Motorola ASTRO XTL 5000 Basic Service Manual page 185

Glossary
This glossary contains an alphabetical listing of terms and their definitions that are applicable to
ASTRO portable and mobile subscriber radio products. All terms do not necessarily apply to all
radios, and some terms are merely generic in nature.
Term
A/D
ADC
ALC
analog
analog-to-digital
conversion
analog-to-digital
converter
APCO 25
Association of
Public-Safety
Communications
Officials
automatic level
control
band
BBP
baseband interface
port
BGA
See analog-to-digital conversion.
See analog-to-digital converter.
See automatic level control.
Refers to a continuously variable signal or a circuit or device designed
to handle such signals. See also digital.
Conversion of an instantaneous dc voltage level to a corresponding
digital value. See also D/A.
A device that converts analog signals into digital data. See also DAC.
A standard of digital two-way radio communications, developed by the
Association of Public-Safety Communications Officials, providing
maximum radio spectrum efficiency; competition in system life cycle
procurements; effective, efficient and reliable intra-agency and inter-
agency communications; and "user friendly" equipment. See also
Association of Public-Safety Communications Officials.
An association dedicated to an industry-wide effort (known as APCO 25
or Project 25) to set the recommended voluntary standards of uniform
digital two-way radio technology for public safety organizations. This
allows radio interoperability with multiple vendor products which are all
APCO 25 compatible. See also APCO 25.
A circuit in the transmit RF path that controls RF power amplifier output,
provides leveling over frequency and voltage, and protects against high
VSWR.
Frequencies allowed for a specific purpose.
See baseband interface port.
Synchronous serial interface to the transceiver board used to transfer
transmit and receive audio data.
See ball grid array.
Definition
Glossary