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Siglent SDS1104X-E In-Depth Review

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2N3055:
Here, quick capture, sweep from 1kHz to 200MHz, 200mV P-P, 61 sec sweep, several passes.
Scopes used MSOX3104T and Picoscope 3406D MSO.. Flat top window on FFT.

Picoscope TA131 and Testec TT HF212..

bobof:

--- Quote from: 2N3055 on June 16, 2019, 05:17:42 pm ---Here, quick capture, sweep from 1kHz to 200MHz, 200mV P-P, 61 sec sweep, several passes.
Scopes used MSOX3104T and Picoscope 3406D MSO.. Flat top window on FFT.

Picoscope TA131 and Testec TT HF212..

--- End quote ---

Am I reading this right - does it tell you not much more than that you can't usefully compare results for different probes on different scopes without detail knowledge of how the input circuitry compares between scopes?

The HF212's look quite nice; I see RS rebadge them in the UK but that they can probably be had cheaper on their original label.
Am I right in thinking they don't come with any sort of identification bands for the connector / probe?  Do the ones from Siglent fit somewhere on the probe / connector?

rf-loop:

--- Quote from: 2N3055 on June 16, 2019, 05:17:42 pm ---Here, quick capture, sweep from 1kHz to 200MHz, 200mV P-P, 61 sec sweep, several passes.
Scopes used MSOX3104T and Picoscope 3406D MSO.. Flat top window on FFT.

Picoscope TA131 and Testec TT HF212..

--- End quote ---

No any word about test setup.
Please, can you explain how was probes connected to signal source, including also source impedance.
Test setup is least as important as result data - images.






2N3055:

--- Quote from: rf-loop on June 16, 2019, 05:46:37 pm ---
--- Quote from: 2N3055 on June 16, 2019, 05:17:42 pm ---Here, quick capture, sweep from 1kHz to 200MHz, 200mV P-P, 61 sec sweep, several passes.
Scopes used MSOX3104T and Picoscope 3406D MSO.. Flat top window on FFT.

Picoscope TA131 and Testec TT HF212..

--- End quote ---

No any word about test setup.
Please, can you explain how was probes connected to signal source, including also source impedance.
Test setup is least as important as result data - images.

--- End quote ---

Like I said before SSDG6000X, probes with BNC tip adapter directly to the output of siggen. Before measurement, I grabbed 1 MHz square wave with direct BNC cable (50 ohm terminated) into reference trace, and compensated both probes to overlay their response over reference one.. and check with 1 kHz square wave for low frequency top flatness..

HF 212 has 3 trimmers, 1 for LF and 2 for HF compensation.. TA131 has only LF compensation on probe body. I didn't try to lift sticker on BNC side box to see if it has HF compensation there but hidden from user.

2N3055:

--- Quote from: bobof on June 16, 2019, 05:40:10 pm ---
--- Quote from: 2N3055 on June 16, 2019, 05:17:42 pm ---Here, quick capture, sweep from 1kHz to 200MHz, 200mV P-P, 61 sec sweep, several passes.
Scopes used MSOX3104T and Picoscope 3406D MSO.. Flat top window on FFT.

Picoscope TA131 and Testec TT HF212..

--- End quote ---

Am I reading this right - does it tell you not much more than that you can't usefully compare results for different probes on different scopes without detail knowledge of how the input circuitry compares between scopes?

The HF212's look quite nice; I see RS rebadge them in the UK but that they can probably be had cheaper on their original label.
Am I right in thinking they don't come with any sort of identification bands for the connector / probe?  Do the ones from Siglent fit somewhere on the probe / connector?

--- End quote ---
Testec is available from many sources including Farnell in UK.
I mark them with label printer.

Unfortunately, it was a quick check so Picoscope is not same vertical scale, but if you look closely shape on lower frequencies track quite nicely. It is only as you go higher, Pico starts limiting things being 200MHz scope.
Shape shown on Keysight is pretty much pure probe response, Keysight being 1GHZ ...

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