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LW/AW Mk Ⅰ

Description of the radar set, tactical-technical characteristics

Figure 1: LW/AW Mk ⅠA

Figure 1: LW/AW Mk ⅠA

Specifications
frequency: 200 MHz
(VHF-Band)
pulse repetition time (PRT):
pulse repetition frequency (PRF): 50 Hz
pulsewidth (τ): 20 µs
receive time:
dead time:
peak power: 10 … 15 kW
average power:
instrumented range: 100 NM (≙ 185 km)
range resolution:
accuracy:
beamwidth:
hits per scan:
antenna rotation:
MTBCF:
MTTR:

LW/AW Mk Ⅰ

LW/AW (Light Weight /Air Warning) was operating in the VHF-Band air surveillance radar family used extensively by Royal Australian Air Force.

All versions were fitted with a 5 inch wide A-scope. The used antenna is a group of 16 dipoles in front of a common rectangle reflector area. The smaller antennas on top of the large reflector are used by the IFF Mark Ⅲ interrogator.

The version LW/AW Mark ⅠA was tropicalized. Version LW/AW Mark Ⅱ used the same antenna but a new one transmitter with a peak power of 40 to 50 kW. The maximum range increased to 130 nautical miles (≙ 240 km) then.

151 of these radars were built until the end of the 2nd World War.