GAOTek CATV Variable Optical Attenuator

This Variable Optical Attenuator for CATV is a device useful for testing continuously variable optical signal attentuation in CATV systems.


The GAOTek Variable Optical Attenuator for CATV is used for continuously variable optical signal attenuation. It device widely utilized for testing the optical system margin and linearity of CATV systems. It comes with convenient features including an optional auto-off function to conserve energy and being lightweight, portable, and easy to use. After being shut off, the system will retain the attenuating value and step.

Key Features

  • Displays dB and dBm attenuating value
  • 10 minutes Auto-off function can be activated and deactivated with keypad settings.
  • After being shut off, the system will have stored the attenuating value and the attenuating step.
  • Portable, rugged, lightweight;
  • Easy to use.

Technical Specifications

Attenuating wavelength Range 1260~1650nm
Fiber Model 9/125um SM
Optical Connector FC/PC
Calibrated wavelengths 1310/1490/1550/1625nm
Measurement Range 2~60dB
Resolution 0.05dB
Minimize Insertion Loss 2.0dB
Linearity ±0.5dB
Repeating ±0.2dB
Attenuating Accuracy ±0.8dB
Return Loss at Input/ Output 35dBtypical value40dB
Max input +20dBm
Displaying type lattice 128*64 black and white, white back ground light
Rechargeable batteries 8.4V
Power supply adaptor 8.4V
Operation temperature 0~40℃
Operation Time 40 hours
Storage temperature -10~60℃       //14 ~140 F
humidity 0~85%(non- condensation)
Dimensions 180X90X36.5
Weight 427g