1.Product Information NC-8800(two way radio,walkie talkie,interphone) Model NC-3100Frequency RangeVHFUHF136-150MHz 150-174MHz350-390MHz 400-430MHz440-470MHz 480-520MHzChannel Capacity16PLL Channel Spacing12.5/25KHzBattery Voltage7.4V DC (Li-ion Battery Pack)Antenna Impedance50ΩOperating Temperature2060Frequency Stability±2.5PPMDimensions (with Battery)93×53×30mmWeight (with Battery)195gStandard PackageRadio with Standard Accessories Transmitter(Measurements made per TIA/EIA-603)RF Power Output4/5WModulation TypeF3EMaximum Deviation≤5.0KHz(W) ≤2.5KHz (N)Spurious Emission≤65dBModulation Distortion≤5%(300-3000Hz)FM Noise≤-45dB(W) ≤- -40dB (N) Receiver(Measurements made per TIA/EIA-603)Circuit TypeDouble-conversion SuperheterodyneIfs38.850MHz & 450KHzSensitivity(12dB SINAD)0.2μV (W) /0.25 (N)Squelch Selectivity0.15μV (W)/0.2 (N)Adjacent Channel Selectivity≥65dB (W)/ ≥60dBIntermodulation≥65dBSpurious Rejection≥60dBImage Rejection≥65dBFM Ham And Noise≤-45dB(W) ≤- -45dB (N)Modulation Type16KOF3E/11 KOF3EOperating Bandwidth≤±7KHz / ≤±5 KHzAF Output @ 4 Ohms0.5 WAudio Distortion≤5% 2.Details Pics 3.Certificates