What are the advantages and limitations of Tetra technology and LTE technology in emergency communication?

Tetra technology (Territorial Trunked Radio) Advantages: High reliability: Tetra is designed specifically for mission critical communication and provides highly reliable voice communication services. Integration: The Tetra system can integrate voice, data, and SMS services, supporting multiple communication methods. Priority and preemption: In emergency situations, Tetra can assign priority to key users to ensure priority transmission […]

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Talinfone 8800

Ham Two Way Radio Bluetooth Program GPS Location APRS 136-520Mhz Multiband Receiver USB Type-C Charge Wireless Comminactor Function: GPS: North latitude, East longitude, Altitude loction Sharing,Measuring Distance Frequency Range: 6 Bands 76-108MHz(FM Radio RX) 136-174MHz(RX/TX) 175-220MHz(RX) 230-250MHz(RX) 330-350MHz(RX) 350-400MHz(RX/TX) 400-520MHz(RX/TX) -Frequency /CTCSS Detection -999 Memory Channel -1.77inch LCD Color Display -Non-CTCSS(60-260HZ)&DCS(D0000N/I-D777N/I) -VOX Function -Emergency Function -Scan Function -Battery Save

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Talinfone T56

Talinfone T56 GPS Wifi 4G Network Radio Zello Real PTT Android Walkie Talkie Talinfone T56 4G Network Transceiver Zello Walkie Talkie Long Range Gps 6800mAh Mobile Ham POC Radio Amateur Android Walkie Talkie 50km with Desk Charger Docking   Features: *2G/3G/4G/LTE *WI-FI Support *Bluetooth V4.0 *Android V5.1 Operate system *128*160px 1.77 SPI Color LCD screen

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Talinfone T50

Talinfone T50 4G Network Transceiver Zello Walkie Talkie Long Range Gps 5200mAh Mobile Ham POC Radio Amateur Android Walkie Talkie 50km Talinfone T50 GPS Wifi 4G Network Radio Zello Real PTT Android Walkie Talkie *2G/3G/4G/LTE *WI-FI Support *Bluetooth V4.0 *Android V5.1 Operate system *128*160px 1.77 SPI Color LCD screen *Micro USB charging port *FM Radio receiver *RAM 4gb+Rom4gb *NSN8909 Project *Zello App Talk *GPS location and

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Talinfone L2402

L2402 Android DMR Tier II 4G LTE GSM WCDMA Phone Public Network Walkie Talkie Features: Battery Capacity: 4500mAh Camera DMR / UHF Intercom Large Speaker Frequency Range: DMR(400-470MHz) 3W Analog(400-470MHz) 3W Basic Parameter L2402 4G Rugged Smart Specification ◇ Project information ◇ Product name Three-proof intelligent intercom ◇ Basic parameters ◇ Launch date ◇ Type LTE 4G smart terminal , IP6 8 three-proof terminal , 3W digital-analog integrated intercom terminal, explosion-proof equipment

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Talinfone P5

Talinfone P5 DMR 2.8 Inch POC Radio Android 4G UHF Digital/Analogue Walkie Talkie Mobile Phone 1) 2W DMR Digital Walkie Talkie 2) Support Zello POC 3) Built-in NFC 4) 5300mAh Li-ion Battery 5) 5MP Back Camera 6) SOS Button 7) φ36 2W Loudspeaker 8) Charging Base Optional 9) Support Real-PTT Specification: Model No. Talinfone P5 Waterproof Grade IP65 waterproof (IP68 optional for

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Talinfone CB-58 

Talinfone CB-58 Features: Filtre Hi-Cut Ecran LCD TFT (couleurs) 4 Watts AM/FM 8 Canaux memoires Encodeur/decoder CTCSS/DCS Encodeur DTMF Squelch automatique (ASO ) Squelch manuel parametrable AM/FM Citizen band, multinormes europeennes Filtres NB/ANL Fonction TOT (anti bavard) Night lighting lamp Keyboard lock Reglage du gain en reception (RFgain) Canal9/19 Recherche automatique de canal occupe(Scan)  

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Talinfone F70

Talinfone F70

Talinfone F70 2.4 Inch 4000mAh Big Battery 4G Android Walkie Talkie Digital Two Way Radio 1) 4G LTE Push To Talk 2) 4000mAh Big Battery 3) Novel Appearance Design 4) 2W Loudspeaker 5) One Key to Turn On Flashlight Model No. Talinfone F70 Waterproof Grade IP54 Net Weight 189g (Including battery) Shell Material Plastic Service

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