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GeckoFlex 8995DNC HD-to-SD Downconverter with Frame Sync

The 8995DNC is a compact, broadcast-quality fiber-ready downconverter. Conversion is of the highest quality, with pixel-adaptive motion processing. In addition, the 8995DNC provides the most robust signal handling with the low hysteresis synchronizer, redundant reference, and perfect-picture mode of the 8985FS.

It is fully featured with color-space conversion and a powerful video proc. amp, including RGB color correction with gamma and component adjustments with Y/C clip level adjustments.

Powerful embedded audio handling includes channel-level and Dolby E stream routing. PCM audio processing eliminates the clicks caused by the video synchronizer dropping or repeating frames. This board silences the effects of hot upstream video switching using a V-fade.

VITC and closed caption conversion are supported for same frame-rate downconversions, making this an ideal board for playout applications.

One of three types of optional SFP fiber optic sub-boards can be installed in the fiber optic rear cage connector to provide two fiber inputs (Dual Receiver), two fiber outputs (Dual Transmitter), or one fiber input and one fiber output (Transceiver).

  • High-quality downconverter with synchronizer for robust signal handling
  • Image enhancement and pixel-level motion adaptive conversion for superb picture quality
  • Full video proc. amp functions, including RGB and component color controls, video gain, chroma gain, phase control (hue), Y/C White and Y Black clip level controls, and color space conversion (ITU 601, ITU 709)
  • Embedded audio can be adjusted for gain, delay, channel pairing, and output processing, then re-embedded into the video output stream
  • Minimum delay (1 frame conversion) for low-latency live applications
  • Maximum adjustable delay up to 9 frames
  • Fiber-ready – accepts an optional SFP fiber device providing optical inputs or outputs
  • Optional genlock reference input submodule for reference timing that supports loop-through, Tri-level sync and color black
  • Where incoming feeds may be in either 1080 and 720 HD video formats
  • For live production where low latency conversion is required
  • For conversion of signals with embedded audio
  • Incoming lines ingest of any signal format into an HD system, including synchronization conversion and proc. amp adjustment
Supported Chassis Types
GeckoFlex with 8900NET board for configuration

Power Rating and Size
18 Watts – dual slot

HD-SDI: One electrical or optional fiber optic
  • Input equalization: up to 125m
  • Auto-sensing: Yes
  • Return loss: >15 dB, 5 to 270 MHz; >15 dB typical, to 1.5 GHz
Optical: Single-mode (optional)

SD-SDI: Four electrical and up to two additional optional fiber optic
  • Auto-sensing: yes
  • Return loss: >15 dB, 5 to 270 MHz; >15 dB typical, to 1.5 GHz
  • Signal level: 800 mVp-p ±10%
  • Rise/fall time (20-80%): 140 ps typ for HD, 500 ps typical for SD
  • Output jitter in frame sync mode, low jitter applied:
    < 0.2 UI p-p HD > 100 kHz
    < 1.0 UI p-p HD > 10 Hz
Optical: Single-mode (optional)

Electrical Length (delay)
Fixed delay mode:
  • Nominal: 2 frames (±1 pixel)
  • User-adjustable range: 2 frames minus 5 lines to 3 frames minus 5 lines
Synchronizing mode (asynchronous input):
  • Minimum: 2 frames minus 5 lines
  • Maximum: 3 frames minus 5 lines
Fixed delay mode = in minimum delay mode:
  • Nominal: 1 frame (±1 pixel)
  • User-adjustable range: 1 frame to 2 frames minus 5 lines
Synchronizing mode = in minimum delay mode (synchronous input):
  • Nominal: 1 frame (±1 pixel)
  • User-adjustable range: 1 frame to 2 frames minus 5 lines
Additional adjustable delay: 0 to 6 additional frames

Method: Motion adaptive
3:2/2:2 cadence: Automatic detection
Input: 1080i @ 59.94 Hz, 1080p @ 23.98, 1080sf @ 23.98, or 720p @ 59.94 Hz
  • Output choices: 480i @ 59.94 Hz
Input: 1080i @ 50 Hz or 720p @ 50 Hz
  • Output choices: 576i @ 50 Hz

Aspect Ratio Conversion
Conversion modes: 1:1, letterbox, pillarbox, anamorphic, 14:9

Synchronization (Genlock)
  • Standard frame bus genlock or external reference if genlock sub-board is installed (note at least one front board per frame must have genlock sub-board)
  • Adjustment: 0 to 1 frame in 1 SD pixel steps

Timecode and Closed Caption
VITC timecode and Closed Capiton HD to SD translation: for same frame rate and output line select for VITC and Closed Caption.
NOTE: VITC and CC may not work accurately in 23.98 Hz 3:2 pulldown from higher frame rate conversion

Control And Monitoring
Web page configuration: Yes
Local configuration: No
Newton support: Yes
NetConfig support: Yes
CommandCenter support: Yes
November 25, 2013
Hillsboro, Ore., November 25, 2013 — Brazil's Canção Nova, a non-profit Catholic Community located in Cachoeira Paulista in the state of São Paulo, is upgrading its broadcast infrastructure with a range of Grass Valley® solutions including five Maestro™ branding and master control systems, five Concerto™ 64x64 routing switchers, five GeckoFlex™ signal processing systems, and six K2 Summit® servers for optimized live event workflows. The system will be live in November and span five locations.
November 12, 2013
Hillsboro, Ore., November 12, 2013 — Bank TV, a satellite broadcaster in the Ukraine, has launched a complete, end-to-end high definition (HD) news production solution from Grass Valley® to facilitate the smooth delivery of its 24/7programming. At the core of the broadcaster's new structure is GV STRATUS® nonlinear media production tools for enhanced production and a streamlined workflow. GV STRATUS is being used in tandem with EDIUS® multiformat nonlinear editing software and GV Edge™ Integrated Playout System with K2 Edge™ playout nodes for 24/7 playout. This deal with Bank TV builds upon the recent momentum generated by Grass Valley in the Ukrainian broadcast market as well as traction gained by GV STRATUS in the EMEA region.
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