistor change information. Your attached trace photo shows the difference.

Was thinking that it maybe easier to add parallel resistors instead of replacing resistors to get the 200MHz resistor values. Lucky in that the 200MHz values are all lower than the values for 100MHz or 60MHz.

Input resistors (channels and ext trigger)

    200MHz - 22R 0.1%
    100MHz - 33R 0.1% Parallel with 66R 0.1%
     60MHz  - 33R 0.1% Parallel with 66R 0.1%

Compensation resistors (channels only)

    200MHz - 10R 0.1%
    100MHz - 12R 0.1% Parallel with 60R 0.1%
     60MHz  - 12R 0.1% Parallel with 60R 0.1%


OpAmp resistors (4 x per channel)

    200MHz - 280R 0.1%
    100MHz - 301R 0.1% Parallel with 4K 0.1%
     60MHz  - 365R 0.1% Parallel with 1.2K 0.1%

OpAmp arrays (2 x per channel)

    200MHz - 33R 1%
    100MHz - 39R 1% Parallel with 215R 1%
     60MHz  - 47R 1% Parallel with 111R 1%

Trigger stage

    200MHz - 82R 0.1%
    100MHz - 100R 0.1% Parallel with 455R 0.1%
     60MHz  - 100R 0.1% Parallel with 455R 0.1%

Problem is where can you purchase these resistor values in 0.1% and 1%? Do you know what physical size the SMD resistors are.

Tinhead, what equipment do you need to calibrate the oscilloscope when the above resistors have been changed. What is the procedure. Would the normal oscilloscope push button calibration do the job? I don't know much about what the calibration is other than you only have the power cable connected to calibrate.
 

Offline rf-loop

  • Super Contributor
  • ***
  • Posts: 3275
  • Country: cn
  • Born with DLL21 in hand
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #301 on: March 07, 2011, 02:50:44 pm »
Just arrived:

System status shows:

model: DSO5102B
serial T1G/008xxxxxx
soft version: 2.06.3 (110118.0)
hard version: 0x555583e8

First touch... better than expected. I know it is better than Rigol but... I did not expect so much. (yes price is different and it is maybe not very clever compare these.)



Example -3dB point well over 170MHz.. if reference is 1MHz and level 300mVp-p.  (yes I need later check my test lab accuracy.. maybe my HP old workhorse signal gen need careful "flatness calibration" over frequency band 100k to 2G .. I do not trust now...)  it looks like there (in hantek oscilloscope analog front end) is littlebit "M" shape freq response and it makes some special corner shape with fast rising pulse edge.. but... not bad.. but all this need now lot of work for tests.

Edit

« Last Edit: March 07, 2011, 03:37:48 pm by rf-loop »
If practice and theory is not equal it tells that used application of theory is wrong or the theory itself is wrong.
-
Harmony OS
 

Offline tinhead

  • Super Contributor
  • ***
  • Posts: 1922
  • Country: 00
    • If you like my hacks, send me a donation
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #302 on: March 07, 2011, 03:15:53 pm »
to add parallel resistors instead of replacing resistors to get the 200MHz resistor values. Problem is where can you purchase these resistor values in 0.1% and 1%?

bad idea, this will increase the caapacitance.

Do you know what physical size the SMD resistors are.
mouser is haveing alle of them,
22.1R 0.1% or 22R 1% in 0603
280R 0.1% in 0603
10R 0.1% in 0603
82R 1% or 82.5R 0.1% in 0603
33R x 4 1% array in 1206


what equipment do you need to calibrate the oscilloscope when the above resistors have been changed. What is the procedure. Would the normal oscilloscope push button calibration do the job? I don't know much about what the calibration is other than you only have the power cable connected to calibrate.

the one you don't have (400MHz analog or DSO to compare results, 1kHz to 250MHz square/sinus generator, good set of RG316 cables, active and passive probes) but at least a 1kHz and 10kHz signal generator with stable amplitude, true rms dmm to measure the amplitude
and some luck.

The compensation can be changed by the cap value (red marked), the measured amplitude must match the real signal amplitude (square and sinus),
you will of course have to wait at leat 30mins before the DSO would be warm enough and after each step (1 and 10kHz signal) do self-calibration
and compare results again.

Still, i do not recommend to play with compensation without knowledge about and good equipment. For sure you might have luck
and no compensation will be necessary, but i would not bet on that.
I don't want to be human! I want to see gamma rays, I want to hear X-rays, and I want to smell dark matter ...
I want to reach out with something other than these prehensile paws and feel the solar wind of a supernova flowing over me.
 

Offline tinhead

  • Super Contributor
  • ***
  • Posts: 1922
  • Country: 00
    • If you like my hacks, send me a donation
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #303 on: March 07, 2011, 03:24:08 pm »
Just arrived:

welcome in club!

but all this need now lot of work for tests.

true, you always very sceptic so you will definitely test 5x :)
I don't want to be human! I want to see gamma rays, I want to hear X-rays, and I want to smell dark matter ...
I want to reach out with something other than these prehensile paws and feel the solar wind of a supernova flowing over me.
 

Offline SoftwareSamurai

  • Regular Contributor
  • *
  • Posts: 170
  • Country: us
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #304 on: March 07, 2011, 03:44:38 pm »
Attached the official 2.6.3 for Tekway DST1102B, so you can update your scope to latest vfw version and add english language.

(Forgive me if you've already answered these before.)

Q1. Can I load v2.06.3 onto my Hantek 5102B?
Q2. What's the improvements in v2.06.3 from v2.06.2? (i.e. Is it worth upgrading?)
 

Offline rf-loop

  • Super Contributor
  • ***
  • Posts: 3275
  • Country: cn
  • Born with DLL21 in hand
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #305 on: March 07, 2011, 03:48:01 pm »

true, you always very sceptic so you will definitely test 5x :)

Yes, first I need check my calibration generators and sinewave generators calibration..

5x is not enough.

If test full specs temp range, humidity range, pressure range it need more... and also repeating so that can make some opinion about random variations... haha. (yes I do not...)
If practice and theory is not equal it tells that used application of theory is wrong or the theory itself is wrong.
-
Harmony OS
 

Offline tinhead

  • Super Contributor
  • ***
  • Posts: 1922
  • Country: 00
    • If you like my hacks, send me a donation
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #306 on: March 07, 2011, 03:51:45 pm »
Q1. Can I load v2.06.3 onto my Hantek 5102B?
no, you can't.
Once again, because of the hack protection the firmware is now per model, so each manufacturer and each model
firmwares are different (well the update scripts, if you decryt it and copy manally the DSO.exe and other evt. changed files then it will works for you on any DSO)

Q2. What's the improvements in v2.06.3 from v2.06.2? (i.e. Is it worth upgrading?)

more measurment pre-setups, pass/fail, digital filters, nice recording option and other things, but also some new bugs :)
They should be fixed very soon so maybe is a good idea to wait fir the new fw.

I did posted these Tekway fw's just because of the chinese fw version of "nukie's" DSO.
I don't want to be human! I want to see gamma rays, I want to hear X-rays, and I want to smell dark matter ...
I want to reach out with something other than these prehensile paws and feel the solar wind of a supernova flowing over me.
 

Offline tinhead

  • Super Contributor
  • ***
  • Posts: 1922
  • Country: 00
    • If you like my hacks, send me a donation
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #307 on: March 07, 2011, 03:54:27 pm »
5x is not enough.

If test full specs temp range, humidity range, pressure range it need more... and also repeating so that can make some opinion about random variations... haha. (yes I do not...)

hehe to be very honest i do check each every function and setting after each fw upgrade, HanTekway is doing great job improving
things but sometimes they creating more bugs than improvements :)
I don't want to be human! I want to see gamma rays, I want to hear X-rays, and I want to smell dark matter ...
I want to reach out with something other than these prehensile paws and feel the solar wind of a supernova flowing over me.
 

Offline gileadlin

  • Newbie
  • Posts: 1
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #308 on: March 07, 2011, 04:24:39 pm »
hi ,tinhead'
would you make a firmware for tekway1062B(version 2.06) to hack it to 200MHz?
 

Offline tinhead

  • Super Contributor
  • ***
  • Posts: 1922
  • Country: 00
    • If you like my hacks, send me a donation
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #309 on: March 07, 2011, 05:00:42 pm »
hi ,tinhead'
would you make a firmware for tekway1062B(version 2.06) to hack it to 200MHz?

no, why i should ? Read the whole thread and you will learn how to hack or create own hack.
I don't want to be human! I want to see gamma rays, I want to hear X-rays, and I want to smell dark matter ...
I want to reach out with something other than these prehensile paws and feel the solar wind of a supernova flowing over me.
 

Offline mirgo

  • Newbie
  • Posts: 2
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #310 on: March 07, 2011, 06:11:03 pm »
hi Mirgo,
Ni shi zhong guo ren ba ? ;D ( ::) Are you chinese ?  ;))

No sorry, I'm from germany and I did not register just to advertise for the chinese shop. I've been following this topic for some weeks now and I just wanted to give my advice for anybody that is afraid of ordering from china. I know you sell the hanteks from france too, but anybody may select his/her prefered source and there are trustworthy sources in china too (not all of them, but they exist).
 

Offline PsI-On

  • Contributor
  • Posts: 25
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #311 on: March 07, 2011, 07:05:21 pm »
I scanned the Chinese panel and replaced the characters with English.

I haven't tried it on for size yet, but it looks close!

-P
« Last Edit: March 07, 2011, 09:57:20 pm by PsI-On »
 

Offline tinhead

  • Super Contributor
  • ***
  • Posts: 1922
  • Country: 00
    • If you like my hacks, send me a donation
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #312 on: March 07, 2011, 07:31:33 pm »
yeah, looks like my org. panel (except 1 "kHz" which is on your version khz and Tekway org. version KHZ)
I don't want to be human! I want to see gamma rays, I want to hear X-rays, and I want to smell dark matter ...
I want to reach out with something other than these prehensile paws and feel the solar wind of a supernova flowing over me.
 

Offline bilko

  • Frequent Contributor
  • **
  • Posts: 405
  • Country: 00
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #313 on: March 07, 2011, 08:28:24 pm »
I scanned the Chinese panel and replaced the characters with English.

I haven't tried it on for size yet, but it looks close!

-P



It's very good but missed out 'PROBE CHECK' decal

Can you get these made in the same material as the original ?

 

Offline PsI-On

  • Contributor
  • Posts: 25
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #314 on: March 07, 2011, 09:55:06 pm »
Original Panel changed....

tinhead - "Khz" to "KHZ"
yachtronics - added "PROBE CHECK"

I was thinking you could use 'Water-Slide Decal Paper' to make a new front panel, I haven't done this myself so I'm not sure if it'll work!

-P
 

Offline nukie

  • Frequent Contributor
  • **
  • Posts: 779
  • Country: au
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #315 on: March 08, 2011, 12:49:06 am »
This is my Tekway DST1102B if anyone's interested

My External trigger measures 22R vs the 33R channel input resistors

*Copy from tinhead post, updated with my scope hardware details*

Input resistors (channels and ext trigger)
    100MHz - 33R 0.1% channels
    100MHz - 22R ext trigger

Compensation resistors (channels only)
    100MHz - 12R 0.1%

OpAmp resistors (4 x per channel)
    100MHz - 301R 0.1%

OpAmp arrays (2 x per channel)
    100MHz - 39R 1%

Trigger stage
    100MHz - 100R 1%
    100MHz - 466.5R !!!
« Last Edit: March 08, 2011, 01:49:08 am by nukie »
 

Offline tinhead

  • Super Contributor
  • ***
  • Posts: 1922
  • Country: 00
    • If you like my hacks, send me a donation
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #316 on: March 08, 2011, 01:16:32 am »
Trigger stage
    100MHz - 466.5R !!!


maybe you on wrong place? I mean this one (red marked) ...

Btw, Tekway is as always clean soldered, i wish Hantek will learn to soldr too ... almost every Hantek was not that clean.

« Last Edit: March 08, 2011, 01:18:03 am by tinhead »
I don't want to be human! I want to see gamma rays, I want to hear X-rays, and I want to smell dark matter ...
I want to reach out with something other than these prehensile paws and feel the solar wind of a supernova flowing over me.
 

Offline nukie

  • Frequent Contributor
  • **
  • Posts: 779
  • Country: au
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #317 on: March 08, 2011, 01:48:19 am »
Sorry, I measured again it's 100R. All good!

Tips for all users, it's good to connect the dso to a UPS battery backup to prevent mains interruption during firmware upgrades.

For those who are interested in recapping the unit, here's the list of caps

SMPS (13)
C6 - 100uF 400v
C8 - 47uF 50v
C11 - 1000uF 16v
C14 - 1000uF 16v
C15 - 22uF 16v
C17 - 2200uF 16v
C18 - 1000uF 25v
C19 - 3300uF 10v
C20 - 1000uF 16v
C22 - 330uF 6.3v
C23 - 1000uF 16v
C25 - 470uF 25v
C36 - 100uF 35v

Main PCB (16)
C512 - 220uF 16v
C514 - 220uF 16v
C636 - 220uF 16v
C675 - 1000uF 10v
C676 - 220uF 16v
C715 - 220uF 16v
C912 - 220uF 16v
C913 - 1000uF 10v
C934 - 220uF 16v
C935 - 1000uF 10v
C936 - 220uF 16v
C942 - 100uF 35v
C943 - 470uF 25v
C944 - 1000uF 10v
C948 - 1000uF 10v
C949 - 1000uF 10v
« Last Edit: March 08, 2011, 02:30:52 am by nukie »
 

Offline tinhead

  • Super Contributor
  • ***
  • Posts: 1922
  • Country: 00
    • If you like my hacks, send me a donation
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #318 on: March 08, 2011, 01:55:10 am »
Sorry, I measured again it's 100R. All good!

:)

you don't have to measure, just read what on the resistor, they are EIA code marked:

http://talkingelectronics.com/contents/articles/109/1/Resistors---EIA-markings/Page1.html

I don't want to be human! I want to see gamma rays, I want to hear X-rays, and I want to smell dark matter ...
I want to reach out with something other than these prehensile paws and feel the solar wind of a supernova flowing over me.
 

Offline project

  • Contributor
  • Posts: 35
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #319 on: March 08, 2011, 03:17:39 am »
Btw, Tekway is as always clean soldered, i wish Hantek will learn to soldr too ... almost every Hantek was not that clean.

Mine looks fine, but not proper washed, still have un-washed rosin/flux on board, I did wash by myself. I believe all boards are made by Tekway. Slightly diff quality, guess due to diff batch and little adjustment of production line(wave soldering). Hantek's 5000B series Just OEM by tekway, Hantek load custom firmware only. This is quite normal in China now.
 

Offline RFman

  • Contributor
  • Posts: 36
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #320 on: March 08, 2011, 06:24:34 am »
I scanned the Chinese panel and replaced the characters with English.


Hi PsI-On,

that a good job you did on the English front panel. I may need it, but I haven't decided where I'll purchase my oscilloscope from, I'm waiting for some prices before I choose.

A great Front panel, thanks.
 

Offline RFman

  • Contributor
  • Posts: 36
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #321 on: March 08, 2011, 11:22:46 am »
I scanned the Chinese panel and replaced the characters with English.


I've made some great front panel labels from A4 size stick on labels:

http://www.kalex.net.au/timesaver-price-list

Page 15: C3897/A4 10 SHEETS SILVER LABEL $27.50

I used a colour laser printer and stick on clear book covering to protect the print. Kalex also have a can of spray on protection. The silver label colour is simular to the colour of aluminium. Looks great.
 

Offline tinhead

  • Super Contributor
  • ***
  • Posts: 1922
  • Country: 00
    • If you like my hacks, send me a donation
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #322 on: March 08, 2011, 05:00:17 pm »
Tekway/Hantek doing YouScope demo ...

https://www.eevblog.com/forum/index.php?topic=2730.0

I don't want to be human! I want to see gamma rays, I want to hear X-rays, and I want to smell dark matter ...
I want to reach out with something other than these prehensile paws and feel the solar wind of a supernova flowing over me.
 

Offline Igor

  • Contributor
  • Posts: 25
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #323 on: March 08, 2011, 05:55:30 pm »
Tekway/Hantek doing YouScope demo ...
Are you a magician?
I want this demo too!   ;D
« Last Edit: March 08, 2011, 06:16:04 pm by Igor »
 

Offline tinhead

  • Super Contributor
  • ***
  • Posts: 1922
  • Country: 00
    • If you like my hacks, send me a donation
Re: Hantek - Tekway - DSO hack - get 200MHz bw for free
« Reply #324 on: March 08, 2011, 06:32:39 pm »
Tekway/Hantek doing YouScope demo ...
Are you a magician?
I want this demo too!   ;D

http://www.eevblog.com/2011/03/08/eevblog-153-youscope-demo-on-a-digital-scope/

so just dw the wav and let's play left+right channels to ch1+ch2 in XY mode. Is not really good, but still better as Rigol.
I haven't tested with persistency on, so it could be even better setup.

The XY mode on HanTekway isn't really good, especially noice level - so there is definitely room for improvement.
 
Bingo, with 40kpts memory settings is much better, no dropped frames. The 4kpts as in my video was not enough.
« Last Edit: March 08, 2011, 07:11:17 pm by tinhead »
I don't want to be human! I want to see gamma rays, I want to hear X-rays, and I want to smell dark matter ...
I want to reach out with something other than these prehensile paws and feel the solar wind of a supernova flowing over me.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf