AN/SPN-5
Description of the radar set, tactical-technical characteristics
Figure 1: AN/SPN-5
Figure 1: AN/SPN-5
| Specifications | |
|---|---|
| frequency: | 9 320 … 9 430 MHz
(X-Band) |
| pulse repetition time (PRT): | |
| pulse repetition frequency (PRF): | 3000 or 750 Hz |
| pulsewidth (τ): | 0.25 or 1 µs |
| receiving time: | |
| dead time: | |
| peak power: | 30 kW |
| average power: | 25 W |
| instrumented range: | 40 NM (≙ 74 km) |
| range resolution: | |
| accuracy: | |
| beamwidth: | 1.8° |
| hits per scan: | |
| antenna rotation: | 10 min⁻¹ |
| MTBCF: | |
| MTTR: | |
AN/SPN-5
AN/SPN-5 is operating in the X-Band high resolution radar designed for navigational use aboard small Naval vessels. It is identical to RCA Radiomarine Model CR-101-A.
The antenna is a reflector type constructed of stainless steel made of a number of parabolic-shaped rods. It is about 5 feet wide, 1½ feet high, and 1½ feet deep. The horn radiator provides horizontal polarization.
The transmitter uses a type 725-A magnetron modulated by a type 5D21 tube (Tetrode).
