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AN/TPN-22 Precision Approach Radar (PAR)

The AN/TPN-22 Precision Approach Radar (PAR) is a transportable, computerized, pencil beam, 3-dimensional radar. The system is a track while scan radar which is used for landing tactical aircraft. The radar uses phase and frequency scanning techniques with an electronically steered beam antenna array. The system will track up to six aircraft and is capable of multi-mode operation: Mode I- fully automatic landing, Mode II ILS guidance commands to the aircraft and Mode III ground controlled approach talkdown. SNC developed a Solid State Modulator for the TPN-22 which provided a significant improvement in the system reliability.

The TPN-22 Solid State Modulator was developed by SNC for the U.S. Marine Corps and is currently in production.

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