DDRParticipantDDR July 22, 2021 at 3:45 am
Will I able to demodulate GSM band to find out the EVM data in SA44B.
Please advise me.
AndrewModeratorAndrew July 22, 2021 at 6:59 am
Using the digital demodulation measurements, you should be able to measure the modulation quality of a 2FSK signal like GSM assuming it’s within the bandwidth of the receiver, which is only 250kHz for the SA44B. Once in digital demodulation mode, select 2FSK for the modulation type, Gaussian for the filter, and select the GSM symbol rate. You can also video trigger the captures on timeslots if necessary.
Let me know if you have follow up questions.
Justin CrooksModeratorJustin Crooks July 22, 2021 at 9:36 am
Please note that the BB60C or SM200B/C will provide lower EVM numbers for a clean GSM signal, as I believe it barely fits in the SA44B bandwidth so there is significant rolloff at the band edges.
DDRParticipantDDR July 26, 2021 at 1:22 am
Ok. Thank you for the information guys.
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