Uniden bearcat ubc3500xlt 사용자 설명서

19

Repeater systems use two frequencies: one transmits 
from the radio to a central repeater; the other transmits 
from the repeater to other radios in the system. With a 
repeater-based system, the repeater is located on top 
of a tall building or on a radio tower that provides great 
visibility to the area of operation. When a user 
transmits (on an input frequency), the signal is picked 
up by the repeater and retransmitted (on an output 
frequency). The user’s radios always listen for activity 
on the output frequency and transmit on the input 
frequency. Since the repeater is located very high, 
there is a very large line of sight.

By itself, this manual really only provides part of what 
you need to know to have fun scanning – how to 
program and use the scanner.

The Internet is a great source for current frequencies 
and information about scanning. Many web sites have 
lists of frequencies for your area. You can use a 
search engine to find and use them.

Make a list of the agencies you want to listen to, then 
look up the frequencies and systems used by those 
agencies.

• www.racescanner.eu - Race frequency 

information, programming software and 
accessories.