Products > Test Equipment

Gw Instek GDS2204E (200MHz 4 channel DSO) review

<< < (40/44) > >>

Mortymore:

--- Quote from: Mortymore on March 31, 2019, 10:50:23 am ---
Something that I find annoying with this scope is the "supra imposed windows", like with the feature "statistics" or a "table". Seems that Rigol and Siglent (series 1000) manage to re-arrange the windows so things fit or having some degree of transparency, don't block much the signal to be viewed. GW just place a opaque board, blocking everything (GW2000E_SA_Table.PNG).  :--


--- End quote ---

Actually GW-Instek have windows transparency, but in the 2000A series.

It can be seen at 6m30s on this video when the statistics option is enabled. Or for instance in the submenu options, scroll down windows. (buttons on the right side of the LCD, when they have submenu options)



On Dave's video "EEVblog #474 - GW Instek GDS-2000A Series Oscilloscope Unboxing & First Impression" it can be seen also throughout the video.

So why not on the 2000E?

Mortymore:
New firmware update to Version 1.39 (7 Nov 2019)

Version 1.39
1.The SPC function is supported under roll mode now.
2.Added new erase disk function that can empty all the saved image files which located on the DSO.
3.Fixed UART parity bugs.
4.Fixed ¡§Adv math¡¨ operation issue.

EDIT: Why "Erase Disk" and "1 of 3" has a different font? :palm:

Mortymore:
I was to put this info here earlier, but only now it goes.    :=\

Some posts ago I complained that there's a lot of free space in the screen when in XY mode. It turns out that it can be filled if cursors are used.

BC547C: hFE=575



Did some experiments using the XY mode to trace some BJT transistor curves, taking advantage of a 2 channel AWG.

TUT had a 100k \$\Omega\$ base resistor and a 50 \$\Omega\$ (100//100) at emitter.
Generator CH1 connected to the TUT collector and X (ch1) on the scope.
Generator CH2 connected to 100k \$\Omega\$ base resistor.
TUT emitter connected to 50 \$\Omega\$ and Y (ch2) on the scope.

For NPN
CH1: Ramp up, 8kHz, 10Vpp, 5V DC offset
CH2: Stair up, 1kHz, 4Vpp, 2V DC offset


BD139: hFE=292



For PNP
CH1: Ramp down, 8kHz, 10Vpp, -5V DC offset
CH2: Stair down, 1kHz, 4Vpp, -2V DC offset
EDIT: CH1 and CH2 on scope were inverted

BD140: hFE=298



Took advantage of the fact that it can be selected a current probe for input, and so on  channel2 (Y) of the scope, current values can be shown, instead of Volts.

EDIT: Edited to replace images along the post

Vytautas:
Hi, guys. Do we have a high resolution image of the AWG board used in any of the GDS-2000E scopes? Could anyone post it, pleeeaaase...

Mortymore:
New firmware v1.40

1.Added German menu
2.Added Portuguese menu (I didn't ask for this)  ;D
3.Fixed UART minor bug

Haven't tested yet. But would like to see at least a uniform font style.

And since I'm here, I'll ask a couple of things that I probably now the answer for, but...
Is there a GW scope/AWG pair to do a Bode Plot being the instruments independent, like Siglent has?
And following what I think is more or less the Vytautas idea: It could be added an internal AWG board to a GDS-2000E? (I realize that the case has no holes for the output BNCs)

EDIT:
They changed the font of "Erase Disk"  :-+



But as I suspected, the menus in Portuguese...  :--



In some cases they had to change the font size to fit, in other, almost out of the box, some text was not translated as the "Erase Disk" (Apagar Disco)... I never intended to change the language from English, but it's good to see the effort to reach other markets.
Does anyone knows if GW has a good market on Brasil? When I see stuff like this in Portuguese language, it's never actually because of the tiny market in Portugal, but because of an eventual much bigger market on Brasil that justifies the effort of translation.

EDIT2:

Wile browsing through the scope I don't recall I've seen the Function Module "Fixed 4 Measurement" before.
Have I been distracted or something?  ::) What does this do? Anyone has this unlocked?



EDIT3: The font type and style of the information above the horizontal menu buttons (yellow lettering) is different in the English to the Portuguese layout. In this regard I prefer the arial (maybe) font and not being bold, as seen in the Portuguese layout.
GW, can we have that font style in the English layout in the next firmware version?  ;)

Navigation

[0] Message Index

[#] Next page

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod