Atec Agilent-N9340B - Manual (Page 6)

06
Handheld Spectrum Analyzer (HSA)
N9340B
Adjacent channel power ratio
(ACPR)
Wireless service providers need to minimize
Spectrum emission mask (SEM)
The new N9340B adds Spectrum Emission
Mask (SEM) as a standard feature. SEM is
a mask for out-of-channel emissions
measurement. The SEM is defined relative
to in-channel power.
The user can set the parameters of the main
channel, out-of-channel frequency bands,
and the limit lines. Included is Pass/Fail testing
for the overall spectrum emission mask and each
individual out-of-channel frequency range. The
N9340B will trigger the failure indicator once
any measurement result violates the mask.
Also displayed are the main channel power
and the power level metrics relative to
in-channel power for each out-of-channel
frequency range. The user can save the
spectrum scan, the mask, the data or
screenshot for later analysis and reporting.
the interference caused by power leaking
into adjacent transmit channels. Adjacent
channel power ratio measurements help
to check for signal leakage and the
identification and control of sources of
interference.
It is quick and easy to set center frequenc
The spectrum emission mask shows the main
channel power and the power level vectors
relative to in-channel power for each out-of-channel
frequency range.
y,
integration bandwidth, and channel bandwidth.
Center frequency, main channel bandwidth, adjacent
channel bandwidth, and channel space can eadily be set.
AM/FM modulation analysis
(Option AMA)
Optional AM/FM modulation analysis shows
the metrics you need, including carrier power,
modulation rate, AM depth/FM deviation,
SINAD and carrier frequency offset. User
definable limits provide Pass/Fail indicators
in 4 cases: higher than carrier power, larger
than AM modulation index or FM deviation,
lower than AM modulation index or FM
deviation, or larger than carrier frequency
offset. The user can save the waveforms with
metrics for reporting as well as the set-up
parameters for future measurements or
analysis.
ASK/FSK modulation analysis
(Option DMA)
Optional ASK/FSK modulation analysis is now
available. Amplitude Shift Keying (ASK) is
used in RFID and optical systems. Frequency
Shift Keying (FSK) is used in many applications
including cordless phone, paging system
and RFID.
N9340B w/option DMA supports 4 display
modes: Symbol, Waveform, ASK/FSK Error,
and Eye Diagram. Included is Pass/Fail testing
of higher than carrier power, higher than ASK
modulation depth/FSK frequency deviation,
lower than ASK modulation depth/FSK
frequency deviation and higher than FSK
frequency deviation. The metrics you need are
shown, including carrier power, ASK/FSK
error, ASK depth/FSK frequency deviation,
and ASK index etc. For reports and future
measurements the waveform with metrics
and setup parameters can be saved.
The detailed metrics offer you the complete
understanding of the AM.
The detailed metrics offer you the complete
understanding of the FM.
The Eye Diagram of ASK also shows the metrics
with detailed parameters.