Retevis RT3S DMR Digital Walkie Talkie VHF UHF GPS APRS 5W Ham Radio Stations Walkie-talkies Professional Amateur Two-Wa

Specifications Frequency 136 174400 480MHzChannel 3000Frequency stability 1 ppmWorking temperature 30℃ 60℃Working voltage 7 4VDC Size 131x61x36mmWeight 258g including battery Battery type lithium ionBattery capacity 2000mAhAntenna impedance 50 ωAudio impedance 1W 16ΩChannel spacing 12 5KHzVocoder ambe 2SenderPower high ≤5W low ≤1WFrequency stability ±1 0ppmAdjacent channel power ≤ 60dBIdle time slot power TDMA ≤ 57 DBMBuzz and noise 40dB 12 5kHz Stray radiation antenna 9KHz 1GHz ≤ 36dBm 1GHz 12 75GHz ≤ 30dBmFM modulation mode 11K0F3E 12 5KHz4FSK digital mode 12 5KHz data only 7K60FXD12 5KHz data and voice 7K60FXWMaximum modulation deviation 2 5KHz 12 5KHzPassive time slot power 57dBmDigital protocols ETSI TS102 361 1 2 3 Audio response 1 3dBModulation BER bit error rate ≤5 RecipientAnalog sensitivity 0 2v 12dbssinadDigital sensitivity 0 25 V BER 5 Adjacent channel selectivity ≤ 60dB 12 5kHz Intermodulation ≤60dBStray response ≥70dBAudio response 1 3dBRated audio distortion 5 Rated audio power 1WModulation ≥45dB 25KHz≥40dB 12 5KHzFeatures GPSUse time division multiple access TDMA digital functionDouble slot repeaterPoint to point double time slotFirmware can be upgraded Work aloneEncryption functionCompatible with mototrbotier ⅰⅱSingle call group call and full callAnalog and digital combinationRemote kill stun and activate Up to 3000 channelsTransmission interruptionGroup Call Matching Mixed Private Phone Mat