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General Specification Frequency Range VHF:******4MHZ UHF:******0MHZ, ******0MHZ Operating Voltage *3.8V DC cathode grounded Operate Mode Co-channels or dis-channel simplex CTCSS/DSC CTCSS:*2 DCS:**4 Memory Channels **0 Channels Frequency Stability ±2.5PPM Antenna Impedance *0Ω Operating Temperature 　**0°C to **0°C Weight(approx.) ***0g(Except antenna ) Dimension(approx.)(Except antenna ) **0**3***7mm Transmitter(Testing under TIA/EIA***3 standard) Output Power *0W/*0W Audio Response *1/*3dB Frequency Stability ±2.5ppm Spurious Radiation < *0dB Modulation Distortion ≤5% Channel Spacing ≤*5KHz (width)/*2.5KHz(narrow) Adjacent channel power ≥*5dB/*5KHz　 Receiver(Testing under TIA/EIA***3 standard) Sensitivity ≤0.8uV Squelch Sensitivity ≤0.2uV Adjacent channel selectivity ≥*0dB Intermodulation Rejection ≥*0dB　 Audio output power **0mW Audio Distortion ≤5% Co-channel restrain ≥*0.8dB　 Blocking ≥*4dB