Technical data

660 Chapter 24
Glossary
Glossary of Abbreviations and Acronyms Used
Glossary
RF Radio Frequency. Any frequency within the
electromagnetic spectrum normally associated with radio
wave propagation.
S-CCPCH Secondary Common Control Physical Channel
S-SCH Secondary Synchronization Channel
SCH Synchronization Channel
SEM Spectrum Emission Mask.
TDR Time Domain Reflectometry.
TSTD Time Switched Transmit Diversity
VSA Agilent Technologies Vector Signal Analyzer.
VSWR Voltage Standing Wave Ratio. A standing wave may be
formed when a wave is transmitted into one end of a
transmission line and is reflected from the other end by
an impedance mismatch. VSWR is the ratio of maximum
to minimum voltage in a standing wave pattern.
W-CDMA Wideband Code Division Multiple Access
8PSK 8 Phase Shift Keying. This is a modulation technique in
which the carrier can exist in one of eight different states.
As such, each state can represent three bits - 000 through
to 111. This modulation technique is used in EDGE
(Enhanced Data rates for Global Evolution).
16QAM
Table 24-1