NSW-5
Disassembly and Troubleshooting Instructions
PAMS Technical Documentation
Page 25
Issue 1 10/00
Nokia Mobile Phones Ltd.
Abbreviations used in Troubleshooting charts
BB
Baseband
f
Frequency of signal (measured with spectrum analyzer)
IF
Intermediate Frequency
LO
Local Oscillator
P
Power of signal in desibels compared to a milliwatt (dBm)
(measured with spectrum analyzer)
PA
Power Amplifier
PWB
Printed Wiring (Circuit) Board
PLL
Phase Locked Loop
RF
Radio Frequency
RX
Receiver
T
Time (between pulses)
TX
Transmitter
UHF
Ultra High Frequency
V
Voltage of signal (measured with oscilloscope)
VCO
Voltage controlled oscillator
VHF
Very High Frequency
AF
Audio Frequency