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Sonifex RB-VHDA8 - 3G/HD/SD-SDI 1 Input, 8 Output Distribution Amplifier

by Sonifex
£851.94 inc. vat
£709.95 ex. vat
Please contact us for availability.

Sonifex RB-VHDA8

The Sonifex RB-VHDA8 is a high performance, reliable eight way digital video distribution amplifier for re-clocking and distributing a 3G, HD (high definition) or SD (standard definition) SDI source to eight outputs. The unit provides automatic input detection, re-clocking and cable equalisation of the input signal to 100/350 meters (HD/SD) of coax cable.

The full range of 3G, SD and HD standards are supported by the unit allowing PAL and NTSC signals up to 1080p 60Hz to be distributed. Each output is individually buffered providing separately driven outputs for greater reliability. As well as an AC power input, the unit also has a 12V DC input for use, for example, in outside broadcast vehicles.

Both power inputs can be used to give a dual redundant power supply; whichever voltage is higher will be used.

Sonifex RB-VHDA8 Specifications


  • Compatible Standards:
    • SMPTE-424M (3G) 
    • SMPTE-292M (HD-SDI)
    • SMPTE-259M-AC¹ (SD-SDI) 
    • SMPTE 344M¹ 
    • DVB-ASI² at 270Mb/s
  • Impedance: 75Ω terminating
  • Equalisation:
    • Up to 100m of Belden 1694A at 1.485Gbps
    • Up to 350m of Belden 1694A at 270 Mbps
  • Data Rates:
    • Fully supported: 143, 270, 1483.5,1485, 2967 & 2970Mbps
    • Passed but not reclocked: 177, 360 & 540Mbps
  • Reclocking & Equalisation: Automatic
  • Resolution: Automatic
  • Return Loss: >15dB at 1500MHz
  • Output Jitter: <0.2UI
  • Signal Level: 800mV ±10%   

Front Panel Indicators

  • Power LED: Amber indicates power is present, Red indicates detection of valid incoming SDI signal   

Rear Panel Connections 

  • HD/SD-SDI Video Input: 1 x BNC (Unbalanced)
  • HD/SD-SDI Video Outputs: 8 x BNC (Unbalanced)
  • Power Supply AC: Filtered IEC, continuously rated 85-264VAC, 47-63Hz, fused
  • Fuse Rating: Anti-surge fuse 2A 20 x 5mm
  • DC: 12V 300mA max, DC supply, 2.5mm socket fused      

Physical Specification

  • Dimensions:
    • 48cm (W) x 10.8cm (D) x 4.3cm (H) 
    • 19” (W) x 4.3” (D) x 1.7” (H) (1U)
  • Weight:
    • Nett: 1.3kg  Gross: 1.9kg
    • Nett: 2.9lbs Gross: 4.2lbs