Type 903
Description of the radar set, tactical-technical characteristics

Figure 1: MRS3 fire control director with the Type 903 tracking radar mounted.
Sperry Corporation (1910-1986)
Specifications | |
---|---|
frequency: | 8 500 … 9 600 MHz
(X-Band) |
pulse repetition time (PRT): | |
pulse repetition frequency (PRF): | 3000 Hz |
pulsewidth (τ): | 0.1 µs |
receiving time: | |
dead time: | |
peak power: | 50 kW |
average power: | |
instrumented range: | 15 NM (≙ 28 km) |
range resolution: | |
accuracy: | |
beamwidth: | |
hits per scan: | |
antenna rotation: | |
MTBCF: | |
MTTR: |
Type 903
Type 903 was operating in X-Band naval fire control radar using a conical scan.
The antenna was a symmetrical parabolic reflector with a diameter of 4 feet (120 cm) fed by a Cutler-feed. The antenna was mounted to the gunnery director and moving with it.