Terminology; What Is Scanning; What Is Searching; What Is Trunk Tracking - Uniden UBC 245XLT Trunk Tracker II Operating Manual

Terminology

What is Scanning?

Unlike standard AM or FM radio stations, most two-way
communications do not transmit continuously. The
UBC 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 UBC 245XLT can search each of its 10 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. 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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