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Pulse Forming Network (PFN)

This unit is a high voltage pulse-forming network, which is used in the E-2C Hawkeye Airborne Surveillance Radar. The unit forms a part of the E-Line modulator for the Coaxitron radar transmitter. This unit features a Pulse Width of 12.8 microseconds and is liquid cooled: FC-77 11.6 GPM.

Electrical Specifications

  • Pulse Width: 12.8 microseconds
  • Pulse repetition Rate: 285 to 305 pps
  • Peak Charging Voltage: 12.2 KV maximum
  • Pulse rise time: .7 microseconds maximum’
  • Pulse fall time: 2.1 microseconds maximum
  • Pulse Droop: 4% maximum
  • Ripple on pulse: 5% peak to peak

Mechanical Specifications

  • Weight: 115 lbs.
  • Size: 15″ x 18″ x 10″
  • Operating Temp: -54 to +71°C
  • Liquid Cooled: FC-77 11.6 GPM

Features

  • Full MIL-E-5400H Class 1 Environment, 35,000 foot altitude
  • 22,000 hour MTBF

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