I-1402 Mode 4 Accessory Unit

The I-1402 Mode 4 Accessory Unit is designed to interface with the ATC-1400A Transponder / DME Test Set to provide additional pulse code modulation for testing both ATC and Mode 4 Transponders, as well as Radar Interrogators operating in ATC modes A,C and Mode 4.

This product has been replaced by the SI-1404 MK12 Unit.