Ranger RCI-2950DX 用户手册

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20. LOCK BUTTON (LOCK): Disables the Frequency Selector Control, 

UP/DOWN buttons on the front control panel and remote UP/DOWN 
buttons on the microphone. Pressing this switch again will re-enable 
the frequency selectors. 

21. UP/DOWN SELECTOR: These buttons are used to increase or 

decrease the frequency digit above the SHF cursor on the display. 

 
 
  
 
 
 
 
 
 
 
 
 
 

 

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1. ANTENNA: This jack accepts a 50 ohms coaxial cable with a PL-259  

style plug. 

 

2. CW  KEY: The CW key is used for Morse Code operation. To operate 

connect a CW key to this jack, and place the mode switch in the CW 
position.  

 

3. EXTERNAL SPEAKER: This jack accepts a 4 - 8 ohm 5W external 

speaker. When an external speaker is connected to this jack, the built-
in speaker is disabled. 

 

4. PA SP.: An 8 ohm, 4W PA speaker may be connected to this jack for 

PA operation.  This feature operates by placing mode selector in PA 
position.  

 

5. POWER:  This socket accepts a 13.8 VDC power cable with built-in 

fuse. The power cord provided with the radio consists of a black wire 
(negative) and a red wire (positive ).