The LMR 100 series provides a primer for anyone needing to design a land mobile radio system. The series, which is targeted to systems engineers, field engineers and radio technicians, covers the following topics:
- Understanding LMR user needs;
- The LMR user RFP process and technology assessment;
- RF planning;
- Connectivity and backhaul;
- Dispatch, command and control;
- Radio site surveys, site selection, and field engineering;
- Radio frequency interference;
- Installation processes and standards;
- Program and project management; and
- Post-system project acceptance.
We welcome your feedback on these articles and also your suggestions on future topics.
Ira Wiesenfeld, P.E., is a consulting engineer who has been involved in the radio communications business since 1966. He is a senior member of the IEEE and has been a licensed amateur radio operator since 1963. He can be reached at firstname.lastname@example.org.
Robert C. Shapiro, P.E, is the senior manager-systems engineering for Cassidian Communications, an EADS Company. He serves on the TIA TR8 committee as TR8.18 vice chair and is a senior member of the IEEE. He can be reached at email@example.com.
Next: In the LMR 200 series, we apply a real-world perspective to LMR system design and engineering.
Part 1: Basic LMR and FCC definitions
Part 2: Understanding LMR user needs
Part 3: Conducting a user-needs survey
Part 4: Understanding the LRM procurement process
Part 5: System engineering begins with RF planning
Part 6: Receiver planning and noise interference
Part 7: How to connect LMR sites
Part 8: Understanding dispatch communications
Part 9: How to select a suitable LMR site
Part 10: How to deal with RF interference
Part 11: More causes of RF interference
Part 12: Installing the LMR system
Part 13: Choosing the LMR project, program managers
Part 14: Maintaining the LMR system