MM-008212-001, Rev. A

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5 INTRODUCTION
The P5300 series portable radio is available in two models: the P5350 Scan model with a limited 6-button
front-mounted keypad and the P5370 System model with a 15-button DTMF front-mounted keypad. The
900 MHz P5300 portable radio delivers end-to-end digital voice and IP data communications. It is
designed to support multiple operating modes including:
OpenSky® Trunked mode (OTP)
EDACS® Trunked mode
Conventional Analog mode
The P5300 portables can include all of these modes or just one. Additional modes of operation can be
added with software updates.
The P5300 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., OpenSky or EDACS)
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. base station in an OpenSky system
or 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 P5300.

5.1 WATER RESISTANCE

The P5300 series portable radios operate reliably even under adverse conditions. These radios meet MIL-
STD-810F specifications for wind driven rain, humidity, and salt fog.