Chip Clk Err (802.15.4 HRP UWB)
shows the error between standard chip clock (499.2 MHz Megahertz: A unit of frequency equal to one million hertz or cycles per second.) and signal chip clock, averaged over all repetitions of the Si symbol in the SYNC portion of the SHR except for the first and last repetition. Chip Clk Err is expressed in parts-per-million (ppm), so the actual chip rate is (1 + Chip Clk Err/1E6) * 499.2 MHz.
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