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Page I-13
180 DSP Operation Manual
Signal Level Meter
Bluetooth Communications Adapter
This is a software and hardware option package that is used to connect the 180 DSP
to an iPad via Bluetooth for remote control of the meter during operation. This package
includes a software activation key for the BCA option on the 180 DSP and a Class II
Mini Bluetooth Adapter (v2.1) with a 10 meter range for speeds up to 3 Mbps. This
option is compatible with the iPad and iPhones that have device tethering enabled by
the service provider.
Frequency Domain Reectometer
This feature enables the 180 DSP to provide a simple, convenient and accurate tool
for determining the distance to cable faults by sending a sweep into the cable and
analyzing the complex reected wave to determine the distance to various sources
of reection (opens, shorts, splitters, etc.). The reecting events are indicated on a
distance versus amplitude display, and markers are used to identify the distance to the
source of the reection, and the return loss at that point.
QAM Error Vector Spectrum Analysis
This feature enables the 180 DSP to provide users not only the ability to tune the meter
to a downstream QAM channel and display its Error Vector Spectrum (EVS), to reveal
noise and ingress that may be present under the QAM channel but also provides a
method for troubleshooting upstream ingress and noise problems within active channel
bands by seeing the ingress that is present “underneath” an upstream cable modem
channel, or any bursty signal.
Source Generator
This feature enables the 180 DSP to generate either a continuous wave (CW),
16/32/64/128/256 QAM signal with adjustable frequency, or OFDM channels, and
modulation in the return path from 5 to 85 MHz.
Trafc Control Plus
This feature enables the 180 DSP to provide users with the ability to troubleshoot
the upstream in a bonded channel environment. This feature can be used to see
impairments with ease and sort trafc from ingress within a bursty upstream.