Displayed by the radio after three failed attempts to unlock
the radio.The radio must be powered off and on prior to
another attempt.
Digital Private Line
A type of digital communications that utilizes privacy call,
as well as memory channel and busy channel lock out to
enhance communication efficiency.
Dispatcher
An individual who has radio-system management duties
and responsibilities.
Digital Signal Processor
A microcontroller specifically designed for performing the
mathematics involved in manipulating analog information,
such as sound, that has been converted into a digital form.
DSP also implies the use of a data compression technique.
ESN
Electrical Serial Number.
Hang up
Disconnect.
Liquid-Crystal Display (LCD)
An LCD uses two sheets of polarizing material with a liquid-
crystal solution between them. An electric current passed
through the liquid causes the crystals to align so that light
cannot pass through them.
Light Emitting Diode (LED)
An electronic device that lights up when electricity is
passed through it.
MDC
Motorola Solutions Digital Communications.
Menu Entry
A software-activated feature shown at the bottom of the
display. Selection of a feature is controlled by the
programming of the buttons on the side of the radio.
Monitor
Check channel activity by pressing the Monitor button. If
the channel is clear, you hear static. If the channel is in
use, you hear conversation. It also serves as a way to
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