Description of the radar set, tactical-technical characteristics
|frequency:||200 … 225 MHz
|pulse repetition time (PRT):|
|pulse repetition frequency (PRF):||170 … 190 Hz|
|pulsewidth (τ):||5 µs|
|peak power:||1 MW|
|average power:||900 W|
|instrumented range:||200 NM (≙ 370 km)|
|hits per scan:|
AN/TPS-28 was operating in VHF-Band long-range air surveillance radar for medium and high altitudes. It was transportable with a helicopter.
The transmitter uses four triode tubes of type 527. The modulator uses a hydrogen thyratron of type 5949. The antenna was an array of 8 radiators located in front of a common cylindrically shaped reflector.
The radar was built in the early 1960s. There were 145 of them in the U.S. Navy.