Uniden BC355C 사용자 설명서

Turn the scanner off before disconnecting the power. 

Always press each keypad button firmly until you hear the entry 
tone for that key entry. 

If strong interference or electrical noise is received, relocate the 
scanner or its antenna away from the source of the noise. A higher 
elevation, if possible, may provide better reception. You might also 
try changing the height or angle of the telescoping antenna. 

Do not use the scanner in high-moisture environments such as the 
kitchen or bathroom. 

Avoid placing the unit in direct sunlight or near heating elements 
or vents. 

Disconnect the power to the unit before cleaning.