1. Introduction  
2. The λ 6 cm survey  
3. Source fitting procedure  
3.1. Total intensity fit  
3.2. Fit of linearly polarised sources  
4. The source list  
4.1. Total-intensity data  
4.2. Polarised sources  
5. Discussion  
5.1. Total-intensity data  
5.2. The polarised sources  
6. Concluding remarks