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INTRODUCTION
The EM-4800 is a synthesized, microprocessor-based, FM
mobile which provides reliable two-way communications in
the Enhanced Digital Access Communications System (EDACS)
trunking environment, GE-MARC trunking system and conven-
tional communications systems.
In the EDACS or trunked system mode, the user selects a
communications system and group. Channel selection is
transparent to the user and is controlled via digital communi-
cation with the system controller. This provides advanced
programmable features and fast access to communication
channels.
In the conventional mode, the user selects a channel and
communicates directly on that channel. A system refers
to a set of channels. A channel is a transmit /receive radio
frequency pair.
The exact operation of the radio will depend on the operating
mode, the radio programming and the particular radio system.
Most features described in this manual may be enabled or
disabled through programming. Consult the system administra-
tor for the particular features that are programmed into the
radio.
This manual provides instructions for operating in either of the
three systems (EDACS, GE-MARC, conventional). A separate
section is provided for each system with a complete set of
instructions for operating the radio within that system.
