This attribute controls the frequency span of each segment (instance) in the docsIf3CmSpectrumAnalysisMeasTable. If set to a value of 0, then a default span will be chosen based on the hardware capabilities of the device. Segments are contiguous from the FirstSegementCenterFrequency to the LastSegmentCenterFrequency and the center frequency for each successive segment is incremented by the SegmentFequencySpan. The number of segments is (LastSegmentCenterFrequency - FirstSegmentCenterFrequency)/SegmentFrequencySpan + 1. A segment is equivalent to an instance in the docsIf3CmSpectrumAnalysisMeasTable. The chosen SegmentFrequencySpan affects the number of entries in the docsIf3CmSpectrumAnalysisMeasTable. A more granular SegmentFrequencySpan may adversely affect the amount of time needed to query the table entries in addition to possibly increasing the acquisition time. Changing the value of this attribute may result in changes to the docsIf3CmSpectrumAnalysisMeasTable. Note that if this attribute is set to an invalid value, the device may return an error, or may adjust the value of the object to the closest valid value. Setting this mib should be prior to arrisCmDoc30SpectrumEnable to make it take effect