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VLK4/FTB - quad linear key inserter
with fade to black (PAL/NTSC)
desk or rack remote control

 

VLK4/FTB - video quad linear key inserter
VLK4 with rack remote control

FEATURES

 

VLK4 is a NTSC/PAL single RU/19" device which enables insertion of 4 separate linear keys.
All VLK4's functions are operable by a remote control.
VLK4 is the solution to all  problems caused by the insertion of titles on video images.
As you know, a "hard key" titling often determines a confusion between the signals and causes the well known "sparkling edges" effect.
Our equipment, on the other hand, thanks to its linear key transparent titling, provides the best sharpness of the video edges and an extreme transparency of the incoming video signal.
This enables a multi-layer titling (BACKGROUND, MID-BACK, MID-FORE and FOREGROUND etc.).
The linearity of the titling, is made possible by a signal of control KEY which determines the mixing level of main picture (BACKGROUND) and titling signal (FOREGROUND).
 

For instance

 

VLK4/FTB - video quad linear key inserter
Desk remote control

VIDEO MIXERS

Many video mixers do not allow the linear insertion because their performances are limited to the "hard Key" type.
The VLK4 can be added up to your mixer to update the keyer system.
Furthermore, VLK4 has KEY and FILL outputs which, if connected to the video mixer's KEY input, provide to the latter all the engaged keys just by using the KEY control on the mixer.

 

 

VLK4/FTB - video quad linear key inserter
Rack remote control (1/2 1RU)
 

APPLICATIONS

Thanks to its features, VLK4 can be employed for various applicatons.
The sector of graphical images is surely the one where you can get better results by using a linear key transparent insertion.
For example it provides fade or curtain effects between BACKGROUND and FOREGROUND or the insertion of an animation on live images.
For further information, for full specifications, do not hesitate to contact us.

 

VLK4/FTB - video quad linear key inserter
VLK4/FTB - back panel


 

VLK4 SPECIFICATIONS

 

Input-Output Characteristics

PGM Inputs Pgm1 primary looping inputs (is also genlock reference)
Pgm2

Key Inputs 4 effects key looping inputs
4 effects fill looping inputs

Video Outputs 1 Preview
2 Program
1 Key
1 Fill
Data 9 pin connector RS 422 for the remote control

Video System characteristics (on program output)

Differential Phase <

Differential Gain  < 0,5%

PGM Bandwidth ±  0.1 dB DC to 8 MHz
Path Length Deviation  ±
Absolute Delay   45 ns
Crosstalk   > 54 dB at 4,43 MHz
2 T k_factor  < 0,3%
Lum. non-linearity < 2%
YC Delay   < 6 ns
SNR (WGT) > 65 dB

Mechanical and power characteristics

VLK4 Panel  1 Ru, depth 31 cm (with connector)
Weight: 3,5 Kg.

Remote control desk Dimensions: 19 x 14 x 5 cm
Weight: 0,5 Kg.

Remote control rack Weight: 0,5  Kg.
Input power <110 or 220 Vac  50-60 Hz
Power consumption 20 VA

 

 

In accordance with constant improvement policy of products, El.Man (Elettronica Mangione) reserves the right to modify without notice and at any time, features and prices of its own apparatus.