Nokia A032 Manual page 15

ED Absolute
If set, this variable causes the ED threshold set
by 'set ed_threshold' to be regarded as an
absolute value. Otherwise the value is taken to
be relative to the noise floor.
Use caution when altering this setting, as in
combination with certain CCA modes it can
prevent reliable reception. By default, ED
absolute is set to TRUE, which can be changed
using the command
set ed_absolute <TRUE or FALSE>
Access point parameters 15