uPD98311A (PHS Base Band LSI)

At which timing is an electric field strength measurement value extracted? During 1-symbol, is it AD values?
Or is the value accumulated for a certain period of time?

Electric field strength measurement consists in determining the measurement point taking the value of the timing counter that generates the receive timing of the uPD98311 as reference, and setting the measured electric field value of that point to a register.

In the burst continuous reception mode and the intermittent reception 1 mode, three points are measured during the reception slot (625 us interval).
Moreover, in the intermittent reception 2 mode, 1 point is measured when upon normal reception of UW.

The electric field strength measurement value is not obtained by integrating values continuously measured over a given time interval.