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Shipment for SK included spares, with tubes for 400 hours, and a separate generator if the ship's power is DC. SK was not air transportable. SK had 10 components weighing approximately 5,000 lb (2,300 kg). The heaviest unit, at 2,400 lb (1,100 kg), was the antenna assembly. The antenna measured 15 ft (4.6 m) x 16 ft 9 in (5.11 m).
Radar, AA, No 5, Mk Ii - AMES Type 11 Anti-aircraft local warning. [46] Radar, FA, No 1, Mk 1 - Control of artillery fire against ground targets. Radar, FA, No 1, Mk 2 - Control of artillery fire against ground targets. Radar, FA, No 2, Mk 1 - Doppler radar used to detect moving ground targets. Radar, FA, No 3, Mk 1 - Mortar locating.
The system, Japan's first full radar, was designated Mark 1 Model 1. (This type of designation is shortened herein to the numbers only; e.g., Type 11.) The system operated at 3.0 m (100 MHz) with a peak-power of 40 kW. Dipole arrays with mat-type reflectors were used in separate antennas for transmitting and receiving.
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Bearing can be determined to ±1/2°. Elevation can be determined to ±1/3° if an airplane is 2 1/2° or more above optical horizon. If the plane is lower, data is less reliable. Accuracy of range difference between two targets is ±50 yd (46 m) for separation of 500–10,000 yd (460–9,140 m). Elevation limit is 90°. [2]
CZ-USA, U.S. division; Česká zbrojovka Strakonice (ČZ a.s.), a Czech manufacturer of forklifts and formerly motorcycles and firearms; Crvena Zvezda, a Serbian football club; Cizeta, an Italian car manufacturer named for its founder, Claudio Zampolli (C.Z.) China Southern Airlines (IATA airline code CZ)
SC-2 and SC-3 also have PPI scopes, remote PPI's, and built-in BL and BI*antennas. [2] With antennas at 100', SC and SC-1 (without preamplifier) have a reliable maximum range of 30 miles on medium bombers at 1,000' altitude. With preamplifier, SC-1's range is extended to 75 miles – the same as that of SC-2 and SC-3.
The GL Mk. II required huge antennas to provide the desired accuracy while working at the relatively long 5 m wavelength. The British Army was the first group in Britain to suggest the use of radar; a 1931 report by W. A. S. Butement and P. E. Pollard of the Army's Signals Experimental Establishment proposed using it for detecting ships in the English Channel.