Communications Radio User Manual
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4 WIRE MIC CABLE 
  Pin Number  Mic Cable Lead   
 1 Audio Shield  
 2 Audio Lead  
 3 Transmit Control  
 4 Receive Control  
 Figure 2-3 Your Transceiver Microphone Schematic 
Figure 2-4 Microphone plug pin numbers viewed from rear of pin receptacle. 
RCI-6300F HP 
RCI-6300F TB 
CHAPTER 3 
CIRCUIT 
DESCRIPTION 
3.0 INTRODUCTION 
This section explains the technical theory of operation for the RCI-6300F HP / RCI-6300F TB mobile 
transceiver. 










