VSG25A narrow band QAM demodulation using SA series

Hi Sir,

I’m planning to buy the VSG25A for my project on narrow band sub-1Ghz QAM Power Amplifier. I only have the SA series to work with, my question is what is the maximum bandwidth in which the SA can properly demodulate the QAM signal generated by the VSG25A.

Can you also provide the limitation when we use VSG in terms of demodulation functionality in spike using SA series.

Thank you and looking forward on your reply soon.

Regards,
Mervin

Hi Mervin,

For the SA and VSG devices, the symbol rate limitations on QAM16 are going to be between 16kS/s and 150kS/s. The VSG is capable of generating QAM64 and QAM256 patterns but the SA is not able to demodulate them currently. You can configure a QAM signal with up to 512 symbols. I have attached an image of this setup.

If you have further questions, let me know.

Regards,
A.J.

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