📺 Tektronix 1721 Professional Vectorscope PAL Broadcast Tested 📺

📺 Professional Chrominance Analysis

The vectorscope displays the phase and amplitude of chrominance signals, allowing instant verification of color quality and consistency in PAL video productions. Ideal for adjusting cameras, color encoders, and distribution equipment.

🎯 Differential Gain and Phase Measurements

Perform precise differential gain and differential phase measurements, essential for evaluating the performance of video transmission systems and detecting nonlinear distortions affecting color quality.

✅ +V Display for PAL System

The +V function allows verification of the proper operation of PAL color encoders by inverting the V axis at a half-line frequency, producing a unique vector display that simplifies the analysis of complex PAL signals.

🎚️ XY Mode for Stereo Audio Monitoring

The XY mode with dedicated graticule transforms the vectorscope into a stereo audio monitor, allowing visualization of the phase relationship between the left and right channels, a feature appreciated in multimedia production environments.

🔄 High-Impedance Loop-Through Inputs

The high-impedance loop-through inputs (Channel A, Channel B, External Reference) preserve signal integrity by offering more than 70 dB isolation between connections, allowing seamless insertion into the production chain.

✅ Warranty and Quality: This used device has been carefully tested by our technicians and works perfectly. It is covered by our 30-day warranty for your peace of mind.

📦 Secure Shipping: Professional reinforced packaging and fast shipping with carrier tracking number to follow your package in real time.

🧾 Professional Invoice: Paper invoice with 0% VAT included with each package, fully compliant for your accounting and tax needs.

⚠️ Software Support: We do not provide technical support regarding the use or configuration of the device. The equipment is sold as-is concerning software and settings.

📸 Illustrative Photos: Photos are provided for illustration only. Only the content of this listing is authoritative for the exact product reference and included accessories (power cable).

🔍 What is the difference between the Tektronix 1720 and the 1721?

The Tektronix 1720 is designed for the NTSC video standard (System M, mainly used in North America), while the 1721 is specifically optimized for the PAL standard (System I, B, etc.) used in Europe, Asia, Africa, and Oceania. The 1721 also includes the +V display function specific to PAL systems to check PAL color encoders.

📺 Can I use this vectorscope with modern video equipment?

Yes, the Tektronix 1721 works with any equipment producing a standard PAL composite video signal. It is compatible with PAL video cameras, VCRs, video mixers, effects processors, and all broadcast equipment using composite video outputs. The loop-through inputs allow easy integration into your production chain without interrupting the signal.

🎚️ How to use the XY function for stereo audio monitoring?

The XY mode turns the vectorscope into a professional stereo phase monitor. Connect your stereo audio signals to the appropriate inputs (via the REMOTE connector on the rear panel for balanced line input), and the vectorscope will display the phase correlation between the left and right channels. A vertical line indicates perfect mono, a circle indicates wide stereo, and a horizontal line signals potential phase issues.

⚡ What is the power consumption of this device?

The Tektronix 1721 consumes about 35 watts maximum, making it an energy-efficient device. It accepts a wide range of power voltages (90-250V AC) and frequencies (48-66 Hz), allowing international use without a transformer. The appropriate power cable is included with the device.

🔧 Can the Tektronix 1721 be mounted in a 19-inch rack?

Yes, the Tektronix 1721 can be installed in a 19-inch rack with the appropriate mounting option (Tektronix reference 1700 F 05). This option also allows coupling the vectorscope side-by-side with a Tektronix 1731 waveform monitor in the same rack, creating a complete professional video monitoring solution for control rooms and production studios.

📊 What measurements can I perform with this vectorscope?

The Tektronix 1721 allows you to perform many essential measurements: color bar verification (correct amplitude and phase), differential gain and differential phase measurements, white balance control, color saturation verification, reference burst analysis, and SCH phase control (subcarrier to horizontal). The full 360° phase adjustment and built-in test circle make system calibration easy.

🛡️ What warranty is included with this used device?

We offer a 30-day warranty on this tested and verified used equipment. This warranty covers hardware operational defects. The device has been carefully inspected by our technicians before sale. In case of any issues during the warranty period, we provide replacement or repair. We are a professional company and every sale comes with an invoice including 0% VAT.