Leader LT 4600A, Instruction Manual, Page: 14 / 114

2. SPECIFICATIONS
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2. SPECIFICATIONS
2.1 General
The LT 4600A is a compact, 1U half-rack size SDI video signal generator that supports the
triple-rate SDI (3G/HD/SD) format. In addition to test pattern output including color bars and
SDI check fields, the LT 4600A is equipped with numerous features such as ID characters,
QVGA logo marks, safety area markers, audio embedding, genlock function for external
reference signals, and three analog black signals.
2.2 Features
● Triple-rate SDI Ready
Supports 3G (level A and level B), HD (including dual link), and SD.
The LT 4600A provides two outputs for two signals. The pattern and timing of each signal
can be adjusted separately. (However, only one signal can be used for 3G-B and HD (DL).)
● ID Character Overlay
ID characters can be overlaid at any position on the display. In addition, ID characters can
be scrolled horizontally or displayed in a blinking state for checking whether the display has
frozen.
● Logo Mark Overlay
A logo mark up to 320 (dot) × 240 (line) in size (QVGA size) can be overlaid at any position
on the display. Logo marks are 4-level monochrome data converted from bitmap data.
● Safety Area Markers
90% and 80% safety area markers can be overlaid on the display. For 3G and HD, a 4:3
aspect marker can also be overlaid.
● Pattern Scrolling
Equipped with a function for scrolling patterns in eight directions. The speed can also be
adjusted.
● Audio Embedding
The LT 4600A can embed 32 channels (link A, link B, 4 channels each × 4 groups) of audio
signals for 3G-B and 16 channels (4 channels × 4 groups) of audio signals for 3G-A, HD,
and SD. The frequency, level, and the like can be set for each channel.
● Lip Sync Patterns
The LT 4600A can output lip sync patterns in which the video and audio are synchronized.
By using Leader’s LV 5770(A), you can accurately measure the lip sync of the video and
audio on SDI signals.
● Genlock Function
The LT 4600A can synchronize with NTSC/PAL black burst signals and HD tri-level sync
signals.
NTSC/PAL black burst signal with field reference pulse and NTSC black burst signal with
10 field IDs are also supported.
Furthermore, a Stay-in-Sync function is available in case errors occur at the genlock input.