APX
TM
7500 O5
30
Index
Alert Tones
IDENTIFYING STATUS INDICATORS
An alert tone is a sound or group of sounds. Your radio uses alert tones to inform you of your radio’s conditions.
The following table lists these tones and when they occur.
You Hear Tone Name Heard
Short,
Low-Pitched
Tone
Play
Radio Self Test Fail When radio fails its power-up self test.
Reject When unauthorized request is made.
Time-Out Timer Warning Four seconds before time out.
No ACK Received When radio fails to receive an acknowledgment.
Individual Call Warning Tone When radio is in an individual call for greater than 6 seconds without any activity.
Talk Prohibit/PTT Inhibit (When PTT button is pressed) transmissions are not allowed.
Long,
Low-Pitched
Tone
Play
Time-Out Timer
Timed Out
After time out.
Out of Range (When PTT button is pressed) the radio is out of range of the system.
Invalid Mode When radio is on an unpreprogrammed channel.
A Group of
Low-Pitched
Tones
Play
Busy When system is busy.
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