Uniden UBC144XLT - Manual (Page 4)

Introduction
About Scanning
Scanning
Options
Types of
Communicatjon
Scanning is easy and fun with the UBC144XLT 16-Channcl
Base Scanner. You can scan in 2 ways:
■ Scan channels you have programmed
■ Scan pre-programmed weather channels.
Unlike standard AM or FM radio stations, most 2-way
communications (sec "Types of Communication" below) do
not transmit continuously. The UBC144XLT scans
programmed channels at the rate of about 15 channels per
second until it locates an active frequency. When the
scanning stops on an active frequency, it remains on that
channel as long as the transmission continues. When the
transmission ends, the scanner stays on the channel for
2 more seconds, waiting for a responding transmission. If
no responding transmission is detected, the scanning cycle
resumes until another transmission is received.
You can to monitor communication such as:
■ Police and fire department
(including rescue and paramedics) .
■ Weather broadcasts
■ Bu sines s/industrial radio
■ Motion picture and press relay
■ Utility
■ Land transportation frequencies such as trucking firms,
buses, taxis, tow trucks, and railroads
■ Marine and amateur (ham radio) bands
■ And many more