API saGetSweep value units

Hello,

I’m working with a SA44B using the API in Python. I’m able to utilize the API just as I would have anticipated.
The issue I’m having is that the “min” and “max” arrays values don’t correspond to dBm as I would have suspected. The values do follow the level as expected, but not the values. An example is attached.

Is there a function to convert these values to dBm?
Perhaps it has to do with the way that I instantiate the two arrays? This is the code I’m using to create the min/max arrays before calling the saGetSweep method, where swlen is the length of the sweep

        pyarr = [x for x in range(swlen.value)]
        arr = (ct.c_int * len(pyarr))(*pyarr)
        arr2 = (ct.c_int * len(pyarr))(*pyarr)
        min_pointer = ct.pointer(arr)
        max_pointer = ct.pointer(arr2)
        res = self.sa.saGetSweep_32f(self.deviceHandle, min_pointer, max_pointer)

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Hi Matt,

The min and max arrays populated by saGetSweep_32f are 32-bit floating point numbers, not ints. So, use ct.c_float instead of ct.c_int in your array initializations.

Regards,
Roger

Perfect!
Thank you

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