VITS100 NTSC VITS Inserter Instruction Manual 1–1
Getting Started
The Tektronix VITS100 NTSC VITS Inserter is a high quality signal generator
designed to insert VITS (Vertical Interval Test Signals) into program video. It
automatically switches to bypass mode in the event of power failure or loss of
lock to the program video.
See VITS Inserter Functions, below, for a brief explanation of what the VITS
inserter can do. See Functional Check and Installation, on page 1–3, to begin
using your new VITS inserter.

VITS Inserter Functions

You can program the VITS inserter to generate test signals and a source
identification signal and insert the signal(s) into selected lines of the vertical
interval. You can also use the VITS inserter to overwrite VITS that already exist
in program video; overwriting with a Black signal effectively deletes existing
material.
The VITS inserter uses 12-bit data at an 8FSC data rate to ensure accurate test
signal generation. The standard VITS inserter can generate and insert the
following VITS into your choice of lines 17, 18, 19, and 20 in the even or odd
fields of NTSC video:
HNTC7 Combination
HNTC7 Composite
HFCC Multiburst
H50% Gray
HSIN X/X
HFCC Color Bars
HFCC Composite
HMultipulse
HVertical Interval Reference Signal (VIRS)
HRed Field
H0% Black
H7.5% Black

Test Signals