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Analog Video Distribution Amplifier with Cable Equalization

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The 501ADA-EQ Analog Distribution Amplifier is a general purpose amplifier for distributing 75Ω analog video signals.

The 501ADA-EQ features one balanced equalized input with nine unbalanced outputs. The 501ADA-EQ amplifier has been designed to distribute a wide range of analog video signals. It can also distribute other pulses and signals that are less than 2V p-p.

The 501ADA-EQ is housed in the 3RU 500FR Exponent frame that will hold up to 16 modules.


  • 75Ω or high impedance input (jumper selectable)
  • High common mode range and common mode rejection ratio (CMRR)
  • Gain Control
  • Jumper selectable AC or DC coupling
  • Cable equalizer adjustment range: 0 to 300m of Belden 8281 or 1694
  • Looping feature with external "T" connector
  • Consistent input impedance if card power is lost
  • VistaLINK® capable for remote monitoring via SNMP (using VistaLINK® PRO) when installed in 500FR frame with 500FC VistaLINK® Frame Controller
  • Card Edge LED's

  • Module Status/Local Fault
  • Power Supply Status
  • EQ Warning


Analog Video Input

Standards Any analog video format, up to 2V p-p, and 30MHz bandwidth
Number of Inputs 1
Connector BNC per IEC 61169-8 Annex A
Common Mode Range > 6V p-p
CMRR > 70dB to 1kHz
Signal Amplitude 2.5V p-p max
Cable Equalizer 0 to 300m of Belden 8281 or 1694 cable
Impedance 75Ω terminated, 35kΩ Hi-Z (jumper selectable)
Coupling AC or DC (jumper selectable)
Return Loss > 40dB to 10MHz, > 30dB to 30MHz

Analog Video Output

Number of Outputs 9
Connector BNC per IEC 61169-8 Annex A
Impedance 75Ω
Gain Control Range ±5dB
DC Level < ±100mV (with DC coupling active)
Frequency Response < ±0.05dB (no equalization)
< ±0.09dB for 5 to 100m Belden 8281 or 1694 (to 5.5MHz)
< ±0.15dB for 100 to 300m Belden 8281 or 1694 (to 5.5MHz)
Differential Gain < 0.17% 0 to 300m
Differential Phase < 0.19° 0 to 300m
C/L gain inequality < ±0.1% for all cable lengths
C/L Delay < ±2ns
Isolation 42dB to 10MHz, 32dB to 30MHz
Return Loss > 40dB to 30MHz
Noise Performance
NTC7 Weighting RMS < -78dB
15kHz to 5.5MHz RMS < -70dB


Voltage +12V DC
Power 1.2 Watts
EMI/RFI Complies with FCC Part 15 Class A, EU EMC Directive


Number of Slots 1

Ordering Information

501ADA-EQ Analog Video Distribution Amplifier with Cable Equalization (1 x 9)


500FR 3RU Exponent Compact High Density Distribution Frame
S501FR 500 Series Standalone Enclosure


500FC VistaLINK® Frame Controller
CP-2116E-H Remote Control Panel
CP-2232E Remote Control Panel