RT3S Dual Band DMR Radio GPS/Non-GPS Digital walkie talkies
RT3S dual band digital ham radio uses Digital Mobile Radio (DMR) Tier 2 Standard protocol. It is compatible with the popular MOTO TRBO series Tier I and II using standard encryption, It is also compatible with any existing analog two-way radio operating on the supported UHF and VHF frequencies for easy migration to digital technology. It is compatible with the popular MOTO TRBO series Tier I and II using standard encryption, as well as other makes and models of DMR supported radios. Up to 3000 channels ，for extremely complex organizational communications. lone worker is an employee who performs an activity that is carried out in isolation from other workers without close or direct supervision.Helping people minimize risk and injury. GPS gives you a clear idea of your location even in the wild. Use it to find your way or to help others find you. General specifications Frequency 136-174&400-480MHz Channels 3000 Frequency Stability ±1ppm Operating Temperature -30℃~+60℃ Operating Voltage 7.4V DC Dimension 131 x 61 x 36mm Weight 258g (with battery) Battery Type Li-ion Battery Capacity 2000mAh Antenna Impedance 50Ω Audio Impedance 1W@16Ω Channel Spacing 12.5KHz Vocoder AMBE+2™ Transmitter Power High≤5W, Low≤1W Frequency Stability ±1.0ppm Adjacent Channel Power ≤-60dB Free Time Slot Power TDMA:≤57dBm Hum and noise -40dB@12.5KHz Spurious radiation Antenna:9KHz-1GHz ≤-36dBm 1GHz-12.75GHz ≤-30dBm FM modulation mode 11K0F3E@12.5KHz 4FSK digital mode 12.5KHz(data only):7K60FXD12.5KHz(data and voice):7K60FXW Modulation maximum deviation 2.5KHz@12.5KHz Nonactive slot power -57dBm Digital Protocol ETSI-TS102 361-1,-2,-3 Audio Response +1~-3dB Modulation BER(bit error rate) ≤5% Receiver Analog Sensibility 0.2µV@12dB SINAD Digital Sensibility 0.25µV(BER:5%) Adjacent Channel Selectivity ≤-60dB@12.5KHz Intermodulation ≤60dB Spurious Response ≥70dB Audio Response +1~-3dB Rated Audio Distortion ＜5% Rated Audio Power 1W Modulation ≥45dB@25KHz≥40dB@12.5KHz