
PT6808 Service Manual
Appendix 1: Abbreviations
AMP amplify, amplifier
ANT antenna
APC automatic power control
BPF band pass filter
CTCSS continuous tone control squelch system
DCS digital code squelch
DEMOD demodulation
DEV Deviation
E2PROM Electrically Erasable Programmable Read-Only Memory
GND Grounded
HPF high pass filter
IDC instantaneous deviation control
IF intermediate frequency
LED light-emitting diode
LNA low noise amplifier
LPF low pass filter
MCU micro control unit
MIC microphone
MOD modulation
MONI monitor
PLL phase lock loop
PTT push-to-talk
RX receiver
SPK speaker
TCXO temperature control X’ oscillator
TX transmitter
UL un-lock
VCO voltage control oscillator