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GeckoFlex 8901 Analog Video Universal Distribution Amplifier

This distribution amplifier is ideal for short cable runs of high-quality signals. Its flat frequency response and very impressive signal-to-noise ratio ensures high-quality copies to all eight outputs. The AC coupled mode is used when the incoming video signal has a blanking level at anything other than zero volts. For handling color-difference signals (B-Y, R-Y), DC input coupling is recommended. Additionally, the 8901 board can be used for simple fanout distribution of AES/EBU 1 Vp-p coaxial digital audio signals that do not need reclocking. The bandwidth of the 8901 easily handles the 6 MHz frequency response required by professional 48 kHz AES/EBU digital audio signals. Our entire line of both analog and digital distribution amplifiers offer passive differential loop-through inputs designed to remove common mode hum induced by cable runs adjacent to AC mains cables.

  • Suitable for NTSC, PAL, SECAM, RGB, YUV, Tri-level sync
  • Passive differential looping input with eight active outputs
  • Selectable AC or DC input coupling modes
  • Card-edge adjustable gain control
  • Excellent differential gain and phase specifications
  • Card-edge status indicators
Supported Chassis Types
GeckoFlex with 8900V-R GeckoFlex Video rear board, Gecko video chassis: 8900TX-V, 8900TF-V, 8900TFN-V

Power Rating
2.3 Watts – single slot

Type: 1 Vp-p analog video with operation up to 2 Vp-p NTSC, PAL, SECAM, RGB, YUV, Tri-level sync
Connector type: BNC
Impedance: Passive high impedance differential loop-through
Return loss: >40 dB up to 5 MHz
CMRR: >66 dB 50/60 Hz
Common mode input: ±10V

Voltage: 1 Vp-p ±2 dB
Number of outputs: Eight active plus one passive loop-through input window out
Connector type: BNC
Impedance: 75Ω
Return loss: >40 dB up to 5 MHz
Output DC: <50 mV

Frequency response:
  • ±0.025 dB to 5 MHz
  • ±0.05 dB 5 to 8 MHz
  • –1 dB at 16 MHz
Differential gain: <0.1%
Differential phase: <0.1°
Gain range: ±2 dB
Tilt: <0.5%
Coupling: AC, DC
Electrical length: 20 ns
Temperature range: 0° to 30°C

User controls: Output gain adjustment range: ±2 dB
LED indicators: Fault, power, frame bus communication
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.
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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