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Description of the radar set, tactical-technical characteristics

Figure 1: AN/TPS-48

Figure 1: AN/TPS-48

frequency: 2 900 … 3 100 MHz
(S band)
pulse repetition time (PRT):
pulse repetition frequency (PRF): 250 ±25 Hz
pulsewidth (τ): 6.7 µs
receiving time:
dead time:
peak power: 2.8 MW
average power: 4.7 kW
instrumented range: 242 mi (≙ 388 km)
range resolution:
hits per scan:
antenna rotation:


AN/TPS-48 was a highly mobile tactical ground radar set, operating in E-band, designed for simultaneous long-range search and height finding in a severe jamming environment.

The AN/TPS-48 used an antenna with Stacked Beam Cosecant Squared Pattern. The radar receivers use IF amplifiers with a logarithmic characteristic. The bandwidth of the receivers is switchable against active jamming. The radar signal processing includes an MTI- and the “Dicke Fix”- processing. The height system utilizes an analog computer and a digital evaluation system for providing an accurate target height.

The first radar of this type become operational in the US- Air Force on 4 December 1967.[1] This AN/TPS-48 was a transition radar to be replaced by the AN/TPS-43.

Picture gallery of AN/TPS-48

Figure 2: AN/TPS-48

Sources and ressorces:

  1. Department of the Air Force, United States Air Force Statistical Digest, Fiscal Year 1968, Washington, 30 September 1968 (23. Edition)