Roll Over/ Dead End; Dead Beat Disable (Dbd); Timed Power Off - Kenwood TK-690 Series Instruction Manual

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Roll Over/ Dead End

If roll over is enabled and you are pressing the GRP Up/ Down keys, or
rotating the CH control, when you reach the maximum or minimum number,
the number will roll over to the minimum or maximum number. For example,
when turning the CH control clockwise, the channel number increases.
When it reaches its maximum value, it rolls over to its minimum value and
then starts to increase again.
If dead end is selected, when you reach the maximum or minimum value, the
value will not change. For example, when turning the CH control clockwise,
the channel number increases. When it reaches its maximum value, it stops.
You must then rotate the CH control counterclockwise to change the value.
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Dead Beat Disable (DBD)

After receiving a DBD code, the transceiver will automatically send an
acknowledgement signal. Transmission is disabled. If the radio receives a
DBD reset code, the transceiver will automatically send an acknowledgement
signal. Transmission is enabled.
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Timed Power OFF

This function requires an ignition-sense which must be connected to the 9 pin
connector on the rear panel of the transceiver. When you turn the ignition of
your vehicle OFF, the timer starts. After the pre-selected time expires, the
transceiver will turn OFF. The timer resets when the ignition is turned ON and
OFF.
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