Organize and Share your Electronics the way you want. Sign-Up for a free account now. It takes only 30 seconds!

The Vertical Insertion Test Signals in television applying to Amateur Television

The Vertical Insertion Test Signals in television applying to Amateur Television

It can be placed in any place in the path of the video signal. The VITS generator is configurable. Lines can cross the VITS generator without modification, others are erased and recreated in the VITS generator.
The European analogue television transmission standards are based on a 625 lines image which is organized into two half-images (fields). Not all of the lines are visible on the screen, in particular the first lines of each half-image (field). In commercial and professional broadcasting one uses these available lines to transmit test signals, perfectly defined at their emission point. These “known” signals will make it possible to assess the quality of the received signal, to measure impairements, and to locate the source of them. In commercial television, the test lines are transmitted permanently, independently of the transmitted program.

The equipment which generates the test lines is the Vertical Insertion Test Signal (VITS) generator. The shape of the VITS was the subject of thorough studies and is standardized. The VITS makes it possible to measure the quality of the signal by means of a simple suitably synchronized oscilloscope. There exists in the professional field automatic measurement equipment which permanently observes the VITS and display on a screen the value of the measured parameters.

Visit Here for more.

 

More Articles to Read

Debugging ARM Cortex-M0+ HardFaults
Debugging ARM Cortex-M0+ HardFaults
EMP Jammer build
EMP Jammer build
A 3D-printed e-drum pad
A 3D-printed e-drum pad
Interactive geodesic LED dome = extreme geometric fun!
Interactive geodesic LED dome = extreme geometric fun!
Guide to build your 3.3v power supply
Guide to build your 3.3v power supply
SDR radio breathes life into a 75 year old Marconi CR100
SDR radio breathes life into a 75 year old Marconi CR100
A Time for Ranting!
A Time for Ranting!
Emulate a Commodore 64 keyboard with a modern PC and an Arduino
Emulate a Commodore 64 keyboard with a modern PC and an Arduino
USB2005 and USB97C202 Sharing ATA/ATAPI Drive w/ Another Controller
USB2005 and USB97C202 Sharing ATA/ATAPI Drive w/ Another Controller
Robotic Cat Laser
Robotic Cat Laser

Top




Shares