Wouxun-TECHNICAL SPECIFICATION Intergration Frequency Range suitable for different countries or areas 136-174MHz & 400-470MHz 136-174MHz & 400-480MHz 136-174MHz & 420-520MHz 144-146MHz & 430-440MHz 144-148MHz & 420-520MHz Step 5KHz/6.25KHz/10KHz/12.5KHz 25KHz/50KHz/100KHz Channel Number 999 Work Mode F2D/F3E Operating Temperature -20℃～+40℃ Voltage 7.4VDC Antenna Impedance 50Ω Weight 490 g Size 125 x 62 x 33 MM Receiver Wide Narrow Adjacent Channel Selectivity ≤70dB ≤60dB Inter Modulation ≤65dB ≤60dB Spurious Response ≤70dB ≤70dB Audio Response +1~-3dB(0.3~3KHz) +1~-3dB(0.3~3KHz) Signal to Noise Ratio ≥45dB ≥40dB Audio Distortion ≤5% Audio Power ≤500mW Sensitivity UHF/VHF：0.25µV（12dB SINAD） Transmitter Wide Narrow Adjacent Channel Selectivity ≥70dB ≥60dB Type of Modulation 16K F3E 11K F3E Spurious ≥60dB ≥60dB Audio Response +1~-3dB(0.3~3KHz) +1~-3dB(0.3~3KHz) Max Frequency Deviation ±5KHz ±2.5KHz Frequency Stability ±2.5PPM Audio Distortion ≤5% Output Power UHF H:4W , L:1W VHF H:5W , L:1W Dual Bands , Large Color Screen , Two Way Radio KG-UV8D