Motorola XPR 5550 用户手册

Transmissions are sent and received on a channel. Depending 
on your radio's configuration, each channel may have been 
programmed differently to support different groups of users or 
supplied with different features. After selecting the required 
zone, select the channel you require to transmit or receive on.

Procedure: 

Select a channel by using: 

Scroll Up/Down buttons, OR

Volume/Channel Knob, OR

The programmed Channel Up or Channel Down buttons

See Selecting a Zone on page 17 for more information on 
selecting your required zone. 

See Switching Between Conventional Analog and Digital 
Mode on page 7 for information about Scroll Up/Down buttons.

See Using the Volume/Channel Knob on page 8 for 
information about using the Volume/Channel Knob.

See Programmable Buttons on page 4 for information about 
the Channel Up or Channel Down buttons. 

Once the channel, subscriber 
alias or ID, or group alias or ID 
is displayed, you can proceed 
to receive and respond to 
calls.

NOTE: The green LED lights up while the radio is transmitting 

and double blinks when the radio is receiving a privacy-
enabled call.

To unscramble a privacy-enabled call, your radio must 
have the same Privacy Key, or the same Key Value 
and Key ID (programmed by your dealer) as the 
transmitting radio (the radio you are receiving the call 
from).

See Privacy on page 59 for more information. 

Green
LED