variable attenuator
AT2022-02
 
 

The AT2022 attenuator module is designed to operate within the intermediate frequency IF section of a satellite transmit or receive chain. The module provides between 2 and 17dB attenuation in 1dB steps selected by 4 control lines (Hex coded).

Local and remote operation is possible, remote control is performed via the 15 way D Type connector, local control is selected using the front panel button and control code provided by the Hex switch.

 

AT2022 Specification:

  • 16 discrete power settings
  • Remote/local control
  • Smooth power transitions
  • Compact size
  • By-pass mode on failure or via local control
  • Failure alarm
  • Multiple modules controlled independently using enable pin

  Connections:

  • Power +5V; 0V DC @ 200mA.15 W D (male)
  • RF signal 52-88MHz 75 Ohm. Max i/p power +20dBm
  • BNC (female) connector. VSWR 2:1
  • Band flatness <1dB
  • Control signals 4 control lines (pulled to 0V – 10mA sink) 15 W D (male)
  • Remote reporting of status and failure 15W D (male)  
  • RF performance
  • 52- 88 MHz operation
  • 0.5 or 1dB step sizes
  • Attenaution adjustment 0-7.5 or 0-15dB
  • 50 or 75 Ohm options
  • Insertion loss <2dB

 

Specification subject to change without prior notice