Filter menu – Tektronix 1760 User Manual

Page 77

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Using the Menus

1760 Series Component Waveform/Vector Monitor User Manual

3-9

Filter Menu

The

FILTER

menu is available for

WAVEFORM

mode only.

Note that the instrument must be in

WAVEFORM

mode to ac-

cess the R--Y displays. When the

FILTER

button is pushed in

WAVEFORM

mode, an on-screen menu allows the following

selections. The bezel buttons are self-cancelling.

H

FLAT —

provides flat (normal) response.

H

LUM —

provides a low-pass response to display the

luminance portion of the composite video signal.

H

CHROM —

provides bandpass response centered on

the chrominance subcarrier frequency, and displays
frequencies around the subcarrier frequency.

H

DIFF —

is a differentiated step filter (linearity steps

are translated into impulses for amplitude compari-
son).

H

R--Y —

selects demodulated chrominance-versus-

time display. The chrominance is demodulated on
the

R--Y (V)

axis when burst is lined up on the

normal axis. The

VECTOR PHASE

control can adjust

the demodulator phase to any axis.

H

SCH R--Y (Option SC Only) —

demodulates the SCH

sync-locked oscillator. This display is useful for
viewing SCH variations versus time.

H

F + L —

displays the video signal both flat and

luminance filtered. The display is in parade or
overlay mode, as selected through the on-screen
menu. When

PARADE

is selected, the flat display is

on the left.

H

F + L + C —

displays the video signal flat, lumi-

nance filtered, and chrominance filtered. The signal
is displayed in parade or overlay mode, as selected
through the on-screen menu. When

PARADE

is

selected, the flat display is on the left, with the
chrominance-filtered display on the right.

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