Motorola XTS2500 ユーザーズマニュアル

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General Radio Operation
Receive / Transmit
Radio users who switch from analog to digital radios often assume 
that the lack of static on a digital channel is an indication that the radio 
is not working properly. This is not the case. Digital technology quiets 
the transmission by removing the “noise” from the signal and allowing 
only the clear voice or data information to be heard.
This section emphasizes the importance of knowing how to monitor a 
channel for traffic before keying-up to send a transmission.
Without Using the Volume Set and Monitor Buttons
1
Turn the radio on and select 
the desired zone and 
channel.
2
Listen for a transmission.
3
Adjust the Volume Control 
knob if necessary.
4
Press and hold the PTT 
button to transmit. The LED 
lights RED while 
transmitting. 
5
Release the PTT button to 
receive (listen).