ASTRO XTS 2500/XTS 2500I Model III 33 
General Radio Operation
Use Preprogrammed Volume Set Button
1 Turn the radio on and select 
the desired zone and 
channel. See Turn the 
Radio On, page 25 and 
Zones and Channels, 
page 26.
2 Press and hold the Volume 
Set button to hear the 
volume set tone.
3 Release the Volume Set 
button.
4 Adjust the Volume Control 
Knob if necessary.
5 Press and hold the PTT 
button to transmit. LED lights 
RED while transmitting. 
6 Release PTT button to 
receive (listen).
94C06.book  Page 33  Wednesday, June 23, 2010  11:41 AM