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IQ bandwidth lower limit

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  • December 29, 2015 at 12:07 am #75288
    Anonymous
    Inactive

    Hello
    In bb_api.h BB_MIN_IQ_BW is disable. So …
    How can I know IQ bandwidth lower limit for any sample rate ?

    December 29, 2015 at 9:40 am #75340
    AndrewAndrew
    Moderator

    Hi Andrew,

    I apologize that the documentation doesn’t cover this in more detail. Here are the minimum bandwidths that can be selected based on decimation.

    For decimations
    [1 -> 128] : 50kHz
    [256] : 20kHz
    [512] : 10kHz
    [1024] : 5kHz
    [2048] : 2kHz
    [4096] : 1kHz
    [8192] : 0.5kHz

    These are absolute minimums and be aware that they are chosen as the practical limit based on the internal sample rate and FIR filter size used. I recommend specifying your own limits that are realistic to your application and using a combination of bandwidth and sample rate to achieve your necessary streaming requirements.

    If you have any further questions, please let me know.

    Regards,
    A.J.

    • This reply was modified 10 years, 9 months ago by AndrewAndrew.
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