We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is a Waveform Monitor?

By Emma G.
Updated May 16, 2024
Our promise to you
EasyTechJunkie is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At EasyTechJunkie, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

A waveform monitor is a device that monitors television signals over time. It is used in all aspects of film and television, from production to troubleshooting to research and development. Waveform monitors have evolved to keep up with changes in television and camera technology.

A television receives video signals as a series of lines. The order of these lines and the way in which they are scanned is called a raster pattern. Each line is made up of tiny points of color, called pixels. In order for a television signal to come in clearly, the raster pattern used by the television must match that used by the transmitter.

Almost every aspect of a video signal can be measured and recorded using a waveform monitor. It can keep track of the vertical blinking interval (VBLANK). The VBLANK is the time difference between the last line of one raster image and the first line of the next one. If the VBLANK is too great, television viewers may notice their screen flickering.

The waveform monitor can also measure the overall brightness of the picture. This allows the transmission to stay uniform over time. Another uniformity issue that can be waveform monitored is color burst. This is the signal that keeps colors unchanged from frame to frame. The instrument can even be set to measure only specific raster lines.

Modern waveform monitors are made up of two different measuring devices, an oscilloscope and a vectorscope. The oscilloscope monitors the voltage of a signal as it varies over time. Then it plots the output on a two-dimensional graph, usually displayed on a separate screen.

When the device was first invented, a waveform monitor was just an oscilloscope used to monitor video signal. Modern waveform monitors have a built-in vectorscope as well. A vectorscope plots the relation between two signals over time. The addition of the vectorscope allows the waveform monitor to take more sophisticated readings.

Readings from waveform monitors have many applications for the film and television industries. On the set of a film or television show, they are used to make sure that all the cameras are calibrated the same. They make sure that the raster pattern stays the same as the video is transferred from the camera to other devices. Readings can also help editors correct color and brightness issues.

Readings from a waveform monitor are used by technicians to diagnose problems. They are checked by installers to make sure all equipment can maintain a uniform signal. They are even used in research and development to create more reliable television and camera equipment.

EasyTechJunkie is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.

EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.