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Tektronix 1720 Vectorscope

Manufacturer part number: 1720
NTSC
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VECTORSCOPES (NTSC)
30009151
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The Tektronix 1730 Series Waveform Monitors and 1720 Series Vectorscopes provide comprehensive television signal monitoring for both NTSC and PAL applications. These versatile instruments are lightweight, half-rack width, and have bright CRTs for video signal monitoring. Both instruments exceed normal monitoring capabilities, and their unique features make them even more powerful when operated in tandem. Each monitor has its own advanced feature set and the proven 1700 Series family performance to provide more monitor for the money. These monitors do the job faster, better, and easier at an economical price.

The 1720 Series and 1730 Series families cover a wide variety of video testing needs. For typical composite monitoring in the NTSC and PAL realm, the 1720 Series and 1730 Series more than handle the job. If there is a need for Dual Standard testing (PAL and NTSC), the 1735 Waveform Monitor and 1725 Vectorscope can be used. Digital testing of both composite parallel and composite serial can be accomplished with the 1730D Series of Digital Waveform Monitors. Whatever the individual video testing application, the 1720 and 1730 Series family provide an easy to use, economical solution.

  • Signal Input (Video and External Reference)
    • Return Loss - >40 dB, 50 kHz to 6 MHz, power on or off.
    • Maximum Input - ±5 V DC + peak AC.
    • Loop-through Isolation - >70 dB at FSC.
    • Channel Isolation - >70 dB at FSC.
    • Impedance - >15 kΩ.
  • Chrominance Bandwidth
    • Upper - -3 dB point, FSC +500 kHz, ±100 kHz.
    • Lower - -3 dB point, FSC -500 kHz, ±100 kHz.
    • Vector Phase Accuracy - Within 1.25°.
    • Vector Gain Accuracy - Within 2.5%, typical.
    • Quadrature Phasing - Within 0.5°, typical.
  • Subcarrier Regenerator
    • Pull-in Range - FSC ±50 Hz.
    • Pull-in Time - Within 1 second.
    • Phase Shift with Subcarrier Frequency Change - 2° ±50 Hz.
    • Phase Shift with Burst Amplitude Change - <2° with ±6 dB change from nominal.
    • Phase Shift with Input Channel Change - <0.5°.
    • Phase Change with Variable Gain Control - ±1°.
    • Phase Control Range - 360° Continuous rotation.
    • Burst Jitter - <0.5°.
    • Display Differential Phase and Gain - ±1° and ±1%.
    • Center Dot Clamp Stability - <0.4 mm spot movement.
  • Synchronization
    • Internal - Composite video with sync ±6 dB of nominal.
    • External Reference - Composite video or CW subcarrier.
Description

The Tektronix 1730 Series Waveform Monitors and 1720 Series Vectorscopes provide comprehensive television signal monitoring for both NTSC and PAL applications. These versatile instruments are lightweight, half-rack width, and have bright CRTs for video signal monitoring. Both instruments exceed normal monitoring capabilities, and their unique features make them even more powerful when operated in tandem. Each monitor has its own advanced feature set and the proven 1700 Series family performance to provide more monitor for the money. These monitors do the job faster, better, and easier at an economical price.

The 1720 Series and 1730 Series families cover a wide variety of video testing needs. For typical composite monitoring in the NTSC and PAL realm, the 1720 Series and 1730 Series more than handle the job. If there is a need for Dual Standard testing (PAL and NTSC), the 1735 Waveform Monitor and 1725 Vectorscope can be used. Digital testing of both composite parallel and composite serial can be accomplished with the 1730D Series of Digital Waveform Monitors. Whatever the individual video testing application, the 1720 and 1730 Series family provide an easy to use, economical solution.

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