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GeckoFlex 8906 Distribution Amplifier

This distribution amplifier offers all the features and functionality of our 8901 utility DA and our 8902 equalizing DA, plus a dual-speed clamp and video presence detection with SNMP trap generation. While all Grass Valley® distribution amplifiers remove differential or common mode hum induced by cable runs adjacent to AC mains cables, this module offers a dual-speed self-clamping circuit to handle single-ended hum caused by grounded coaxial cable shields. Additionally, a White Clipper circuit eliminates impulse noise above a user-selectable threshold. And the user-enabled video presence detection feature generates SNMP traps that can be sent to our NetCentral® SNMP manager or other SNMP systems for mission-critical applications.

  • Suitable for NTSC, PAL, SECAM, RGB, YUV, Tri-level sync
  • Passive differential looping input with eight active outputs
  • NTSC/PAL input presence detection with SNMP trap generation
  • Selectable AC, DC, DC restore, or clamp (slow/fast) input coupling
  • Selectable, dual-speed clamp for single-ended hum rejection
  • Adjustable White Clipper removes peak impulse transients
  • Card-edge adjustable cable-specific equalization for up to 300 meters
  • Card-edge adjustable gain control
  • Excellent differential gain and phase specifications
  • Card-edge status indicators

Supported Frame Types
GeckoFlex with 8900V-R GeckoFlex Video rear module, Gecko video frames: 8900TX-V, 8900TF-V, 8900TFN-V


Power Rating
2.3 Watts – single slot


Input
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


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


Performance
Cable equalization: Dual range

  • 0 to 150m (0 – 500 ft.)
  • 150 to 300m (500 – 1000 ft.)
White clip: On/off user selectable
Frequency response:
  • ±0.05 dB to 5 MHz
  • ±0.1 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, DC restore, clamp two speeds
Clamp hum rejection:
Slow: 20 dB
Fast: 46 dB
Electrical length: 22 ns
Temperature range: 0° to 30°C


Indicators/Controls
User controls: Output gain adjustment range: ±2 dB EQ adjustment for up to 300 meters of input cable
White clipper adjustment range: 500 mV to 1200 mV
LED indicators: Fault, power, frame bus communication

March 28, 2013
San Francisco, Calif., March 28, 2013 — Iglesia Cristiana Casa de Dios—the largest and fastest growing church in Guatemala—has selected Grass Valley® Live Production solutions to outfit its new church in order to produce high-quality programs for church members and viewers. Daily, Iglesia Cristiana Casa de Dios airs Latin America's number one rated Christian program on TBN's "Enlace" as well as Daystar's "Casa de Dios" and "Noches de Gloria". The programs are seen throughout the U.S., Central and South America, and parts of Europe.
August 14, 2012
San Francisco, Calif., August 14, 2012 (SET 2012 Broadcast & Cable, Stand D13/E2) — At the upcoming SET 2012 Broadcast & Cable show in Brazil, Grass Valley™ will demonstrate how acquiring, producing, and distributing all types of high-definition (HD) content with its latest technology solutions can save users time and money, while making their workflows much more efficient.

GeckoFlex 8906 Analog Video Clamping Equalizing Distribution Amplifier With SNMP Data Sheet

Posted Nov 17 2010 (MOD-4017M-5 8906) File Size: 198.3 KB

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