NARDA NRA-3000 RX Bedienungsanleitung Seite 46

10 Glossary
Isotropic
measurement
Max
Max Avg
Min
Min Avg
P-CPICH
RBW
Result Type
RL
Tetra
UMTS
VBW
WiMax
WLAN
42
Maximum
Maximum Average
Minimum
Minimum Average
Primary Common Pilot Channel
Resolution bandwidth
Result (evaluation) type
Reference Level
Terrestrial trunked radio
Universal Mobile
Telecommunications System
Video bandwidth
Worldwide Interoperability for
Microwave Access
Wireless Local Area Network
NRA Series
Measurement of radiation propagated equally
in all directions in three-dimensional space.
Maximum value of all the measured values
Maximum value of all the averaged measured
values
Minimum value of all the measured values
Minimum value of all the averaged measured
values
UMTS control channel
Ability to distinguish between signals.
Only signals with frequency differences
greater than the defined resolution bandwidth
can be distinguished from each other. A
correspondingly small RBW must be chosen
for measuring signals that are very close
together in frequency. A larger RBW can be
selected for measuring broadband signals.
The indicated level will be too low if the RBW
is too small.
Individual signals cannot be separated if the
RBW is too large.
Defines how the values recorded are
evaluated.
The system sensitivity depends on the input
attenuator setting. This is determined by the
Reference Level. High measurement
sensitivity avoids falsification of the results
due to intrinsic noise.
Standard for digital trunked radio used as a
universal platform for various mobile wireless
services for users with special security needs,
such as BOS, industry, public transport,
airports, military, etc.
Third-generation mobile wireless standard
(3G)
The VBW is used to smooth signals, generally
to reduce noise. The selected VBW affects the
sweep time. The smaller the VBW, the greater
the smoothing of noise but the longer the
sweep time. When measuring unknown
signals, the VBW should be reduced in stages
from the largest to the smallest value.
Radio system defined by IEEE Standard
802.16 for both fixed locations (e.g. radio
links) and mobile devices.
Wireless local area radio network defined by
the IEEE-802.11 standard.
Narda