|    Frequency Ranges | 
                 VHF: 66-88 / 136-174 /  245-246 MHz  
                     UHF:400-470 / 450-520 MHz | 
               
          
              |    Channel Spacing | 
              Wide : 25KHz  , Narrow : 12.5KHz | 
               
          
              |    Output Power  | 
              VHF=5W / 1W , UHF=4W / 1W | 
           
          
              |    Memory Channels | 
              128 | 
           
          
              |    Voltage | 
               7.4 VDC | 
               
          
              |    Working Temperature | 
              -30℃ ~ +60℃ | 
               
          
              |    Antenna Impedance | 
              50 Ω | 
           
		   
           | 
      
	  
      
          
              |    Audio Distortion  | 
              ≤5%  | 
               
          
              |    Modulation Type | 
              FM(F3E) | 
               
          
              |    Max. Frequency Deviation  | 
              ≤5 KHz | 
               
          
              |    Adjacent Channel Selection  | 
              ≥65 dB  | 
               
          
              |    Frequency Stability | 
              ±2.5 PPM | 
               
          
              |    Sensitivity (12dB SINAD)  | 
              ≤0.2 µV  | 
               
          
              |    Audio Output power  | 
              ≥500 mW  | 
               
          
              |    Spurious Radiation  | 
              ≤-60 dB | 
               
          
              |    Waterproof | 
              IP55 | 
           
		   
       |