Products > Test Equipment
Gw Instek GDS2204E (200MHz 4 channel DSO) review
rhb:
With all channels enabled, they're being sampled at 500 MSa/S. You can only do 300 MHz on two channels of a 4 channel, or one of a two unless all you want to do is look at it.
I was quite amazed to discover that a 2 GS/S scope channel can go as high as 1.5 GHz, a mere 50% above Nyquist. It works. It's a LeCroy and it gives 220-230 pS with one of Leo's pulsers. Both sampling at 2 GSa/S and 4 GSa/S. But the overshoot is "<20%"!!!
Mortymore:
For those who haven't noticed, there's a new firmware version 1.37 for the GDS-2000E series (released at 2018-11-28)
https://www.gwinstek.com/en-global/products/detail/GDS-2000E
Version 1.37
1.Fixed the crash issue for the "bus decode" function
2.Fixed the "peak table" data storage issue for the SA mode.
3.Added the new "SA:LIST? SCPI" command.
4.Changed the data transmission format of "SEGMents:MEASure:TABle:LIST?" (SCPI command) to the "block data" transmission format.
5.Changed the data transmission format of " LISTer:DATA?" ( SCPI command) to the "block data" transmission format.
6.Improved the measurement high-low(histogram) calculation method.
7.Fixed the correspondence problem of frequency value for the Math FFT Detail CSV of "Save All Waveform" function.
Have a great 2019
Mortymore:
This scope doesn't stop!
Yesterday I updated to the latest firmware version v.1.38 (2019-01-26) and manage to activate a licence for the Spectrum Analyzer option.
After fooling around a bit with the SA functionality, I realize that I have a 70MHz oscilloscope (IDS-2074E), "upgraded" to 300MHz (EDIT: upated from 200MHz), "upgraded" again to a Spectrum Analyser with a frequency span of 500MHz :wtf:
Attached 3 screen captures in SA mode. 2 of them from a 60MHz sinusoid (SDG1032X) with a span of 500MHz, and another from a 1MHz sinusoid with a span of 10KHz. Neat :-+
Stretching the rope, I wish Santa could make FRA APP work with an external function generator so it could run on the GDS scopes.
nctnico:
Hmm, you didn't install the 300MHz license key? ;D
Mortymore:
--- Quote from: nctnico on January 29, 2019, 08:16:36 pm ---Hmm, you didn't install the 300MHz license key? ;D
--- End quote ---
It didn't work on my 70MHz scope. But I'm happy with the 200Mhz anyway.
PS: What is the frequency span of the SA on your stretched 300MHz scope?
UPDATE: Now I manage to have the 300MHz working. But had to clear first the file OptionConf to clean the 200MHz BW licence instaled
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