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ASTRE 2000

Description of the radar set, tactical-technical characteristics

Figure 1: Astre 2000 in Paris/Orly,
(© 2006 User:Olivier2000, Wikipedia)

Figure 1: Astre 2000 in Paris/Orly,
(© 2006 User:Olivier2000, Wikipedia)

frequency: 15.7 bis 16.7 GHz
pulse repetition time (PRT): 122 Microseconds
pulse repetition frequency (PRF): 8192 Hertzes
pulsewidth (τ): 40 Nanoseconds
receive time:
dead time:
peak power: 22 to 24.9 kW
average power:
instrumented range:
range resolution:
beamwidth: β=0,33 Degrees   ε=3,5 Degrees
hits per scan:
antenna rotation: 1 Second

Surface Movement Radar ASTRE 2000

The Surface Movement Radar ASTRE 2000 is (or was) installed at the locations Athens, Berlin-Tegel, Dublin, Edinburgh, Heathrow, Milan, Moscow, Orly, Prague, Stansted, Vienna and others.

The radar uses a parabolic reflector antenna with an inverted cosecant squared diagram. It is a frequency diversity radar with two independently operating transmitters/receivers. The signal processing is also duplicated and every channel has a second signal input for the other one channel. A remotely operated switch selects the video of one of the channels for display. The output signal to the remote display units is a multiplex signal on a coaxial line with the individual and sum video as well as the synchronous pulses.

Nowadays the Radom and the ASTRE 200 is decomposed on the control tower Berlin- Tegel (TXL) visibly over a long distance. Instead of this one, a Scanter SMR antenna turns round.

Picture gallery of ASTRE 2000

Figure 2: Schematic of the antenna

Tower in Berlin-Tegel, Foto by Katja Heinschel

Figure 3: ASTRE 2000 under a radome on the tower in Berlin-Tegel

Figure 4: The tower in Berlin-Tegel today with a Scanter 2001 antenna