Description of the radar set, tactical-technical characteristics
Figure 1: Atlas 9600M, S-band antenna
|frequency:||3 050 MHz
|9 375 MHz
|pulse repetition time (PRT):|
|pulse repetition frequency (PRF):|
|peak power:||30 kW||24 kW|
|instrumented range:||25 NM (≙ 46 km)|
|beamwidth:||1.7º||1.5º or 0.9°|
|hits per scan:|
|antenna rotation:||23 rpm|
The transmitters generate both a short transmitting pulse for shorter ranges and a long transmitting pulse for maximum range. The S-band antenna is a 4.3 m wide waveguide slot antenna. For X-band, either 1.7 m or 2.6 m wide waveguide slot antennas could be used. All of these radar antennas use linear horizontal polarization.
The additional use of the S-band has the advantage that radar navigation is possible even when heavy rain makes the X-band (more accurate in better weather) too attenuated by the rain and therefore unusable.
- *) Under the names Atlas 9500-9800 various radar based ship navigation equipment is marketed by STN ATLAS Electronic GmbH. The associated radar transceivers do not have designators but are of the same design in all previous versions.