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In the WBT File Format document, section 5.4 IQ Data, it says that "The main IQ data is stored as two, 16 bit numbers per 32-bit word in the Q0-15 format (two’s complement fixed point data format with the radix to the right of bit 15, allowing numbers between -1 and 32767/32768)." This implies the values are integers. The figure associated with the description shows two "data fractional parts." Q: How should the values be interpreted, both numeric values and units (dBm, V2/Hz?)?