NMD-401
Description of the radar set, tactical-technical characteristics

Figure 1: NMD-401
Specifications | |
---|---|
frequency: | 9 320 … 9 430 MHz
(X-Band) |
pulse repetition time (PRT): | |
pulse repetition frequency (PRF): | 2 000 Hz |
pulsewidth (τ): | 0.3 µs |
receiving time: | |
dead time: | |
peak power: | 30 kW |
average power: | |
instrumented range: | 40 NM (≙ 74 km) |
range resolution: | |
accuracy: | |
beamwidth: | 1.8° |
hits per scan: | |
antenna rotation: | 10 min⁻¹ |
MTBCF: | |
MTTR: |
NMD-401
The NMD-401 was a maritime navigation radar operating in the X-Band In 1952 it was the first marine radar to be developed and built independently in Japan. The prototype was installed on the Hokuto-maru, the navigation training center of the Japanese Ministry of Transport.