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Broadcast Engineers' Vectorscope Guide

The 1720 Vectorscope document discusses: 1. The 1720 Vectorscope can display vector and stereo audio in dual display mode and has graticules for measuring differential phase and gain. 2. It has balanced inputs for X Y mode to evaluate stereo audio phase through a separate input connector. 3. The device can display RGB or YRGB signals and has center dot clamping in vector mode and dimming when no signal is present. 4. It utilizes post-accelerated CRTs with internal graticules for parallax-free displays.

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57 views3 pages

Broadcast Engineers' Vectorscope Guide

The 1720 Vectorscope document discusses: 1. The 1720 Vectorscope can display vector and stereo audio in dual display mode and has graticules for measuring differential phase and gain. 2. It has balanced inputs for X Y mode to evaluate stereo audio phase through a separate input connector. 3. The device can display RGB or YRGB signals and has center dot clamping in vector mode and dimming when no signal is present. 4. It utilizes post-accelerated CRTs with internal graticules for parallax-free displays.

Uploaded by

Flavio Falcão
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
You are on page 1/ 3

1720 Vectorscope

Analog Waveform
Monitors
1720 Series *

1720 Vectorscope - Vector and


Stereo Audio Dual display
mode.

1720 NTSC Vector


display.

Differential Phase and Gain Measurements

The 1720 Series Vectorscope graticule has scales for


measuring Differential Phase and Gain. The Differential
Phase scale has markings at 2° intervals. The Differential
Gain scale has markings at 5% intervals. For even greater
precision, the 1720 and 1730 Series can be coupled for
differential phase measurements using the field or line
sweep on the 1730 Series Waveform Monitor. The
Waveform Monitor Chroma filter can be used for
differential gain measurements.

Stereo Audio Phase Measurements

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1720 Vectorscope

Balanced inputs for the X Y mode are available on the


1720 Series Vectorscope through a separate input
connector. This mode is particularly useful for evaluation
of stereo audio with a special X Y graticule scale for both
amplitude and phase measurements. X Y measurements
can be displayed individually or in combination with a
vector display. This input can also be used for other
applications where X Y monitoring is useful.

RGB-YRGB

The Waveform Monitor can display RGB or YRGB.


The RGB/YRGB staircase input is through a rear panel
connector.

Vector Center Dot Clamping

The 1720 Series Vectorscopes employ center dot


clamping in Vector mode for easy detection of residual
sub-carrier on the signal. In addition, with no signal
present, the center dot automatically dims prolonging the
CRT life.

Parallax-free Internal Graticules

Both instruments utilize post-accelerated, mesh-type


CRTs equipped with internal graticules to provide
parallax-free displays. Variable, evenly-illuminated
scales, along with molded bezels, make waveform
photography a snap.

Remote Control

Internal front panel presets, RGB/YRGB enable, along


with front panel recall/setup can be accessed through the
waveform monitor remote connector.

Available in NTSC, PAL and Dual Standard

Both the 1730 Series and the 1720 Series are available in
either NTSC or PAL versions. The 1721 Vectorscope
and the 1731 Waveform Monitor are the PAL versions.
The 1735 Waveform Monitor and 1725 Vectorscope
provide PAL/NTSC Dual Standard Monitoring. PAL-M
and PAL-N instruments are available as a modified
product.

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1720 Vectorscope

Tektronix Measurement products are


manufactured in ISO registered
facilities.

49A-10733-4p595, 04/1996, 10/01/2001

Page 3

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