8 TP9100 Service Manual
© Tait Electronics Limited May 2005
CSO Customer Service Organisation
CTCSS Continuous-tone-controlled Subaudible Signaling
DAC Digital-to-Analog Converter
DC Direct Current
DSP Digital Signal Processor
DTMF Dual-Tone Multi-Frequency
EPTT External PTT (Press-To-Talk)
ESD Electrostatic Discharge
FCL Frequency Control Loop
FE Front-End
FEC Forward Error Correction
FPGA Field-Programmable Gate Array
GPIO General Purpose Input/Output
GPS Global Positioning System
GUI Graphical User Interface
IC Integrated Circuit
IPN Internal Part Number
IF Intermediate Frequency
IQ In-Phase and Quadrature
ISC International Service Center
LCD Liquid-Crystal Display
LED Light-Emitting Diode
LNA Low-Noise Amplifier
LO Local Oscillator
LPF Low-Pass Filter
NPN Negative-Positive-Negative
P25 Project 25
PA Power Amplifier
PCB Printed Circuit Board
PLL Phase-Locked Loop
PNP Positive-Negative-Positive
Abbreviation Description
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