12G-SDI

Maximum SDI Rate

4K60

Maximum Video Format

20,007

Format Conversions

294

VESA Input Formats

36 mo

Manufacturer Warranty

The Decimator 12G-CROSS is a 4K HDMI and 12G-SDI cross converter built for the signal-format problems that appear in real production rooms. Decimator Design combines bidirectional conversion, motion-adaptive scaling, frame-rate conversion, genlock, test generation, and SDI distribution in one fanless box. It fits live events, broadcast workflow troubleshooting, fixed AV installation, and mobile production without requiring a computer for routine setup. One compact converter can replace several single-purpose boxes in the signal chain.

Decimator 12G-CROSS 4K HDMI 12G-SDI cross converter for live production and broadcast

Key Features

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4K HDMI to 12G-SDI Cross Conversion

4K HDMI to 12G-SDI cross conversion lets an HDMI source feed SDI infrastructure while the same unit can convert SDI back to HDMI. HDMI and SDI outputs can be sourced from either input or from the internal scaler. That routing flexibility is useful when a switcher, confidence monitor, recorder, and camera chain do not share the same connection standard.

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4K Scaler and Frame Rate Converter

The 4K scaler and frame rate converter works across 351 input formats and 57 scaler output formats, producing 20,007 possible format conversions. It accepts 294 VESA formats through HDMI in addition to broadcast SD, HD, 2K, and 4K signals. Current Decimator firmware uses a motion-adaptive scaling engine with high internal processing precision for demanding conversion paths.

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Genlock-Synchronized Video Scaling

Genlock-synchronized video scaling lets the conversion engine reference the SDI input, HDMI input, or external genlock source. The scaler also supports horizontal and vertical image flipping. For live production and sports broadcasting, this gives engineers a compact way to normalize timing and format before a signal reaches the switcher or router.

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1x4 12G-SDI Distribution Amplifier

The 1x4 12G-SDI distribution amplifier function sends a single SDI source to four SDI outputs while keeping conversion available in the same chassis. Two SDI connections can operate as active loop-throughs or additional outputs. This can reduce the number of separate throwdown converters and distribution boxes needed on a live event cart or in a fixed install rack.

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12G-SDI Test Pattern Generator

The 12G-SDI test pattern generator provides 58 test patterns across professional 12G, 6G, 3G, HD, and SD workflows, with audio test-tone generation available in current firmware. Luma and chroma zone plates help with commissioning and troubleshooting. The onboard LCD and buttons provide direct access without carrying a laptop to the signal path.

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HDMI and SDI Audio Pair Routing

HDMI and SDI audio pair routing allows embedded audio pairs to be rearranged for the required output path. That is useful when sources and destinations expect different embedded channel assignments. USB control and firmware updating are also available when deeper configuration is needed away from the front-panel menu.

Who It's For

Broadcast Engineers

Normalize HDMI and SDI formats, frame rates, and reference timing before signals enter a broadcast workflow.

Live Event Production

Carry one fanless converter for displays, switchers, recorders, confidence feeds, and last-minute signal-format changes.

House of Worship

Bridge long-run SDI camera feeds to HDMI displays or convert presentation sources into the production system.

Sports Broadcasting

Use genlock, scaling, frame-rate conversion, and multiple SDI outputs for field, venue, and control-room signal paths.

Education AV

Match computers, lecture-capture systems, projectors, and SDI production equipment across varied resolutions and frame rates.

Corporate AV

Standardize mixed HDMI and SDI sources for conference rooms, hybrid events, overflow displays, and production control.

Decimator Design Support

The Decimator 12G-CROSS carries a 36-month manufacturer warranty against defects in materials and workmanship from the date of purchase. Coremicro can also help confirm format, genlock, SDI, HDMI, and power requirements before deployment.

Technical Specifications

Specification	Detail
Product Type	HDMI / SDI 4K cross converter with scaling and frame rate conversion
HDMI Input	1 x HDMI Type A
SDI Input	1 x 12G/6G/3G/HD/SD-SDI
Reference Input	1 x Genlock
HDMI Output	1 x HDMI Type A
SDI Outputs	4 x 12G/6G/3G/HD/SD-SDI; two can operate as active loop-throughs or additional outputs
12G / 6G Standards	SMPTE 2048-1 / 2036-1
Maximum 12G-SDI Format	3840 x 2160p or 4096 x 2160p at 50, 59.94, or 60 Hz
6G-SDI Formats	3840 x 2160p or 4096 x 2160p at 23.98, 24, 25, 29.97, or 30 Hz
3G-SDI Formats	1920 x 1080p or 2048 x 1080p at 50, 59.94, or 60 Hz; Level A and Level B supported
HD-SDI Standards	SMPTE 292M, 274M, and 296M
SD-SDI Standard	SMPTE 259M at 270 Mb/s
HDMI Video Formats	4096 x 2160p and 3840 x 2160p up to 60 Hz; 1080p, 1080i, 720p, NTSC, PAL, and supported VESA formats
VESA HDMI Input	294 formats
Scaler Format Range	351 input formats to 57 output formats; 20,007 possible format conversions
Scaling Functions	Motion-adaptive scaling, frame-rate conversion, horizontal flip, vertical flip
Scaler Reference	SDI input, HDMI input, or Genlock input
Test Pattern Generator	Professional 12G/6G/3G/HD/SD generator with 58 test patterns
Audio	Embedded HDMI and SDI audio pair rearrangement; audio test-tone generation
Control	Onboard LCD and button control; USB control and firmware updates
Power	+5V to +32V DC, positive centre pin, metal thread locking DC socket
Cooling	Fanless
Enclosure	Aluminium case
Dimensions	106 x 130 x 31 mm
Included	Power supply, HDMI cable, and USB cable
Warranty	36 months from date of purchase against defects in materials and workmanship

Ready to Put the Decimator 12G-CROSS Into Your Signal Chain?

Coremicro is an authorized Decimator Design dealer for professional video converters used in broadcast, live events, venue production, and education AV. Contact our team for current price, in-stock status, and compatibility with your SDI, HDMI, genlock, or display workflow.

Talk to a Specialist

Decimator 12G-CROSS 4K HDMI/SDI Converter with Scaling and Frame Rate Conversion