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Audio Signal Tones
High pitched tone
Low pitched tone
Tone
Signal
Description
Power up OK
Radio self-test OK.
Power up Fail
Radio self-test fail.
Button/
Keypad Error
Button/keypad key/
menu key press not
permitted.
Engaged
Channel busy or not
permitted to transmit.
Call Failed
Call failed to connect.
Force Monitor
Radio must monitor
channel before trans-
mission permitted.
Button
Feature
Enable
Any option button
pressed to enable a
feature.
Button
Feature
Disable
Any option button
pressed to disable a
feature.
Group Call
Radio receives a
Group Call.
Individual Call
Radio receives an
Individual Call.
Call
Reminder
Reminder of
unanswered call.
TOT Pre-Alert
Warns of expiry of
time out timer.
Monitor Alert
Alerts to change of
squelch.
Scan Start
Radio starts
scanning.
Scan Stop
Radio stops
scanning.
Priority Call
Decode
Radio detects a
priority call.
Priority
Channel
Radio landed on the
priority channel.
Lone Worker
Reminds lone worker
to respond.
Low
Battery
Battery below receive
threshold level.
Hardware
Error
Hardware error, tone
continues until valid
operation.
Tone
Signal
Description