Sub Committee TR-45.5 has the authority to develop performance, compatibility, and interoperability standards for Spread Spectrum Digital wireless access systems that support any combination of international, public, non-public, or residential mobile and personal communications.

Mobile and Personal Communications Standards Subcommittee TR-45.8 is assigned the authority to develop performance, compatibility, and interoperability standards for equipment that supports Wireless Packet Data.

The scope of sub-committee TR-8.1 is the definition of test conditions, characteristics of test equipment, methods of measurement, and technical performance characteristics for Private Land Mobile Radio transceivers.

The Air Interface Subcommittee shall establish standards enabling interoperable implementations of portable, mobile, and base station equipment to send and receive digital information over a narrow band radio channel via…

Definition of terms, methods of measurement, and equipment specifications for radiating devices and associated components in public and private Land Mobile radio systems. “Associated components” include all components that lie…

To establish common terms, definitions, and methods of measurement to aid interested parties in evaluating adherence to Federal Communication Commission guidelines concerning Radio Frequency exposure.

Definition of terms and methodology for the modeling, simulation, and empirical performance verification of land mobile radio systems.

Establish standards defining interoperability, interconnection and compatibility between Private Land Mobile Radio services and wireline systems. Wireline system interfaces may include, but are not limited to, console, fixed station, intersystem,…

The scope of the TR-8.21 Land Mobile Radio (LMR) Intrinsic Safety (IS) Sub-Committee includes, but is not limited to, the development of technical proposals and papers on IS topics of interest to standards development organizations, product testing and certification organizations, relevant professional groups, and relevant government agencies.

The Compliance Assessment Subcommittee shall be responsible for the resolution of compliance assessment related questions.

The Encryption Working Group was established to develop the encryption standards for public-safety land mobile communication.

The Vocoder Working Group was created to develop and support Vocoder standards for Project 25 compatible land mobile radio equipment. It is the goal of these standards to sufficiently define…