TYT MD-446 UHF 5W 7.4V 2000mAh TDMA Mobile 2-Way Radio Walkie Talkie Transceiver Description: Feature: Frequency band UHF: 400-480MHz 1000 channels Battery Capacity:2000mAh Dual antenna Remote kill/stun/activate Clock Talkaround Emergency Call Manual Dial Remote monitor Remote check Voice protection Lone Worker Programming password Power-on protection Color LCD display Text messages in digital mode Encryption function Built-in CTCSS/DCS Up to 1000 channels Priority scan Complying with digital protocol ETSI TS 102 361-1,-2,-3 Compatible with Mototrbo Tier 1 2 DTMF decoding and encoding Updated software available for new features Private call, group call, all call in digital mode. Operate in both Digital & Analogue mode ,allows easily migrate from analog to digital Provide clearer voice communications in digital mode ,throughout the coverage area Specification: General Specifications Frequency range UHF:400-480MHz Channel 1000 Channels Channel Spacing 12.5KHz Operating Voltage 7.4V Battery Capacity Li-ion 2000mAh Operating Temperature -30C+60C Store Temperature -40C+85C Antenna Impedance 50 ohm Audio Output Power <=1000mW 16ohm Dimension(H*W*D) 131*61*36mm(Not Including Antenna) Weight 258g Transmitter Output power High<=5W(HI) Low<=1W(Low) Frequency Stability 1.0PPM Adjacent Channel Power <=-60dB Free Time Slot Power TDMA<=57dBm Hum and Noise -40dB 12.5KHz Spurious Radiation Atenna:9KHz-1GHz <=-36dBm 1GHz-12.75GHz <=-30dBm FM Modulation Mode 12.5KHz:11K0F3E 4FSK Digital Mode 12.5KHz(data only):7K60FXD 12.5KHz(data +voice):7K60FXE Modulation Maximum Deviation 2.5KHz 12.5KHz Nonactive Slot Power -57dBm Digital Protocol ETSI TS 102 361-1 -2 -3 Vocoder Type AMBE+2TM Audio Response +1dB~-3dB Modulation BER(Bit Error Rate) <=5% Receiver Analog sensibility 0.35µV/-116dBm(20dB SINDA) 0.22µV/-120dBm(Type) Digital sensibility 0.3µV/-117.4dBm (BER 5%) 0.22µV/-110dBm (BER 1%) Co-channel Rejection >=-12dB Adjacent Channel Selectivity TIA603C:65dB ETSI:60dB Spurious Response TIA603C:75dB ETSI:70dB Rated audio power 1W Audio response +1dB --3dB Rated audio distortion 3%(Type) Spurious Radiation Antenna:9KHz-1GHz <=-57dBm 1GHz-12.75GHz <=-47dBm Package Include: 1 x TYT MD-446 Digital Mobile Radio (DMR) 2 x Antenna 1 x Li-ion Battery 1 x Belt Clip 1 x Charger EU/US 1 x Adapter 1 x User's Manual