6
General Radio Operation
Long,
Low-Pitched
Tone
No ACK Received
when the radio does not
receive an acknowledgment.
Time-Out Timer
Timed Out
after time out.
Talk Prohibit/
PTT Inhibit
when the PTT button is
pressed, and transmissions
are prevented.
Out-of-Range
when the PTT button is
pressed, but the radio is out of
range of the system.
Invalid Mode
when the radio is set to an
unprogrammed channel.
Individual Call
Warning Tone
when the radio is in Individual
Call without any activity for
more than 6 seconds.
A Group of
Low-Pitched
Tones (Busy
Tone)
Busy
when the system is busy.
Short,
Medium-
Pitched Tone
Valid Key-Press
when the correct key is
pressed.
Radio Self-Test
Pass
when the radio passes its
power-up self-test.
Priority Channel
Received
when activity on a priority
channel is received.
Emergency Alarm
Entry
when entering the emergency
state.
Central Echo
when the central controller has
received a request from a
radio.
Table 3: Alert Tones (Continued)
You hear:
Tone Name
Heard:
6816983H01.book Page 6 Tuesday, April 29, 2008 6:57 PM
