MM-012099-001, Rev. B
5 INTRODUCTION
The P5400 series portable radio is available in two models: the P5450 Scan model with a limited
•EDACS® (Enhanced Digital Access Communications System) or ProVoice™ Trunked mode
•P25 Trunked Mode
•P25 Digital Conventional Mode
•Conventional Analog mode
The P5400 portables can include all of these modes or just one. Additional modes of operation can be added with software updates.
The P5400 supports a full range of advanced digital trunking features, including voice group calls, priority scanning, emergency calls, late call entry, and dynamic reconfiguration. It performs autonomous roaming for wide area applications. High quality voice coding and robust audio components assure speech clarity.
In the trunked modes, the user selects a communications “operating” system (i.e., EDACS, ProVoice, or P25) and group. While communicating in a trunked mode, channel selection is transparent to the user and is controlled via digital communication with the system controller (e.g. a CSD in an EDACS system). This provides advanced programmable features and fast access to communication channels.
In Conventional Analog mode, the user selects a channel and communicates directly on that channel. A channel is a transmit/receive radio frequency pair.
The exact operation of the radio will depend on the operating mode, the radio’s programming, and the particular radio system. Most features described in this manual can be enabled through programming. Consult your System Administrator for the particular features programmed into your P5400. Then refer to the corresponding section(s) within this manual for feature and operation information.
5.1WATER RESISTANCE
The P5400 series portable radios operate reliably even under adverse conditions. These radios meet MIL-
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