Broadcast Products
Test Signal Generator
LT 4400
MULTIFORMAT VIDEO GENERATOR
GENERAL
The compact, 1U half-rack sized, LT 4400 Multiformat Video Generator is applicable to both HD-SDI and SD-SDI systems.
The various output capabilities are provided: color bar, SDI check field test pattern, ID characters, logomark in QVGA size, safety-area marker, superimposing embedded audio, genlock mode to synchronize external reference signal, and three independent analog black signal systems.
The various output capabilities are provided: color bar, SDI check field test pattern, ID characters, logomark in QVGA size, safety-area marker, superimposing embedded audio, genlock mode to synchronize external reference signal, and three independent analog black signal systems.
FEATURES
- Applicable to both HD-SDI and SD-SDI systems
Applicable to both HDTV (18 types of HDTV formats) and SDTV (525i/59.94, 625i/50) systems. The HDTV or SDTV can be selected. - Superimposing ID characters
The ID characters can be superimposed at the arbitrary position on the screen. The character blinks to indicate the freeze status. - Superimposing logomark
A logomark up to 320 (pixel) x 240 (line) in QVGA size can be superimposed at an arbitrary position on the screen. The logomark is converted from the bit map to four-grade monochrome data. - Safety-area marker
The 90 % and 80 % safety-area markers can be superimposed on the screen. The 4:3 aspect-ratio marker can also be superimposed in HDTV format. - Superimposing embedded audio
The 16 channels of embedded audio signals (4 channels x 4 groups) can be superimposed. The frequency and level can be respectively set for each channel. - Genlock mode
This instrument can be locked by a NTSC/PAL black burst or HDTV tri-level sync signal for variable the timing. The NTSC/PAL black burst signals with field reference pulse signal, and NTSC/PAL black burst signal with 10-field ID are also applicable. - Stay-in sync function
This function ensures the stable operation in genlock mode even when the external reference signal is accidentally intermitent. - Analog black signal output
Three independent analog black signal output systems are provided. The black burst signal with the same format as the SDI output, or HDTV tri-level sync signal with the same format of clock frequency can be selected for variable timing.
The NTSC/PAL black burst signals with field reference pulse signal, and NTSC black burst signal with 10-field ID are also applicable. - Pattern scroll (Simple motion picture mode)
The simple motion picture mode is provided to scroll the pattern. - Word clock output
The 48 kHz word clock output is provided to synchronize the audio signal. - Applicable to SNMP
The network system can easily be constructed since this instrument supports SNMP. (Not available currently) - OPTION
OP 70: FULL SIZE LOGO Option (factory option)
Applicable to the LOGO MARK of a full screen.
The Logo Mark of ull screen size (up to 1920 x 1080 pixel) can be displayed.


