| Description | An array of up to 512 real H(f) logarithmic representation
values in dB for the respective transmission direction. It is
designed to support up to 512 (downstream) subcarrier groups
and can be retrieved in a single segment.
The number of utilized values in the downstream direction depends
on NSds; in the upstream direction, it depends on NSus. This
value is referred to here as NS.
Each array entry represents the real Hlog(f = i*Df) value for a
particular subcarrier group index i, (0 <= i <= NS).
The real Hlog(f) value is represented as (6-m(i)/10), with m(i)
in the range 0 to 1022. A special value m=1023 indicates that
no measurement could be done for the subcarrier group because
it is out of the passband or that the attenuation is out of
range to be represented. This parameter is applicable in loop
diagnostic procedure and initialization.
Each value in this array is 16 bits wide and is stored in big
endian format. |