Kenwood TH-D74A User Manual page 111

FM Radio Auto Mute Return Time
When a signal is received or transmitted in band A or B while
listening to a radio broadcast in FM radio mode, the reception
sound of the radio broadcast is muted. When a signal is
no longer received in band A or B or after transmission is
completed, the transceiver automatically returns to FM radio
mode after a period of time has lapsed without any operation
being performed. This period of time can be changed.
After transmission is completed in band A or B, if you are
concerned about the switching of display or sound by signals
from the break station, lengthen the setting time.
1 Access Menu No. 701.
2 Select the time from [1] to [10] seconds.
Note:
◆ When an APRS or D-STAR interrupt screen is displayed in FM
radio mode, the screen switches to the interrupt screen.
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