RELM Communications Inc RPU499A ユーザーズマニュアル

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Brief Introduction 
 
 
(1) ANTENNA 
(2) CHANNEL SELECTOR KNOB 
Used to select channel and squelch level. In addition, it can be programmed by the dealer to 
delete undesired channels from scan list or to select a CTCSS frequency.  
(3) LED INDICATOR 
 
Is red when transmitting 
 
Is green when receiving 
 
Flashes red when the battery voltage is low and approaching the cut-off point 
 
Flashes orange, when the radio receives proper DTMF or Two Tone decode signals. 
(4) ON-OFF/VOLUME KNOB 
Rotate the volume control knob clockwise to turn the unit “on” and fully counter clockwise 
to turn the unit “off”. Increase or decrease volume by adjusting the volume control 
accordingly. 
(5) SPEAKER 
(6) MICROPHONE 
(7) LCD 
Used to display channel and operation status.  
(8) 
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PROGRAMMABLE SOFT KEYS   
Used to enable auxiliary functions. Press each key to enable its corresponding function.   
(9) KEYPAD 
Used to enter, store or send DTMF codes.  
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