Type of Tone
Group of four
medium-pitched
tones every five
seconds
Short, medium-
pitched tone
(trunking only)
Four short,
medium-pitched
tones
Continuous, low-
pitched tone
Group of two
high-pitched
tones
ASTRO XTL 1500 Digital Mobile Radio with Control Head
Indicates...
Call Alert (page) received by your
radio.
Echo received in response to
emergency alarms.
Emergency alarm
acknowledged.
No Emergency. Current trunking
personality or
conventional system does not
have emergency enabled. No
emergency tone.
Fast ring in Private call.
System is searching for target
radio.
Getting to Know Your Radio
Action
11