Uniden BCD396T 사용자 설명서

100

Your scanner's Close Call

TM

 feature lets you set the 

scanner so it detects, displays the frequency of, and 
lets you hear a nearby strong radio transmission. You 
can set the scanner so the Close Call feature works "in 
the background" while you are scanning other fre-
quencies, turn off normal scanning while the Close 
Call feature is working, or turn off the Close Call fea-
ture and use the scanner normally. You can set the 
scanner so it alerts you when the Close Call feature 
finds a frequency. You can also set the frequency band 
where you want the scanner to look for transmissions.

To turn Close Call detection on or off, press 

 then 

. When the feature is on, 

 appears on the display 

and normal operation is briefly interrupted about every 
2 seconds.

Notes: 

• The Close Call feature works well for locating the 

source of strong local transmissions such as 
mobile and handheld two-way radios in areas with 
no other strong transmission sources. Several 
factors affect Close Call performance, however. 
Performance is increased with higher transmit 
power, receive antenna tuned to the target band, 
and a low background RF level. Other than the 
antenna, you have no control over these factors, 
but they explain why performance might vary by 
both location and time.

• The Close Call feature cannot detect satellite 

dishes or any transmitter with a frequency above 
or below the frequency ranges listed under “Set-
ting Close Call Options” on Page 101.

• The Close Call feature works better with some 

types of transmissions than others. It might not 
correctly display frequency information for trans-
mitters using a highly directional antenna (such as 
an amateur radio beam antenna) or if there are 
many transmitters operating at the same time in 
the same area.