Giant Electronics Ltd T3800 Manual Do Utilizador

 
Any PMR set on the same channel can receive and listen to the conversation, also when the other 
use a CTCSS code. 
 
To disable CTCSS code, set the code to “0” 
 
5. Call Tones 
 
Your radio can transmit different call tones to other radios in your group so you can alert them that 
you want to talk. 
To setting the Call tone:   
The Radio    has 5 call tones 
• With the radio on, press “Menu” button three times. The current call tone setting number flashes 
and “C” will be displayed. 
 
• Press “Up” button or the “Down” button to select another call tone. 
• Press “PTT” button to confirm your selection and return to standby mode. 
 
To Sending Call Tone: 
• Press the “Call “ button briefly. The selected call tone will be transmitted for one time on the set 
channel. The Call Tone will be repeated a maximum of 10 times while the “Call” button is pressed 
and held. 
 
To disable Call Tones, select “0” 
 
6. Time-out Timer 
The Time-out Timer feature helps extend battery life by preventing accidental transmission. The 
radio will emit a continuous warning tone after “PTT” button is pressed for 60 continuous seconds 
and will stop transmitting. 
 
7. Channel Scan 
 
Channel Scan performs searches for active signals in an endless loop from channel 1 to 22, 
including CTCSS codes. 
 
Activate channel scan: 
• Press the “Menu” button four times. 
• Press the “Up” button or “Down” button, until “Y” is displayed, to activate scanning. 
• Press the “PTT” button to confirm your selection. 
• When activity on one of the 22 channels is detected the channel scan will stop and you can listen 
to the conversation on this channel. 
• Press the “Up” button or the “Down” button to skip the channel. 
• If no button is pressed and no activity has been detected, the channel scan will continue 
automatically after 5 seconds. 
 
You can not change the speaker volume in channel scan mode.