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Spectrum Master™ Compact Handheld Spectrum Analyzer Features
IEEE 802.16 Mobile WiMAX Signal Analyzers (Options 0066, 0067, 0037)
RF Measurement – Preamble Power
High or low values will create larger areas of cell-to-
cell interference and create lower data rates near cell
edges. Low values affect in-building coverage.
Demodulation – Frequency Error
Calls will drop when user’s equipment travels at high
speed. In severe cases, handoffs will not be possible at
any speed, creating island cells.
Over-the-Air Measurements – PCINR
A low Physical Carrier to Interference plus Noise Ratio
(PCINR) indicates poor signal quality, low data rate and
reduced sector capacity.
Pass/Fail Test
Set up common test limits, or sets of limits, for each
instrument. Inconsistent settings between base stations
leads to inconsistent network behavior.
RF Measurements
(Option 0066)
Channel Spectrum
Channel Power
Occupied Bandwidth
Power vs. Time
Channel Power
Preamble Power
Downlink Burst Power
Uplink Burst Power
ACPR
Demodulation
(Option 0067)
Constellation
RCE (RMS/Peak)
EVM (RMS/Peak)
Frequency Error
CINR
Base Station ID
Sector ID
Spectral Flatness
Adjacent Subcarrier Flatness
EVM vs. Subcarrier/Symbol
RCE (RMS/Peak)
EVM (RMS/Peak)
Frequency Error
CINR
Base Station ID
Sector ID
DL-MAP (Tree View)
Over-the-Air (OTA)
(Option 0037)
Channel Power Monitor
Preamble Scanner (Six)
Preamble
Relative Power
Cell ID
Sector ID
PCINR
Dominant Preamble
Base Station ID
Mobile WiMAX Signal Analyzers
The Spectrum Master features three Mobile
WiMAX measurement modes:
RF Measurements•
Demodulation•
Over-the Air Measurements (OTA)•
The goal of these measurements is
to increase data rate and capacity by
accurate power settings, ensuring low
out-of-channel emissions, and good signal
quality. These attributes help to create a
low dropped call rate, a low blocked call
rate, and a good customer experience.
Cell site technicians or RF engineers can
make measurements Over-the-Air (OTA)
to spot-check a transmitter’s coverage and
signal quality without taking the cell site
off-line. When the OTA test results are
ambiguous one can directly connect to the
base station to check the signal quality
and transmitter power.
Cell ID, Sector ID, and Preamble
Cell ID, Sector ID, and Preamble show
which cell, sector, and segment are being
measured OTA. The strongest signal is
selected automatically for the additional
PCINR and Base Station ID measurement.
Wrong values for cell, sector and segment
ID lead to dropped handoffs and island cells.
If the cause is excessive coverage, it also
will lead to large areas of low data rates.
Error Vector Magnitude (EVM)
Relative Constellation Error (RCE)
RCE and EVM measure the difference
between the actual and ideal signal. RCE
is measured in dB and EVM in percent.
A known modulation is required to make
these measurements. High RCE and
EVM causes low signal quality, low data
rate, and low sector capacity. This is
the single most important signal quality
measurement.
Preamble Mapping (Mobile WiMAX)
Preamble Scanner can be used with
the GPS to save scan results for later
display on a map. PCINR ratio for the
strongest WiMAX preamble available at
that spot. The Base Station ID and Sector
ID information are also included so that
it’s easier to interpret the results. Once
PCINR data is mapped, it becomes much
easier to understand and troubleshoot any
interference or coverage issues.
- Spectrum Master 1
- KEY FACTS 2
- DESIGNED FOR FIELD USE 2
- INTEGRATED SOLUTION 2
- EASY-TO-USE 2
- Designed for the Field 4
- Best Performance in its Class 6
- Master Transmitter Testing 7
- Valuable Options and Features 13
- (Options 0541, 0542, 0546) 15
- (Options 0520, 0522) 16
- (Options 0530, 0532) 17
- (Options 0040, 0041) 18
- (Options 0042, 0043, 0033) 20
- (Options 0062, 0063, 0034) 21
- (Options 0046, 0047) 22
- (Options 0066, 0067, 0037) 23
- (Options 0060, 0061, 0038) 24
- (Options 0030, 0032) 25
- (for your PC) 26
- Master Software Tools 26
- Script Master™ 26
- Training at Anritsu 32
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Inhaltsverzeichnis
Le spie:
6
“Start” o
16
RRaappiiddoo
18
• Azioni :
20
Importante:
21
Consiglio:
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• LE SPIE
24
INTERVENTI
29
Dati comuni
30
32
B4831-B-3/3
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