Starting Fft Power Level Measurement; Storing Fft Power Level Measurement Data - Motorola BSR 2000 Configuration And Management Manual

BSR 2000 Configuration and Management Guide

Starting FFT Power Level Measurement

Use the fft start command to initiate power level measurement using the FFT
algorithm via the RF Sentry.
MOT#fft start <Slot/Port> [sample {<256-2048>}] [mode {Tap-in}] [window
{rectangular | hamming | hanning | blackman | blackman-harris}]
where:
Note: The sample, mode, and
start
configuration specified with the
measurement with a new FFT processor configuration.

Storing FFT Power Level Measurement Data

The fft store command saves the latest FFT power level measurement data for a
CMTS module to a file system. The user specifies a particular port, the file system
(NVRAM or Flash), and a file name without any extension to be used to store the FFT
power level measurement data. An extension of ".fft" will be automatically added to
the file name.
Use the fft store command to save the FFT power level measurement data, as follows:
MOT#fft store <Slot/Port> {nvram: <WORD> | flash: <WORD>}
where:
6-34
Slot is always 0 for the BSR 2000.
Port is a valid upstream port number.
sample 256-2048 is the number of samples of the power level measurement. The
default is 2048,
mode Tap-in is the RF Sentry's operational mode
window is the window coefficient to shape the output of the power level
measurement (rectangular, hamming, hanning, blackman, or
blackman-harris). The default is rectangular.
command but can be used to override the current FFT processor
Slot is always 0 for the BSR 2000.
Port is a valid upstream port number.
nvram: stores the power level measurement data to the NVRAM file system.
window arguments are optional with the
fft setup command and initiate power level
MGBI
Release 1.0
fft
526360-001-00 Rev. B