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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