User guide
8
English
GP140 USER GUIDE
RADIO CALL INFORMATION
Emergency
Your radio can be programmed to emit an 
emergency siren. The Emergency Siren will cause 
the radio to sound a repetitive tone at the maximum 
volume.
1. Press and release the 
Emergency
 button to ini-
tiate an Emergency Siren.
2. Press and hold the 
Emergency
 button to cancel 
the Emergency Siren.
3. Press and release the 
Emergency
 button to 
restart the Emergency sequence.
Talkaround
In your communications network, you may be using 
a repeater to cover a larger area than what is 
possible with your radio. However, you can 
communicate with another radio within your radio’s 
range without going through the repeater by using 
the 
Talkaround
 feature. This is especially useful 
when the repeater is down. 
Press the programmed 
Repeater/Talkaround
button to toggle between the options of making or 
not making a call through the repeater. A positive 
indicator tone indicates that the radio is in 
talkaround mode, while a negative indicator tone 
indicates that the radio is in repeater mode.
Squelch
If a particular channel receives many unwanted calls 
coming from radios that do not belong to your 
communications group and are some distance away, 
or the “background noise” is excessive, you can try 
to filter these transmissions out by tightening the 
channel’s squelch. However, tightening squelch 
could cause calls from members of your 
communications group that are farther away to be 
filtered out as well. To set the squelch level:
Press the programmed 
Squelch
 button to toggle 
between the options of having normal squelch or 
tightening the squelch of your radio. A positive 
indicator tone indicates that the radio is operating in 
tight squelch, while a negative indicator tone 
indicates that the radio is operating in normal 
squelch.










