This standard provides definition and methods of measurement for radio equipment used in the Private (Dispatch) Land Mobile Services that employs the Two-Slot Time Division Multiple Access (TDMA) protocol, for transmission and reception of voice or data using digital techniques, with or without encryption, with a frequency of 1 GHz or less. The definition and description of the system in which this equipment operates is given in TSB-102.BBAA, Project 25 TDMA Overview document. The physical layer description is given in TIA-102.BBAB, Project 25 Phase 2 Two-Slot Time Division Multiple Access Physical Layer Protocol Description. The media access control is given in TIA-102.BBAC, Project 25 Phase 2 Two-Slot TDMA Media Access Control Description.

Use of this standard is encouraged for any application of similar equipment, and may be applicable to equipment other than those listed above. However, this standard is not intended to cover transceiver equipment employing any or all modulation types or access methods. Therefore, the applicability of this document to digital transceiver equipment other than that called out in the scope should be carefully examined.