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DA 01

Description of the radar set, tactical-technical characteristics

Figure 1: DA 01

Figure 1: DA 01 antenna in the Dutch Navy Museum in Den Helder
(© 2007 Jörg Waterstraat, www.kriegsschiffe.net)

frequency: S band
pulse repetition time (PRT):
pulse repetition frequency (PRF):
pulsewidth (τ):
receiving time:
dead time:
peak power:
average power:
instrumented range: 50 NM (≙ 90 km)
range resolution:
hits per scan:
antenna rotation:

DA 01

DA 01 (abbreviation of Dutch words: Doels Aanwijzing, i.e. target indication) was operating in S band air and sea surveillance radar for medium-range surveillance and target indication. The low weight of the antenna system enables installation in smaller ships.

The antenna is a parabolic reflector fed by an H-plane Sectoral Horn. It provides a Cosecant squared pattern. The transmitter used a magnetron.

The radar was developed in the mid-1950s. The export version of the DA 01 was named SGR 105/04.