PX-58/28(UHF/VHF)Specification 1) Simple operation, easy to carry and wide range to use 2) Tonal output with loud and clear3) 16 storage channels for your easy use 4) Computer programming5) Sturdy and durability better6) Power saving and to extend for using time of batteries 7) Low battery warning8) Built-In CTCSS9) Frequencies: 400-430MHz, 350-370MHz, 450-470MHz, 470-490MHz /136-150MHz, 150-174MHz (others optional)10) Working temperature: -30oC to＋60oC11) Working voltage: 7.2VDC ( 20%)12) Contact range up to 5km in open country13) Output power: 1-5W14) Dimensions: 140 x 60 x 36mm (not include antenna)15) Weight: about 330gTECHNICAL SPECIFICATIONGENERALFrequency Range:136―150，150-174,400-430,430 450MHzWorking Temperate－20℃―＋50℃Operating VoltageDC 7.2VOperate Mode:Simplex or Semi-duplex Dimension100mm 55mm 32mm (Not included Antenna)Weight220g (Including battery)Antenna impedance50 TRANSMITTERFrequency Stability 2.5PPMOutput Power ≦5WMax Frequency Deviation ≦5KHzAudio Distortion≦3%Modulation Character +3dB -3dB Adjacent Channel Power 65dBSpurious Radiation 7.5UWOccupied Bandwidth 16KHzRECEIVERRF Sensitivity＜0.2UVAudio Distortion ≦3%Audio Response+2dB -10dB Adjacent Channel Selectivity 60dBIntermodulation Rejection 65dBSpurious Response 70dBBlocking 80dB