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Modern Trends in Land Mobile Digital Radio Development Standards, Markets and Technologies
PracTel Inc., March 2010, Pages: 228
This report addresses technologies, applications and markets for digital Land Mobile Radio (LMR). Two categories of technologies were considered:
1. P25 and TETRA. These technologies are standardized by major organizations, such as TIA, FCC and ETSI; and many public safety organizations are equipped with P25 and TETRA radios. The P25 technology won recognition in the U.S. and Canada; TETRA was developed in Europe, and has many installations around the globe.
2. NXDN and MOTOTRBO. These technologies were born when P25 and TETRA technologies were in the relatively mature stage. They are a direct response on users and standard organizations requirements (such as more efficient use of the frequency spectrum and cost-efficiency). These technologies were introduces by vendors (NXDN – Icom and Kenwood, and MOTOTRBO by Motorola.) Though, so far, applications of these radios are not concentrated on public safety, there is nothing that can exclude them in a future (with further acceptance by the FCC and other organizations). The NXDN technology cannot guarantee some sophisticated characteristics of P25/ TETRA technologies; at the same time, NXDN set of parameters is more than sufficient for the majority of traditional LMR applications.
The report addresses a phased approach to the development of P25 and TETRA radios; this approach allows gradual migration from existing LMR networks, based mostly on FM analog technology, to the modern all-digital technology. Currently, only Phase I-compliant radios are being deployed; P25 Phase II systems are planned for shipping only in a couple of years, and TETRA Phase II is in more developed stage; with Phase III/Project 25/34-MESA technology mostly in the development stage.
NXDN radio development is a result of joint efforts of two companies, Icom and Kenwood and it is based on the FDMA technology. The companies developed two lines of products, IDAS (Icom) and NEXEDGE (Kenwood); these radios were implemented with many advanced technological features, including 6.25 kHz channels. At the same time, Motorola introduced its MOTOTRBO line of digital LMRs, which also utilized newer technologies and is based on the TDMA access.
Note that all three companies are also very active in the P25 market, and are established vendors of P25 equipment, with Motorola in the leading position. At the present time, NXDN and MOTOTRBO products are aiming for the commercial segments of the LMR market, while P25 technology is mainly utilized in the PSC market; TETRA radios are already having a wide commercial exposure.
Though the cost efficiency of the P25 and TETRA trunked systems is not so great in comparison with older analog systems, it is expected that the cost will go down with proliferation of the systems. NXDN and MOTOTRBO systems are more cost-effective than P25/TETRA radios.
Target Audience:
This report is important for organizations using LMR. They need to understand the market dynamics and to be familiar with vendors’ portfolios to make a right choice in selection of equipment.
For LMR vendors, this report provides valuable information on competition. It also supports these vendors with the market assessment.
Research Methodology:
Considerable research was done using the Internet. Information from various Web sites was studied and analyzed; evaluation of publicly available marketing and technical publications was conducted. Telephone conversations and interviews were held with industry analysts, technical experts and executives. In addition to these interviews and primary research, secondary sources were used to develop a more complete mosaic of the market landscape, including industry and trade publications, conferences and seminars.
The overriding objective throughout the work has been to provide valid and relevant information. This has led to a continual review and update of the information content.
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