Digital mobile radio (#DMR) is a digital radio standard for voice and data transmission in non-public radio networks. It was created by the European #Telecommunications Standards Institute (ETSI), and is designed to be low-cost and easy to use. DMR, along with P25 phase II and NXDN are the main competitor technologies in achieving 6.25 kHz equivalent bandwidth using the proprietary AMBE+2 vocoder. DMR and P25 II both use two-slot #TDMA in a 12.5 kHz channel, while NXDN uses discrete 6.25 kHz channels using frequency division and TETRA uses a four-slot TDMA in a 25 kHz channel.
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Index DMR
0:00 Intro of OSCAR Convention
0:06 Introduction
1:01 DMR Projection
1:16 What is DMR?
1:46 Are there any special modes of operation of DMR?
2:07 What is trunking
2:27 Is DMR UHF or VHF?
3:08 What is DMR Zone?
3:26 What are the features of DMR?
3:52 What is TDMA?
4:08 Conclusion
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22 май 2024
