An IBOC broadcasting receiver that uses two different bit error rates as
threshold values in receiving hybrid broadcasting in a simultaneous
broadcasting format, and switches between digital broadcasting reception
and analog broadcasting reception based on the two threshold values. The
IBOC broadcasting receiver counts the number of occurrences of switching
between digital broadcasting reception and analog broadcasting reception
in a specified period of time, and increases a hysteresis width between
the two threshold values when the number of occurrences of switching
counted exceeds a specified number. Further, the counter of the IBOC
broadcasting receiver counts the number of occurrences of switching of
broadcasting receptions in a specified period of time by using another
set of threshold values changed as a result of the increased hysteresis
width, and reduces the hysteresis width between the another set of
threshold values when the number of occurrences of switching counted is
less than the specified number.