Motorola BSR 2000 manual Fft start

Release 1.0 CMTS Commands

fft start

The fft start command initiates the power level measurement using the FFT algorithm via the RF Sentry.

Note: The sample, mode, and window arguments are optional with the fft start command but can be used to override the current FFT processor configuration specified with the fft setup command and initiate power level measurement with a new FFT processor configuration.

Group Access

MSO

Command Mode

Privileged EXEC

Command Line Usage

fft start <Slot/Port> [sample {<256-2048>}] [mode {Tap-in}] [window {rectangular hamming hanning blackman blackman-harris}]

Command Syntax

Slot/Port	Slot is always 0 for the BSR 2000. Port is a
	valid upstream port number.
sample 256-2048	number of samples of the power level
	measurement
mode Tap-in	RF Sentry operational mode
window	window coefficient to shape the output of the
	power level measurement (rectangular,
	hamming, hanning, blackman, or
	blackman-harris)

526363-001-00 Rev. B MGBI 11-133