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
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