Uniden BC95XLT 사용자 매뉴얼

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frequency, it stops on that frequency as long as the 
transmission lasts. If you think the frequency is 

 

interesting, you can program it into one of the banks. 
If not, you can continue to search. 

Conventional scanning is a relatively simple concept. 
Each group of users in a conventional system is 
assigned a single frequency (for simplex systems) or 
two frequencies (for repeater systems). Any time one 
of them transmits, their transmission always goes 
out on the same frequency. Up until the late 1980’s 
this was the primary way that radio systems 

 

operated. 

Even today, there are many 2-way radio users who 
operate using a conventional system: 

•

Aircraft 

•

Amateur radio 

•

FRS/GMRS users 

•

Broadcast AM/FM/TV stations 

•

Many business radio users 

When you want to store a conventional system, all 
you need to know is the frequencies they operate 
on. When you are scanning a conventional system, 
the scanner stops very briefly on each channel to 
see if there is activity. If there isn’t, the scanner 
quickly moves to the next channel. If there is, then 
the scanner pauses on the transmission until it is over. 

Simplex systems use a single frequency for both 
transmit and receive. Most radios using this type of 
operation are limited to line-of-sight operation. This 
type of radio is frequently used at construction job 
sites, and with inexpensive consumer radios such as