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You Hear
Valid Key-
Press
Radio Self-Test
Pass
Clear Voice
Short,
Medium-
Priority
Pitched
Channel
Tone
Received
Emergency
Alarm Entry
Central Echo
Long,
Volume Set
Medium-
Pitched
Emergency Exit When exiting the emergency state.
Tone
Failsoft
Automatic Call
Back
Talk Permit
A Group of
Medium-
Keyfail
Pitched
Console
Tones
Acknowledge
Received
Individual Call
Call Alert Sent
ASTRO XTS 4000
Table 6: Alert Tones (Continued)
Tone Name
Heard
When correct key is pressed.
When radio passes its power-up
self test.
At beginning of a non-coded
communication.
When activity on a priority channel
is received.
When entering the emergency
state.
When central controller has
received a request from a radio.
When volume is changed on a
quiet channel.
When the trunking system fails.
When voice channel is available
from previous request.
(Only when PTT button is pressed)
verifying system accepting
transmissions.
When encryption key has been lost.
When status, emergency alarm, or
reprogram request ACK is
received.
When Call Alert or Private Call is
received.
When Call Alert is received by the
target radio.
General Radio Operation
13
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