Snohomish County PUD Radio Operations Manual • Rev. 6/03
16
Section II
Interpreting the Alert Tone Indications
The radio generates a number of audible tones to indicate operating conditions.
Alert Tone Description Refer To
Low Battery A low-battery condition is indi-
cated by a high-pitched, cricket-
like “chirp-chirp” when the PTT
Switch is released following a
transmission.
Unsuccessful Power-Up A short, low-pitched tone when
the radio is first turned on indi-
cates that the radio has failed its
power-up self test and is not
ready for use.
Invalid Mode A continuous, low-pitched tone is
heard when an invalid or unpro-
grammed operation is attempted
on the radio.
Valid [Good] Key Press A short, medium-pitched tone
when a keypad key is pressed
indicates that the key press was
accepted.
Invalid [Bad] Key Press A short, low-pitched tone when a
keypad key is pressed indicates
that the key press was rejected.
Emergency Alarm Entry One beep followed by five (5)
beeps when the Emergency But-
ton is pressed indicates that the
radio has entered the emergency
mode.
Section IV:
Ordering,
Removing and
Installing
Batteries
Section IV:
Servicing the
Radio
Section II:
Basic Radio
Operation
Section III:
Emergency
Operations
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