Radartutorial .eu 
AN/TPX-46(V) IFF interrogator
Figure 1: The TPX-46(V)7 IFF interrogator as used in the Patriot missile system
Manufacturer:
Hazeltine Corporation
(a subsidiary of GEC-Marconi Electronic Systems Corporation), Greenlawn, New York
The Hazeltine interrogator sets AN/TPX-46(V)1 to (V)6 are compatible with a wide range of missile systems including the Improved HAWK. Interface capabilities for other radar systems are incorporated. The AN/TPX-46(V)7 equipment (which is used in the Patriot missile system) is different from other versions in that the interrogator is computer-directed for single target evaluation and utilises an IFF antenna that is integrated into the main radar antenna. This IFF antenna is not supplied by Hazeltine. Components and modules from the AN/TPX-46(V)1 to (V)6 receiver/transmitter and processor are used extensively in the AN/TPX-46(V)7.
| Specifications | |
|---|---|
| frequency: | 1030 / 1090 megahertzes |
| pulse repetition time (PRT): | synchronuous to the primary radar |
| pulse repetition frequency (PRF): | synchronuous to the primary radar |
| pulsewidth (PW): | depending on mode |
| receive time: | |
| dead time: | |
| peak power: | 1,000 or 2,000 W, selectable; lower power model available |
| average power: | |
| displayed range: | |
| range resolution: | |
| beamwidth: | |
| hits per scan: | |
| antenna rotation: | integrated in the main antenna |
