Motorola MTS 2000 Operation Manual page 25

Basic Radio Operation Concepts
Your Snohomish County PUD radio offers a number of advantages, including
fast system access, enhanced privacy, and ease of operation. In a computerized
system, there is no need to check to see if a channel is busy before a transmission;
however, you do need to listen for the alert tones before you start talking to receive
information about availability of channels and features you are trying to access.
Snohomish County PUD Radio Operations Manual • Rev. 6/03 Section II
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