List of Figures

1. Block diagram of Planck demonstrator receiver.
2. Planck demonstrator mounted in a cryogenic test chamber.
3. 2 mm receiver installed to the antenna of Metsähovi Radio Observatory.
4. LO system mounted to the 2 mm receiver.
5. Quasi-optical mirrors in front of the 2 mm receiver.
6. Noise temperature of the 2 mm SIS receiver as a function of LO feed.
7. Gain and noise figure both with the adjusted (gm= 45 mS, Tds=4000 K) and the nominal foundry values (gm= 60 mS, Tds=1500 K).
8. Layout of LNA.
9. Magic T type waveguide hybrid.
10. A sample MB plot of solar radiation.
11. A MB plot of corresponding weather parameters.
12. A sample from ``Latest'' HTML script.
13. Sun antenna.
14. Sun antenna control rack.
15. Distributed antenna control computers.
16. The upper weather station.
17. The flux density of the galaxy 3C 120 at 37 GHz since 1981.
18. A new gigahertz-peaked spectrum (GPS) source PKS1936$-$155
19. The Planck satellite.
20. A sample solar map.