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Product Features

  • 23 different HD video formats
  • 30 different test patterns
  • HD analog and SDI outputs
  • YUV or RGB analog outputs
  • SD Black Burst Output
  • Tri-Level Sync Output
  • Embedded time code
  • Two AES Generated Outputs
  • AES, Either AES-3 or AES-11 (DARS)
  • Master HD & SD Sync Generator
  • 8 selectable channels to be embedded
  • Power-up user settings
  • Loadable factory defaults
  • Embedded caption test message
  • Adjustable audio frequency and amplitude
  • Adjustable horizontal & vertical timing
  • PsF (Progressive Segmented Frame)
  • Source ID
  • Selectable AFD insertion
  • Video payload identifier insertion

High Definition Test Generator, with Gen-Lock, 1080 & 720 formats

Model No: HDG-821

The HDG-821 Series by Link Electronics is a series of broadcast High Definition Pattern Generators, providing the user with high quality, low cost system to produce HD Test Patterns. The HDG-821 is a self contained product for standard 19 inch rack mounting. This unit is a multi-format generator that can be used where various HD signals are required. Tri-level sync is on all analog component outputs, RGB or YUV. Sync output can be selected as Bi-level (black burst) or Tri-level. The HDG-821 is a high definition video test pattern generator in a stand-alone one rack (RU) chassis.

The HDG-821 has two serial digital outputs at 1.485 Gb/s and YUV/RGB analog outputs. The digital and analog outputs are simultaneous on the rear panel, and contain the same test pattern. The HDG-821 can be a free running (stand alone) unit or a gen-lock unit with a pair of looping BNC connectors on the rear panel. The gen-lock provides infinite adjustments of horizontal and vertical timing and gen-lock indication.

The user may embed internal audio tones on the digital video output if desired. There are two audio groups supported, which will allow for eight channels. The channels can be enabled on an individual basis. The internal tones generated are adjustable from 400Hz to 10 KHz with amplitude adjustment from -30 dBFS to 0 dBFS and silence. The unit will generate one of the two types of audio AES3 or AES11 (DARS). There are also two BNC connectors for AES output, which will allow four channels of audio for monitoring.

There are a total of thirty test signals available, including SMPTE, EIA and Full Field Bars. There are twenty three different HD formats available plus NTSC or PAL black burst. It also has a unit identification that can be enabled to uniquely identify up to 100 different units. It also has the ability to flash the unit identification on and off or the Id. Can be changed to a frame or second counter making the video active so that one can see if the video has been frozen when going thru other equipment.

The HD SDI output has a resettable ANC embedded time code. The output also has ANC embedded Active Format Description (AFD) in which the AFD value can be changed and the inserted line can be changed. There is a Video Payload Identifier (VPID) embedded in the SDI output. The SDI output also has a CEA-608 test message and a CEA-708 test message embedded on it. This allows you to test the ability of other equipment to read and pass this data.

The Link Electronics product design, performance and reliability are reflected in the New-Generation of Link Electronics products. A pair of lighted push buttons and an optical rotary encoder changes and selects between various menus. User friendly operation is a key concept of this instrument. The 20X2 Vacuum Fluorescent Display, shows data for operational functions. The user may choose to have all of the selections saved for power up defaults.

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