Uniden BC 245XLT User Manual download pdf (Page 5)

Terminology

What is Scanning?

Unlike standard AM or FM radio stations, most two-way

communications do not transmit continuously. The

BC 245XLT

scans the channels you program until it finds

an active frequency.

Scanning stops on an active frequency and remains on

that channel as long as the transmission continues. When

the transmission ends, the scanning cycle resumes until

another transmission is received.

What is Searching?

The

BC 245XLT

can search each of its 12 bands to find

active frequencies. This is different from scanning because

you are searching for frequencies that have not been

programmed into your scanner. You can choose between

two speeds while searching. Turbo Search, a new feature

for Uniden scanners, can search the VHF FM bands at up to

300 channels per second.

What is Trunk Tracking?

Conventional scanning is a simple concept. You enter a

radio frequency in your scanner’s memory which is used by

someone you want to monitor. For example, the police in

your area may broadcast on 460.500 MHz , the fire

department on 154.445 MHz, the highway department on

37.900 MHz, etc. So when your scanner stops on a

frequency, you usually know who it is, and more

importantly, you can stop on a channel and listen to an

entire conversation. This type of scanning is easy and fun.

As the demand for public communications has increased,

many public radio users don’t have enough frequencies to

meet their needs, and this has created a serious problem.

Trunking radio systems solve this problem.

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Uniden BC 245XLT User Manual Page 5