The document discusses the vectorscope, which is a type of oscilloscope used to measure color information in video images. A vectorscope displays color signals on a circular scale and is used to examine color TV signals and ensure proper chroma and luma levels. It can also be used in audio applications to measure stereo channels. Modern vectorscopes use digital displays rather than CRTs and have additional features like audio monitoring modes. They are tools used in video and audio production and quality control.

1. Presented By:
J K Shree

2. Introduction
 17 October 1989, invented to examine color
TV signals-John L Judge
 A vectorscope-special type of oscilloscope-
similar to oscilloscopes operated in X-Y
mode;
 Used in both audio and video applications,
mainly to measure the color information in a
video image.

3. Construction & Working
 Older vectorscopes-
implemented-CRTs
 Graticule was often
implemented as a silk-
screened-superimposed over
the front surface of the CRT.
 Modern instruments have
graticules drawn using
computer graphics.
 Both graticule and trace are
rendered on an external VGA
monitor or an internal VGA-
compatible LCD display.
 It is the overall distribution
of color in image against a
circular scale.
 In audio applications:
measure the difference
between channels of stereo
audio signals.
 One stereo channel drives
the horizontal deflection of
the display, and the other
drives the vertical
deflection

4. Types - Depending On Color
1. Luma: Black and
White or any 2 colors
2. Chroma: Color

5. Depending On Display Type
1. Polar Sample Vectorscope
2. Polar Level Vectorscope
3. Lissajous Vectorscope

6. Manufacturers
(Cost: Rs. 15000 to 50000)
Sl. No. Manufacturer Model Number Diagram
1 Textronix 1721 (1720 Series)
2 Leader L900A
3 ikan IK450

7. Manufacturers….
Sl. No Manufacturer Model Number Diagram
4 Feelworld FW789
5 Qualis Audio
6 Blackmagic Ultra Scope-Software

8. Specification
(Textronix 1730 series)
CRT Viewing Area 80 x 100 mm
Trace Rotation 8° range, typical
Graticule Internal scale with variable illumination
Power Source
Main Voltage Ranges 115V, 90-132V, 230V, 200-250V
Mains Frequency Range 48Hz to 66Hz
Power Consumption 25 watts (85 BTU/HR) maximum
Environmental
Temperature Nonoperating: -55°C to +75°C
Operating: To 5,500M (15,000 ft)
Altitude Nonoperating: To 18,000 M (50,000 ft)
Operating: To 5,500M (15,000 ft)
Physical Characteristics
Dimensions mm in.
Height 133.4 5.25
Width 215.9 8.5
Length 460.4 8.125
Weight kg lb.
Approximately 3.8 8.5

9. Usage Modes
• External Audio Input
Mode
• Audiobus Filter
Mode

10. Applications
• Identifying issues in the stereo image
• Checking phase and stereo balance issues
• Calibrating preamp, compressor and other external
processors' gains for optimal stereo recording, mixing,
etc.
• Special uses:
Used to check channel identification i.e., phase compatibility
and rotation(inverse) by clicking phase button.
Offset or delay of individual bands-Offset button.
Used to clip any unwanted signals.
• And much more....!!!

11. Images for Applications
Audio Monitoring Live Shooting
Chrominance level Waveform Control
Available Installer

12. Conclusion
• Now a days apps are being developed for
monitoring video and audio.
• Software are available for audio recording and
measuring chrominance level in video.
• This technology is being available in OS (built in).