Gefen HDMI 1.3 to 3G-SDI Scaler



Recommended replacement: Gefen GEF-HDVI-2-3GSDIS
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The Gefen EXT-HDMI1.3-2-3GSDIS HDMI 1.3 to 3G-SDI Scaler outputs an HDMI signal as SDI/HD-SDI or 3G-SDI with resolutions supported up to 1080p/60 Hz and 2K (2048x1080/60) on two SDI output connectors along with dual link HD-SDI. HDMI embedded audio is supported at up to 7.1 channels.

An advanced chipset enables features such as: Genlock, Color & Gamma Correction, Noise Reduction, Detail Enhancement, Aspect Ratio Selection, Pattern Generator Mode, & Multiple Languages through on-screen display (OSD) Menu Support. The genlock reference input provides the capability of synching the unit with the customer's house signal.

How It Works
Connect an HDMI source to the input and a 3G-SDI display to the output. Power up the device and video signals are automatically converted to the proper format, enabling the conversion and scaling to take place.

The Gefen EXT-HDMI1.3-2-3GSDIS Features:

  • 10-bit color depth for greater precision and dynamic range
  • Proprietary 10-bit motion adaptive video de-interlacing with edge interpolation
  • Output is mirrored onto two identical SDI outputs (BNC female)
  • Max. active image size of 2048 samples x 2048 lines PBP processing
  • Friendly OSD (On-Screen Menu Display) guides the user through operations
  • Pattern mode w/color bars & coarse hatch patterns at 720p/60
  • RS-232 serial port for field-upgradeable firmware
  • IR remote control included
  • Latency: 1 frame (when in Genlock mode)
  • Advanced noise reduction and detail enhancement
  • French/English menu set
  • 2D scaling engine

Gefen EXT-HDMI1.3-2-3GSDIS Back View


The Gefen EXT-HDMI1.3-2-3GSDIS Specifications:

Height 1.7 in. (4.32 cm.)
Width 8.2 in. (20.83 cm.)
Depth 7.5 in. (19.05 cm.)
Weight 4 lbs. (1.82 cm.)
Rack Space 1U (half-width)
Video Resolution  
Input Video Bandwidth 225 MHz
Output Video Bandwidth up to 3.0 Gbps
Maximum Output Resolutions : 1080p/60Hz and 2K (2048x1080p/60)
Power Consumption 20 Watts (max) per power supply
Power Supply 5V DC
Supported Hardware  
3G-SDI Output Connectors (2) BNC female (Mirrored outputs)
HDMI Input Connector (1) Type A 19 pin female, "Reference Input"
Approved Agency SDI Compliant (SMPTE 259M, up to 360 Mb/s)
HD-SDI Compliant (SMPTE 292M, up to 1.485 Gbps)
3G-SDI Compliant (SMPTE 424M/425M, up to 3.0 Gbps)
HDMI 1.3 compliant

Note: HDMI 1.3 Features Supported:

  • 225 MHz Video Bandwidth
  • 10-bit Deep Color
  • xyYCC
  • Up to 8 channels embedded audio within the HDMI A/V output stream

The Gefen EXT-HDMI1.3-2-3GSDIS Package Includes:

  • (1) HDMI to 3GSDI Scaler
  • (1) HDMI Locking Cable 6ft (M-M)
  • (1) 5V Power Supply with Locking Connector
  • (1) IR Remote Control
  • (1) Set of Rack Ears
  • (1) DB9 Serial Cable (M-F)
  • (1) Users Manual


Question: Will this unit output 1080i? The description says it can output "up to" 1080p but Ican't use that in my plant. If it does 1080i it will work.
Answer: Thank you for your inquiry. Unfortunately, this particular product has been discontinued. We have gone ahead and marked it as such.

The replacement GEF-HDVI-2-3GSDIS (a href=''>, however, does support 1080i. You can see a full table of supported video formats listed in the back of the manual linked form that product's page.