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Figure 5.7 shows the performance of one of the Plateau de Bure
230GHz receivers. The present LO/IF system dictates a 1.5GHz IF,
therefore, these receivers are operated in DSB mode; in the
interferometer, the sidebands can be separated due to their different
fringe rates.
Figure 5.8 gives you a chance to peek at the cold RF assembly of one
of the dual-channel receivers in operation at the 30-m telescope since May
1998.
Figure 5.7:
DSB noise
performance of one of the 230GHz receivers in operation at the PdB
interferometer
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Figure 5.8:
The
cold RF assembly for a dual-channel receiver used at the 30-m
telescope.
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Anne Dutrey