Issue 26



31 August 2014

Leader Instruments will introduce its LT4600 multi format video generator at IBC in Amsterdam next month. Developed from the established LT4400 HD-SDI and SD-SDI generator, the LT4600 adds compatibility with 3G-SDI and dual link systems. Its two SDI outputs can be used independently, and a lip sync testing function, optional in the earlier model, is now included as standard, allowing measurement of timing offsets caused by latency differences between video and audio processors.

Leader_LT4600 small

The compact 1U half-rack-width LT4600 can generate ID characters for superimposition at any operator-assigned position on the output display. A user-defined logo of up to 320 pixels width by 240 lines depth (QVGA) size can also be positioned anywhere on the screen. This logo is converted from a bitmap to four-levels of monochrome. 90 and 80 per cent safety area markers can also be superimposed on the screen, and a 4:3 aspect ratio marker can be superimposed in 3G-SDI or HD-SDI formats. A motion picture mode is provided to scroll the pattern.

Audio facilities include the ability to generate 32 channels of embedded audio. These consist of link A and link B, each comprising 4 channels by 4 groups for 3G-SDI. 16 channels of embedded audio signals (4 channels by 4 groups) can be superimposed, and frequency and level can be set for each channel.

The LT4600 can be locked to NTSC/PAL black burst or HDTV tri-level sync signal, and a Stay-In function can be used in case of genlock input errors. Three independent analogue black signal outputs are provided.  Black burst can be selected with the same format as the SDI output. HDTV tri-level sync with the same format of clock frequency can be selected for variable timing. A 48kHz wordclock output plus a 48kHz AES/EBU output are provided to synchronise the audio signal.

The LT4600 supports SNMP protocol, allowing easy integration into a networked system, and user data can be saved or updated via a USB interface.

Source: media release

Leader Instruments:


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