Products > Test Equipment
A review of the GWInstek 1054B
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whited:
I am also trying to compare against GDS-2000E series. It is interesting because 120k wfm/s added for GDS-1000B is matching the 2000E. They both use zynq 7010 SoC.

Seems 2000E advantages over 1000B are

* I2C/SPI/UART/CAN/LIN Serial Bus Trigger and Decoding
* bigger 8" screen, but same 840x480 resolution
* 2 ADCs so 1Gs/s can be on two channels simultaneously
* updated FFT with some sort of search and peak detection plus no overlap display of time and frequency domain (can 1000B do this?)
* expanded time base to 1ns/div
* VPO (visual persistence oscilloscope)
* Memory segmentation
I think I missed some. But I like the Serial decode and trigger in 2000E. But what if they add it via app to 1000B?? :)
I will email Instek.
saturation:
Yes, the 2000E is older than the 1000B.  The 1000B is more refined learning from the 2000E growing pains, you can read the thread about bugs found by early adopters on V1.x release, which did not exist in the 1000B V1.x release.

What functions both support are nearly identical in specification and speed suggesting they have very similar cores but the 1000 is missing hardware present in the 2000, that would make it thus of limited hackability and secure Instek's product differentiation and pricing value.

Originally the 1000 had 50,000 wfm/s but the first firmware update quitely 'opened' it so maybe 120k is its maximum, as well as engaged the sync out capacity again suggesting this was just crippling the core in firmware.

Yes, the detailed review of nctnico is best for the 2000E.  Your list is correct but comments on bolded items :

Yes, you can fudge it.  Since the FFT can be analyzed on the buffer, it doesn't need the time domain waveform viewed, however you cannot turn the channel its using off.  What I do is turn the acquisition off, RUN->STOP then shrink the waveform until it disappears or roll it out of the way! See photos later in these replies.

Yes, expanded timebases needed to properly view waveforms at 200+ MHz bandwidth.  This is much bigger than it appears.  The usuable bandwidth is easily >= 500 360 MHz.  However, with 1GS/s you'd have to keep an eye out for aliasing, you can use the built in filters as a DIY anti=aliases frequencies as you please, they have very high order cutoffs. 

Keep in mind 200 MHz probes no-name Chinese probes are < $15 each, < 100 MHz $6 each, but a single Chinese branded 500 MHz probe is about $100 each, and at 500 MHz we are at the limit for passive probes and true quality matters in its performance.

https://www.eevblog.com/forum/testgear/gw-instek-gds2204e-(200mhz-4-channel-dso)-review/msg855862/#msg855862



I do not know if 1000B has enough onboard memory to implement serial decode, even if an app could be written for it.

1000B do not have segmented memory, I cannot recall if this a hardware issue.

I'm guessing the 1054B is a firmware crippled 1104B as its entirely identical except for the bandwidth.  All that's need is to release the bandwidth filters.

Both uses VPO, but Rigol's is far superior as far as CRT like view.  I think Instek can improve on this easily, they need to increase the contrast options to the variable persistence, what exists barely changes the appearance.




--- Quote from: whited on December 14, 2016, 09:38:16 pm ---I am also trying to compare against GDS-2000E series. It is interesting because 120k wfm/s added for GDS-1000B is matching the 2000E. They both use zynq 7010 SoC.

Seems 2000E advantages over 1000B are

* I2C/SPI/UART/CAN/LIN Serial Bus Trigger and Decoding
* bigger 8" screen, but same 840x480 resolution
* 2 ADCs so 1Gs/s can be on two channels simultaneously
* updated FFT with some sort of search and peak detection plus no overlap display of time and frequency domain (can 1000B do this?)
* expanded time base to 1ns/div
* VPO (visual persistence oscilloscope)
I think I missed some. But I like the Serial decode and trigger in 2000E. But what if they add it via app to 1000B?? :)
I will email Instek.

--- End quote ---
wraper:

--- Quote from: saturation on December 15, 2016, 02:09:02 am ---Both uses VPO, but Rigol's is far superior as far as CRT like view.  I think Instek can improve on this easily, they need to increase the contrast options to the variable persistence, what exists barely changes the appearance.

--- End quote ---
Dunno, at least on 2000E, you set persistence to minimum setting (16ms) and get pretty much Rigol like "analog view". Except zero intensity is not really zero, so won't completely hide "low intensity" waveforms.
saturation:
eevblog screen cap of FFT setting of 1104B




My copy of the same fo= 1 MHz , FM at 5kHz and 500 Hz dev
a = RUN STOP
b = 1Mpts on FFT, 50MS/s sampling
c = 20dB vertical scale, 5kHz horz. div.
d= spur from my FM generator
e = suppressed source waveform
f = CH1 still active but RUN STOP and waveform 'rolled' away



fo = 50 MHz  FM 5kHz and 500 Hz dev
span to 10 kHz for clarity
a =fo suppressed [ not sure why]
b = source waveform suppressed





fo = 75 MHz,  5kHz and 500 Hz dev; gain to 500mV and span to 20 kHz for clarity, now past the 1054B rated bandwidth


whited:
Glad you are sharing screenshots, saturation. Is source waveform amplitude the same for all 3 carrier frequencies? It looks like -40dbv attenuation from 1MHz to 75MHz? That's a lot. Or maybe it's happening before the scope or I am missing something?

Instek has not yet replied regarding serial decode app for 1000B. It has only been 1 day though. Perhaps there is not enough memory as mentioned.
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