Glossary-2
Glossary
codeplug
Firmware that contains the unique personality for a system or device. A
codeplug is programmable and allows changes to system and unit
parameters.
See also firmware.
coder/decoder
A device that encodes or decodes a signal.
CPS
See Customer Programming Software.
Customer
Programming
Software
Software with a graphical user interface containing the feature set of an
ASTRO radio.
D/A
See digital-to-analog conversion.
DAC
See digital-to-analog converter.
Data terminal
equipment
Data terminal equipment; for example, a computer.
default
A pre-defined set of parameters.
digital
Refers to data that is stored or transmitted as a sequence of discrete
symbols from a finite set; most commonly this means binary data
represented using electronic or electromagnetic signals.
See also
analog.
digital-to-analog
conversion
Conversion of a digital signal to a voltage that is proportional to the input
value.
See also A/D.
digital-to-analog
converter
A device that converts digital data into analog signals.
See also ADC.
Digital Private-Line
A type of digital communication that utilizes privacy call, as well as
memory channel and busy channel lock-out to enhance communication
efficiency.
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.
digital signal
processor code
Object code executed by the Digital Signal Processor in an ASTRO
subscriber radio. The DSP is responsible for computation-intensive
tasks, such as decoding ASTRO signaling.
DPL
See Digital Private-Line. See also PL.
DSP
See digital signal processor.
DSP code
See digital signal processor code.
DTE
See Data terminal equipment.
EEPOT
Electrically Programmable Digital Potentiometer.
Term
Definition
Summary of Contents for APX 2000
Page 1: ...APXTM TWO WAY RADIOS APX 1000 APX 2000 APX 4000 APX 4000Li DETAILED SERVICE MANUAL ...
Page 4: ......
Page 6: ...iv Document History Notes ...
Page 8: ...Notes vi Commercial Warranty ...
Page 10: ...Notes ...
Page 22: ...xiv List of Figures Notes ...
Page 226: ...6 64 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Page 688: ...Index 4 Index Notes ...
Page 690: ...ii Notes ...
Page 700: ...xvi List of Figures Notes ...
Page 806: ...5 50 Troubleshooting Charts PA Failure Notes ...
Page 1008: ...8 178 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 84012621001 Notes ...
Page 1062: ...8 234 Schematics Boards Overlays and Parts Lists Keypad Board M2 and M3 PC000261A01 Notes ...
Page 1064: ...ii Notes ...
Page 1068: ...Notes A 4 EMEA Warranty Service and Technical Support Further Assistance From Motorola ...
Page 1090: ...Glossary 10 Glossary Notes ...
Page 1094: ...Index 4 Index Notes ...
Page 1095: ......