Datasheet
APCO 25 – SignalVu-PC application SV26 enables quick, standards-
based transmitter health checks on APCO P25 signals. The following
image shows a Phase II HCPM signal being monitored for anomalies with
the spectrogram while performing transmitter power, modulation and
frequency measurements to the TIA-102 standards specification.
Mapping – The SignalVu-PC MAP application enables interference
hunting and location analysis. Locate interference with an azimuth function
that lets you draw a line or an arrow on a mapped measurement to indicate
direction, or use the available Alaris smart antenna with automated azimuth
placement.
LTE – Application SV28 enables the following LTE base station transmitter
measurements:
Cell ID
Signal survey/classification – Application SV54 enables expert systems
guidance to aid the user in classifying signals. You can quickly create a
spectral region of interest, enabling users to identify and sort signals
efficiently. The spectral profile mask, when overlaid on top of a trace,
provides signal shape guidance while frequency, bandwidth, and channel
number are displayed allowing for fast classification. WLAN, GSM, W-
CDMA, CDMA, Bluetooth standard and enhanced data rate, LTE FDD and
TDD, ATSC and other signals can be quickly and simply identified.
Databases can be imported from your H500/RSA2500 signal database
library for easy transition to the new software base.
Channel power
Occupied bandwidth
Adjacent channel leakage ratio (ACLR)
Spectrum emission mask (SEM)
Transmitter off power for TDD
Reference Signal (RS) Power
The measurements follow the definition in 3GPP TS Version 12.5 and
support all base station categories, including picocells and femtocells.
Pass/Fail information is reported and all channel bandwidths are supported.
A typical signal survey is show below. The survey is of a portion of the TV
broadcast band, and 7 regions have been declared as either Permitted,
Unknown, or Unauthorized, as indicated by the color bars for each region.
In the detail illustration, a single region has been selected, and since we’ve
declared this to be an ATSC video signal, the spectrum mask for the ATSC
signal is shown overlaid in the region. The signal is a close match to the
spectrum mask, including the vestigial carrier at the lower side of the signal,
characteristic of ATSC broadcasts.
The Cell ID preset displays the Primary Synchronization Signal (PSS) and
the Secondary Synchronization Signal (SSS) in a Constellation diagram. It
also provides Frequency Error.
The illustration below shows spectral monitoring with the spectrogram
display combined with a Cell ID/Constellation, Spectrum Emission Mask
and ACLR measurements.
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