Products > Test Equipment
Micsig new oscilloscopes on website
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2N3055:

--- Quote from: tautech on March 20, 2023, 07:44:08 am ---
--- Quote from: 2N3055 on March 20, 2023, 07:05:15 am ---
--- Quote from: tautech on March 20, 2023, 01:10:35 am ---
--- Quote from: skander36 on March 19, 2023, 11:51:48 pm ---
--- Quote from: tautech on March 19, 2023, 10:54:45 pm ---
--- Quote from: skander36 on March 19, 2023, 10:36:25 pm ---
Clever design with two ADC, where you still have 2 GSa/s with two channels and 1 GSa/s with four channels.


--- End quote ---
Many 2000 series DSO's have used this design principle for years, even decades, it's nothing new.

--- End quote ---

It's not new for sure, but rare for chinese scopes. Rigol5K in 2 CH configuration remain with 4 or even 2 GSa/s.

--- End quote ---
Not so !

5k AFAIK uses a homespun ASIC, it's different !

SDS2000, SDS2000X, SDS2000X Plus, SDS2000X HD and SDS5000X for all their 4ch models use dual ADC's.
So does the $499 SDS1104X-E.
SDS6000A uses 1 for each channel like many now old scopes did but they never had the memory depth anything like the modern DSO.

Can't offer further info on other Asian brands as may be incorrect.

--- End quote ---

Older Rigol DS4000 series used 2 ADC too.. GW Instek 2000E series also.

It is actually quite common technique..

--- End quote ---
We know, skander36 is learning such.  ;)

--- End quote ---

I know you know, I added to your list...   ^-^
skander36:
Is not about that there are two ADC, but that with all four channels activated, you still have half of GSa/s instead of quart.
Anyway the post was more about the noise of this scope. which is annoying.
skander36:

--- Quote from: tautech on March 20, 2023, 01:10:35 am ---
--- Quote from: tautech on March 19, 2023, 10:54:45 pm ---Clever design with two ADC, where you still have 2 GSa/s with two channels and 1 GSa/s with four channels.


--- End quote ---

Not so !

5k AFAIK uses a homespun ASIC, it's different !

SDS2000, SDS2000X, SDS2000X Plus, SDS2000X HD and SDS5000X for all their 4ch models use dual ADC's.
So does the $499 SDS1104X-E.
SDS6000A uses 1 for each channel like many now old scopes did but they never had the memory depth anything like the modern DSO.

Can't offer further info on other Asian brands as may be incorrect.

--- End quote ---

Indeed, I've checked. Quartation of sampling rate on four channel is more common on Rigol scopes (HDO1k,4K, MSO5K, 7K, 8K) while Siglent has many models that keep sampling at half on four channels.
My intention was to say something good about this scope along with my complain about it, but if the vendor does not come with a solution for noise I think I will return it.
Big difference compared to TO1152 whose noise was barely audible.
Also the battery is draining fast with two fans at full speed all time.
dmeek:
I use my TO2004 daily and hardly notice the fan noise. Maybe with the TO3004's higher bandwidth, it has a more aggressive cooling system.
I control mine with a wireless mouse, don't use the touch screen much though I have no complaints about it.
In my last post I noted that the scope was not recognizing the probe attenuation factors. After the recent software updatethe BNC X1 X10 sensing
is now working but the Micsig probes are still not recognized. I have a DP750-100 and CP503. I have to set the ranges manually.
The update added a 180 degree screen rotation function so the BNCs would be on the bottom. Of course you have to figure out how to mount it since the
built in stand would be useless.
If anyone else has a TO2004 or TO3004 with Micsig probes, are they recognized on your scope?
skander36:
I don't have active probes to test, but as you say X10 probes are detected.
I also opened mine to see If I can do something about fan.
Seem to be identical with the 2004.
I don't know what can be improved on the fan, other than finding a better quality one.
I'm afraid to modify speed as in this case the calibration cannot be guaranteed.
It runs quite hot without fans and shields.
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