Embraer EMB145 Operation Manual page 2384

NAVIGATION AND
AIRPLANE
COMMUNICATION
OPERATIONS
MANUAL
It is possible to enter a frequency, store it, and perform a self-test using
the same procedures applicable to regular COM units. The
announcements also will be the same.
Should any radio component fail or a disagreement occur between the
frequency selection and the subsequent transmission, the frequency or
operating command will be removed from the RMU and replaced by
dashes. This is an indication that the operation of that radio system is
not normal.
Page Code
2 04
2-18-22 MARCH 28, 2002