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Siglent SDG6000X series 200-500 MHz AWG's

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hpw:

--- Quote from: Detlev on April 04, 2023, 05:27:07 pm ---I just saw that the phase noise markers are a bit shifted, sorry for that

--- End quote ---

Would be nice to do some FM/PM modulation graphs as using 10MHz and square waves.

While on SDG2K even latest FW is in question, as Siglent claimed to have fixed the square wave modulation on a later SDG6K FW too.

PM me if you need the used settings as low deviation factors used.

Hp

Detlev:

--- Quote ---Would be nice to do some FM/PM modulation graphs as using 10MHz and square waves.

While on SDG2K even latest FW is in question, as Siglent claimed to have fixed the square wave modulation on a later SDG6K FW too.

PM me if you need the used settings as low deviation factors used.

Hp

--- End quote ---

If you can specify more parameters, then I can see what I can do (FM frequncy, frequency deviation)

hpw:

--- Quote from: Detlev on April 06, 2023, 06:45:42 pm ---If you can specify more parameters, then I can see what I can do (FM frequncy, frequency deviation)

--- End quote ---

See my old post https://www.eevblog.com/forum/testgear/siglent-sdg2000x-firmware-hardware-software-versions/msg4574719/#msg4574719

SDG Generator setup:
- Square +510mV -510mV
- Spectrum 0dBm as 20dB attenuation, 1Hz BW, 2.5kHz / 500Hz Span

SDG:

FM: 10MHz, Square, 500Hz 105mHz expected side peaks at -80dB

PM: 10MHz, Square, 500Hz 0.014°, expected side peaks at -80dB

Just a first measurement request...

Hp

Detlev:
I took two measurements here. If the carrier is a rectangle, I don't see any sidebands. Therefore, here carrier with sine and modulation with square. Above in the screenshot are the parameters.

If you want, I can do more measurements, the devices have warmed up  :)

hpw:

--- Quote from: Detlev on April 07, 2023, 03:30:51 pm ---I took two measurements here. If the carrier is a rectangle, I don't see any sidebands. Therefore, here carrier with sine and modulation with square. Above in the screenshot are the parameters.

If you want, I can do more measurements, the devices have warmed up  :)

--- End quote ---

Well, "Wer mist, mist Mist"  :-DD

I mean, the R&S is in noise figures any better than the used SSA2K plus, also the close in noise figures any different.

IMHO, best would be to generate the signals as using LTSpice/Matlab or else and measure the real expected modulation peaks. To build a table with various figures and modulation frequency else than 500Hz as may 100, 200, 500, 1000 Hz with various deviations.

Else is fishing on the dark moon site.  |O

As models from R&S & KS & Tektronix & Siglent & Rigols with may any different values. But for sure the SDG2K & SDG6K.

Hp


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